added files

midi-dials/Src/curelib_src/curebuffer.c

@@ -0,0 +1,272 @@
+/*
+ *******************************************************************************
+ *  [curebuffer.c]
+ *  This module is for FIFO buffer.
+ *
+ *  This program is under the terms of the GPLv3.
+ *  https://www.gnu.org/licenses/gpl-3.0.html
+ *
+ *  Copyright(c) 2017 Keshikan (www.keshikan.net)
+ *******************************************************************************
+ */
+
+#include "curebuffer.h"
+#include <stdint.h>
+#include <stdlib.h>
+
+
+/////////////////////////////
+//methods for uint8_t FIFO.
+/////////////////////////////
+
+BUFFER_STATUS cureRingBufferU8Init(RingBufferU8 *rbuf, uint16_t buflen)
+{
+
+	uint32_t i;
+
+	cureRingBufferU8Free(rbuf);
+
+		rbuf->buffer = (uint8_t *)malloc( buflen * sizeof(uint8_t) );
+		if(NULL == rbuf->buffer){
+			return BUFFER_FAILURE;
+		}
+		for(i=0; i<buflen; i++){
+			rbuf->buffer[i] = 0;
+		}
+
+	rbuf->length = buflen;
+
+	return BUFFER_SUCCESS;
+}
+
+BUFFER_STATUS cureRingBufferU8Free(RingBufferU8 *rbuf)
+{
+	if(NULL != rbuf->buffer){
+		free(rbuf->buffer);
+	}
+
+	rbuf->idx_front = rbuf->idx_rear = 0;
+	rbuf->length = 0;
+
+	return BUFFER_SUCCESS;
+}
+
+BUFFER_STATUS cureRingBufferU8Enqueue(RingBufferU8 *rbuf, uint8_t *inputc)
+{
+	if( ((rbuf->idx_front +1)&(rbuf->length -1)) == rbuf->idx_rear ){//buffer overrun error occurs.
+		return BUFFER_FAILURE;
+	}else{
+
+		rbuf->buffer[rbuf->idx_front]=  *inputc;
+		rbuf->idx_front++;
+		rbuf->idx_front &= (rbuf->length -1);
+		return BUFFER_SUCCESS;
+	}
+}
+
+BUFFER_STATUS cureRingBufferU8Dequeue(RingBufferU8 *rbuf, uint8_t *ret)
+{
+	if(rbuf->idx_front == rbuf->idx_rear){//if buffer underrun error occurs.
+		return BUFFER_FAILURE;
+	}else{
+
+		*ret = (rbuf->buffer[rbuf->idx_rear]);
+		rbuf->idx_rear++;
+		rbuf->idx_rear &= (rbuf->length -1);
+		return BUFFER_SUCCESS;
+	}
+}
+
+//debug
+uint16_t _cureRingBufferU8GetUsedSize(RingBufferU8 *rbuf)
+{
+	if(rbuf->idx_front >= rbuf->idx_rear){
+		return rbuf->idx_front - rbuf->idx_rear;
+	}else{
+		return rbuf->idx_front + rbuf->length - rbuf->idx_rear;
+	}
+
+}
+
+/////////////////////////////
+//methods for int16_t FIFO.
+/////////////////////////////
+
+BUFFER_STATUS cureRingBuffer16Init(RingBuffer16 *rbuf, uint16_t buflen)
+{
+
+	uint32_t i;
+
+	cureRingBuffer16Free(rbuf);
+
+		rbuf->buffer = (int16_t *)malloc( buflen * sizeof(int16_t) );
+		if(NULL == rbuf->buffer){
+			return BUFFER_FAILURE;
+		}
+		for(i=0; i<buflen; i++){
+			rbuf->buffer[i] = 0;
+		}
+	rbuf->length = buflen;
+	return BUFFER_SUCCESS;
+}
+
+BUFFER_STATUS cureRingBuffer16Free(RingBuffer16 *rbuf)
+{
+	if(NULL != rbuf->buffer){
+		free(rbuf->buffer);
+	}
+
+	rbuf->idx_front = rbuf->idx_rear = 0;
+	rbuf->length = 0;
+
+	return BUFFER_SUCCESS;
+}
+
+BUFFER_STATUS cureRingBuffer16Enqueue(RingBuffer16 *rbuf, int16_t *inputc)
+{
+	if( ((rbuf->idx_front +1)&(rbuf->length -1)) == rbuf->idx_rear ){//buffer overrun error occurs.
+		return BUFFER_FAILURE;
+	}else{
+		rbuf->buffer[rbuf->idx_front]=  *inputc;
+		rbuf->idx_front++;
+		rbuf->idx_front &= (rbuf->length -1);
+		return BUFFER_SUCCESS;
+	}
+}
+
+BUFFER_STATUS cureRingBuffer16EnqueueIgnoreErr(RingBuffer16 *rbuf, int16_t *inputc)
+{
+
+	rbuf->buffer[rbuf->idx_front]= *inputc;
+	rbuf->idx_front++;
+	rbuf->idx_front &= (rbuf->length -1);
+	return BUFFER_SUCCESS;
+
+}
+
+
+BUFFER_STATUS cureRingBuffer16Dequeue(RingBuffer16 *rbuf, int16_t *ret)
+{
+	if(rbuf->idx_front == rbuf->idx_rear){//if buffer underrun error occurs.
+		return BUFFER_FAILURE;
+	}else{
+		*ret = (rbuf->buffer[rbuf->idx_rear]);
+		rbuf->idx_rear++;
+		rbuf->idx_rear &= (rbuf->length -1);
+		return BUFFER_SUCCESS;
+	}
+}
+
+
+BUFFER_STATUS cureRingBuffer16GetElement(RingBuffer16 *rbuf, int16_t *ret, uint16_t delaynum, uint16_t delay_buffer_length)
+{
+
+	if(rbuf->idx_front >= delaynum){
+		rbuf->idx_rear = rbuf->idx_front - delaynum;
+	}else{
+		rbuf->idx_rear = delay_buffer_length - (delaynum - rbuf->idx_front);
+	}
+		*ret = (rbuf->buffer[rbuf->idx_rear]);
+		return BUFFER_SUCCESS;
+
+}
+
+/////////////////////////////
+//methods for uint32_t FIFO.
+/////////////////////////////
+
+BUFFER_STATUS cureRingBufferU32Init(RingBuffer32 *rbuf, uint16_t buflen)
+{
+
+	uint32_t i;
+
+	cureRingBufferU32Free(rbuf);
+
+		rbuf->buffer = (uint32_t *)malloc( buflen * sizeof(uint32_t) );
+		if(NULL == rbuf->buffer){
+			return BUFFER_FAILURE;
+		}
+		for(i=0; i<buflen; i++){
+			rbuf->buffer[i] = 0;
+		}
+	rbuf->length = buflen;
+	return BUFFER_SUCCESS;
+}
+
+BUFFER_STATUS cureRingBufferU32Free(RingBuffer32 *rbuf)
+{
+	if(NULL != rbuf->buffer){
+		free(rbuf->buffer);
+	}
+
+	rbuf->idx_front = rbuf->idx_rear = 0;
+	rbuf->length = 0;
+
+	return BUFFER_SUCCESS;
+}
+
+BUFFER_STATUS cureRingBufferU32Enqueue(RingBuffer32 *rbuf, uint32_t *inputc)
+{
+	if( ((rbuf->idx_front +1)&(rbuf->length -1)) == rbuf->idx_rear ){//buffer overrun error occurs.
+		return BUFFER_FAILURE;
+	}else{
+		rbuf->buffer[rbuf->idx_front]=  *inputc;
+		rbuf->idx_front++;
+		rbuf->idx_front &= (rbuf->length -1);
+		return BUFFER_SUCCESS;
+	}
+}
+
+BUFFER_STATUS cureRingBufferU32EnqueueIgnoreErr(RingBuffer32 *rbuf, uint32_t *inputc)
+{
+
+	rbuf->buffer[rbuf->idx_front]= *inputc;
+	rbuf->idx_front++;
+	rbuf->idx_front &= (rbuf->length -1);
+	return BUFFER_SUCCESS;
+
+}
+
+
+BUFFER_STATUS cureRingBufferU32Dequeue(RingBuffer32 *rbuf, uint32_t *ret)
+{
+	if(rbuf->idx_front == rbuf->idx_rear){//if buffer underrun error occurs.
+		return BUFFER_FAILURE;
+	}else{
+		*ret = (rbuf->buffer[rbuf->idx_rear]);
+		rbuf->idx_rear++;
+		rbuf->idx_rear &= (rbuf->length -1);
+		return BUFFER_SUCCESS;
+	}
+}
+
+
+BUFFER_STATUS cureRingBufferU32GetElement(RingBuffer32 *rbuf, uint32_t *ret, uint16_t delaynum, uint16_t delay_buffer_length)
+{
+	uint16_t buf;
+
+
+	if(rbuf->idx_front >= delaynum){
+		buf = rbuf->idx_front - delaynum;
+	}else{
+		buf = delay_buffer_length - (delaynum - rbuf->idx_front);
+	}
+		*ret = (rbuf->buffer[buf]);
+		return BUFFER_SUCCESS;
+
+}
+
+
+//BUFFER_STATUS cureRingBufferU32GetElement(RingBuffer32 *rbuf, uint32_t *ret, uint16_t delaynum, uint16_t delay_buffer_length)
+//{
+//
+//
+//	if(rbuf->idx_front >= delaynum){
+//		rbuf->idx_rear = rbuf->idx_front - delaynum;
+//	}else{
+//		rbuf->idx_rear = delay_buffer_length - (delaynum - rbuf->idx_front);
+//	}
+//		*ret = (rbuf->buffer[rbuf->idx_rear]);
+//		return BUFFER_SUCCESS;
+//
+//}

midi-dials/Src/main.c

@@ -0,0 +1,171 @@
+
+#include "main.h"
+#include "usb_device.h"
+#include "usbd_midi_if.h"
+
+#include "device_conf.h"
+#include "curemisc.h"
+#include "curebuffer.h"
+#include "usbd_midi_if.h"
+
+ADC_HandleTypeDef hadc;
+DMA_HandleTypeDef hdma_adc;
+
+PCD_HandleTypeDef hpcd_USB_FS;
+
+void SystemClock_Config(void);
+static void MX_GPIO_Init(void);
+static void MX_DMA_Init(void);
+static void MX_ADC_Init(void);
+static void MX_USB_PCD_Init(void);
+
+uint16_t ADCval[8];
+
+int main(void)
+{
+  HAL_Init();
+
+  SystemClock_Config();
+
+  MX_GPIO_Init();
+  MX_DMA_Init();
+  MX_ADC_Init();
+  MX_USB_MIDI_INIT();
+
+  HAL_ADC_Start_DMA(&hadc, ADCval, 8);
+
+  while (1)
+  {
+    HAL_GPIO_WritePin(GPIOB,GPIO_PIN_13,1);
+    HAL_Delay(1000);
+    HAL_GPIO_WritePin(GPIOB,GPIO_PIN_13,0);
+    HAL_Delay(1000);
+  }
+}
+
+void SystemClock_Config(void)
+{
+  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
+  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
+  RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};
+
+  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI14|RCC_OSCILLATORTYPE_HSI48;
+  RCC_OscInitStruct.HSI48State = RCC_HSI48_ON;
+  RCC_OscInitStruct.HSI14State = RCC_HSI14_ON;
+  RCC_OscInitStruct.HSI14CalibrationValue = 16;
+  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
+  HAL_RCC_OscConfig(&RCC_OscInitStruct);
+
+  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
+                              |RCC_CLOCKTYPE_PCLK1;
+  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI48;
+  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
+  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
+  HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1);
+
+  PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USB;
+  PeriphClkInit.UsbClockSelection = RCC_USBCLKSOURCE_HSI48;
+  HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit);
+
+}
+
+static void MX_ADC_Init(void)
+{
+
+  ADC_ChannelConfTypeDef sConfig = {0};
+
+  hadc.Instance = ADC1;
+  hadc.Init.ClockPrescaler = ADC_CLOCK_ASYNC_DIV1;
+  hadc.Init.Resolution = ADC_RESOLUTION_12B;
+  hadc.Init.DataAlign = ADC_DATAALIGN_RIGHT;
+  hadc.Init.ScanConvMode = ADC_SCAN_DIRECTION_FORWARD;
+  hadc.Init.EOCSelection = ADC_EOC_SEQ_CONV;
+  hadc.Init.LowPowerAutoWait = DISABLE;
+  hadc.Init.LowPowerAutoPowerOff = DISABLE;
+  hadc.Init.ContinuousConvMode = ENABLE;
+  hadc.Init.DiscontinuousConvMode = DISABLE;
+  hadc.Init.ExternalTrigConv = ADC_SOFTWARE_START;
+  hadc.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
+  hadc.Init.DMAContinuousRequests = ENABLE;
+  hadc.Init.Overrun = ADC_OVR_DATA_PRESERVED;
+  HAL_ADC_Init(&hadc);
+
+  sConfig.Channel = ADC_CHANNEL_0;
+  sConfig.Rank = ADC_RANK_CHANNEL_NUMBER;
+  sConfig.SamplingTime = ADC_SAMPLETIME_71CYCLES_5;
+  HAL_ADC_ConfigChannel(&hadc, &sConfig);
+
+  sConfig.Channel = ADC_CHANNEL_1;
+  HAL_ADC_ConfigChannel(&hadc, &sConfig);
+
+  sConfig.Channel = ADC_CHANNEL_2;
+  HAL_ADC_ConfigChannel(&hadc, &sConfig);
+
+  sConfig.Channel = ADC_CHANNEL_3;
+  HAL_ADC_ConfigChannel(&hadc, &sConfig);
+
+  sConfig.Channel = ADC_CHANNEL_4;
+  HAL_ADC_ConfigChannel(&hadc, &sConfig);
+
+  sConfig.Channel = ADC_CHANNEL_5;
+  HAL_ADC_ConfigChannel(&hadc, &sConfig);
+
+  sConfig.Channel = ADC_CHANNEL_6;
+  HAL_ADC_ConfigChannel(&hadc, &sConfig);
+
+  sConfig.Channel = ADC_CHANNEL_7;
+  HAL_ADC_ConfigChannel(&hadc, &sConfig);
+
+  sConfig.Channel = ADC_CHANNEL_8;
+  HAL_ADC_ConfigChannel(&hadc, &sConfig);
+}
+
+static void MX_USB_PCD_Init(void)
+{
+
+  hpcd_USB_FS.Instance = USB;
+  hpcd_USB_FS.Init.dev_endpoints = 8;
+  hpcd_USB_FS.Init.speed = PCD_SPEED_FULL;
+  hpcd_USB_FS.Init.phy_itface = PCD_PHY_EMBEDDED;
+  hpcd_USB_FS.Init.low_power_enable = DISABLE;
+  hpcd_USB_FS.Init.lpm_enable = DISABLE;
+  hpcd_USB_FS.Init.battery_charging_enable = DISABLE;
+  HAL_PCD_Init(&hpcd_USB_FS);
+}
+
+
+static void MX_DMA_Init(void)
+{
+  __HAL_RCC_DMA1_CLK_ENABLE();
+
+  HAL_NVIC_SetPriority(DMA1_Channel1_IRQn, 0, 0);
+  HAL_NVIC_EnableIRQ(DMA1_Channel1_IRQn);
+}
+
+
+static void MX_GPIO_Init(void)
+{
+
+  GPIO_InitTypeDef GPIO_InitStruct = {0};
+
+  __HAL_RCC_GPIOB_CLK_ENABLE();
+  __HAL_RCC_GPIOA_CLK_ENABLE();
+
+  HAL_GPIO_WritePin(GPIOB, GPIO_PIN_13, GPIO_PIN_RESET);
+
+  GPIO_InitStruct.Pin = GPIO_PIN_13;
+  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
+  GPIO_InitStruct.Pull = GPIO_NOPULL;
+  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
+  HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
+}
+
+void Error_Handler(void)
+{
+  while(1){
+    HAL_GPIO_WritePin(GPIOB,GPIO_PIN_13,1);
+    HAL_Delay(100);
+    HAL_GPIO_WritePin(GPIOB,GPIO_PIN_13,0);
+    HAL_Delay(100);
+  }
+}

midi-dials/Src/stm32f0xx_hal_msp.c

@@ -0,0 +1,191 @@
+/* USER CODE BEGIN Header */
+/**
+  ******************************************************************************
+  * File Name          : stm32f0xx_hal_msp.c
+  * Description        : This file provides code for the MSP Initialization
+  *                      and de-Initialization codes.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; Copyright (c) 2020 STMicroelectronics.
+  * All rights reserved.</center></h2>
+  *
+  * This software component is licensed by ST under BSD 3-Clause license,
+  * the "License"; You may not use this file except in compliance with the
+  * License. You may obtain a copy of the License at:
+  *                        opensource.org/licenses/BSD-3-Clause
+  *
+  ******************************************************************************
+  */
+/* USER CODE END Header */
+
+/* Includes ------------------------------------------------------------------*/
+#include "main.h"
+/* USER CODE BEGIN Includes */
+
+/* USER CODE END Includes */
+extern DMA_HandleTypeDef hdma_adc;
+
+/* Private typedef -----------------------------------------------------------*/
+/* USER CODE BEGIN TD */
+
+/* USER CODE END TD */
+
+/* Private define ------------------------------------------------------------*/
+/* USER CODE BEGIN Define */
+
+/* USER CODE END Define */
+
+/* Private macro -------------------------------------------------------------*/
+/* USER CODE BEGIN Macro */
+
+/* USER CODE END Macro */
+
+/* Private variables ---------------------------------------------------------*/
+/* USER CODE BEGIN PV */
+
+/* USER CODE END PV */
+
+/* Private function prototypes -----------------------------------------------*/
+/* USER CODE BEGIN PFP */
+
+/* USER CODE END PFP */
+
+/* External functions --------------------------------------------------------*/
+/* USER CODE BEGIN ExternalFunctions */
+
+/* USER CODE END ExternalFunctions */
+
+/* USER CODE BEGIN 0 */
+
+/* USER CODE END 0 */
+/**
+  * Initializes the Global MSP.
+  */
+void HAL_MspInit(void)
+{
+  /* USER CODE BEGIN MspInit 0 */
+
+  /* USER CODE END MspInit 0 */
+
+  __HAL_RCC_SYSCFG_CLK_ENABLE();
+  __HAL_RCC_PWR_CLK_ENABLE();
+
+  /* System interrupt init*/
+
+  /* USER CODE BEGIN MspInit 1 */
+
+  /* USER CODE END MspInit 1 */
+}
+
+/**
+* @brief ADC MSP Initialization
+* This function configures the hardware resources used in this example
+* @param hadc: ADC handle pointer
+* @retval None
+*/
+void HAL_ADC_MspInit(ADC_HandleTypeDef* hadc)
+{
+  GPIO_InitTypeDef GPIO_InitStruct = {0};
+  if(hadc->Instance==ADC1)
+  {
+  /* USER CODE BEGIN ADC1_MspInit 0 */
+
+  /* USER CODE END ADC1_MspInit 0 */
+    /* Peripheral clock enable */
+    __HAL_RCC_ADC1_CLK_ENABLE();
+
+    __HAL_RCC_GPIOA_CLK_ENABLE();
+    __HAL_RCC_GPIOB_CLK_ENABLE();
+    /**ADC GPIO Configuration
+    PA0     ------> ADC_IN0
+    PA1     ------> ADC_IN1
+    PA2     ------> ADC_IN2
+    PA3     ------> ADC_IN3
+    PA4     ------> ADC_IN4
+    PA5     ------> ADC_IN5
+    PA6     ------> ADC_IN6
+    PA7     ------> ADC_IN7
+    PB0     ------> ADC_IN8
+    */
+    GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3
+                          |GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7;
+    GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
+    GPIO_InitStruct.Pull = GPIO_NOPULL;
+    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+
+    GPIO_InitStruct.Pin = GPIO_PIN_0;
+    GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
+    GPIO_InitStruct.Pull = GPIO_NOPULL;
+    HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
+
+    /* ADC1 DMA Init */
+    /* ADC Init */
+    hdma_adc.Instance = DMA1_Channel1;
+    hdma_adc.Init.Direction = DMA_PERIPH_TO_MEMORY;
+    hdma_adc.Init.PeriphInc = DMA_PINC_DISABLE;
+    hdma_adc.Init.MemInc = DMA_MINC_ENABLE;
+    hdma_adc.Init.PeriphDataAlignment = DMA_PDATAALIGN_HALFWORD;
+    hdma_adc.Init.MemDataAlignment = DMA_MDATAALIGN_HALFWORD;
+    hdma_adc.Init.Mode = DMA_CIRCULAR;
+    hdma_adc.Init.Priority = DMA_PRIORITY_MEDIUM;
+    if (HAL_DMA_Init(&hdma_adc) != HAL_OK)
+    {
+      Error_Handler();
+    }
+
+    __HAL_LINKDMA(hadc,DMA_Handle,hdma_adc);
+
+  /* USER CODE BEGIN ADC1_MspInit 1 */
+
+  /* USER CODE END ADC1_MspInit 1 */
+  }
+
+}
+
+/**
+* @brief ADC MSP De-Initialization
+* This function freeze the hardware resources used in this example
+* @param hadc: ADC handle pointer
+* @retval None
+*/
+void HAL_ADC_MspDeInit(ADC_HandleTypeDef* hadc)
+{
+  if(hadc->Instance==ADC1)
+  {
+  /* USER CODE BEGIN ADC1_MspDeInit 0 */
+
+  /* USER CODE END ADC1_MspDeInit 0 */
+    /* Peripheral clock disable */
+    __HAL_RCC_ADC1_CLK_DISABLE();
+
+    /**ADC GPIO Configuration
+    PA0     ------> ADC_IN0
+    PA1     ------> ADC_IN1
+    PA2     ------> ADC_IN2
+    PA3     ------> ADC_IN3
+    PA4     ------> ADC_IN4
+    PA5     ------> ADC_IN5
+    PA6     ------> ADC_IN6
+    PA7     ------> ADC_IN7
+    PB0     ------> ADC_IN8
+    */
+    HAL_GPIO_DeInit(GPIOA, GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3
+                          |GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7);
+
+    HAL_GPIO_DeInit(GPIOB, GPIO_PIN_0);
+
+    /* ADC1 DMA DeInit */
+    HAL_DMA_DeInit(hadc->DMA_Handle);
+  /* USER CODE BEGIN ADC1_MspDeInit 1 */
+
+  /* USER CODE END ADC1_MspDeInit 1 */
+  }
+
+}
+
+/* USER CODE BEGIN 1 */
+
+/* USER CODE END 1 */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

midi-dials/Src/stm32f0xx_it.c

@@ -0,0 +1,176 @@
+/* USER CODE BEGIN Header */
+/**
+  ******************************************************************************
+  * @file    stm32f0xx_it.c
+  * @brief   Interrupt Service Routines.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; Copyright (c) 2020 STMicroelectronics.
+  * All rights reserved.</center></h2>
+  *
+  * This software component is licensed by ST under BSD 3-Clause license,
+  * the "License"; You may not use this file except in compliance with the
+  * License. You may obtain a copy of the License at:
+  *                        opensource.org/licenses/BSD-3-Clause
+  *
+  ******************************************************************************
+  */
+/* USER CODE END Header */
+
+/* Includes ------------------------------------------------------------------*/
+#include "main.h"
+#include "stm32f0xx_it.h"
+/* Private includes ----------------------------------------------------------*/
+/* USER CODE BEGIN Includes */
+/* USER CODE END Includes */
+
+/* Private typedef -----------------------------------------------------------*/
+/* USER CODE BEGIN TD */
+
+/* USER CODE END TD */
+
+/* Private define ------------------------------------------------------------*/
+/* USER CODE BEGIN PD */
+
+/* USER CODE END PD */
+
+/* Private macro -------------------------------------------------------------*/
+/* USER CODE BEGIN PM */
+
+/* USER CODE END PM */
+
+/* Private variables ---------------------------------------------------------*/
+/* USER CODE BEGIN PV */
+
+/* USER CODE END PV */
+
+/* Private function prototypes -----------------------------------------------*/
+/* USER CODE BEGIN PFP */
+
+/* USER CODE END PFP */
+
+/* Private user code ---------------------------------------------------------*/
+/* USER CODE BEGIN 0 */
+
+/* USER CODE END 0 */
+
+/* External variables --------------------------------------------------------*/
+extern DMA_HandleTypeDef hdma_adc;
+extern PCD_HandleTypeDef hpcd_USB_FS;
+
+/* USER CODE BEGIN EV */
+
+/* USER CODE END EV */
+
+/******************************************************************************/
+/*           Cortex-M0 Processor Interruption and Exception Handlers          */
+/******************************************************************************/
+/**
+  * @brief This function handles Non maskable interrupt.
+  */
+void NMI_Handler(void)
+{
+  /* USER CODE BEGIN NonMaskableInt_IRQn 0 */
+
+  /* USER CODE END NonMaskableInt_IRQn 0 */
+  /* USER CODE BEGIN NonMaskableInt_IRQn 1 */
+
+  /* USER CODE END NonMaskableInt_IRQn 1 */
+}
+
+/**
+  * @brief This function handles Hard fault interrupt.
+  */
+void HardFault_Handler(void)
+{
+  /* USER CODE BEGIN HardFault_IRQn 0 */
+
+  /* USER CODE END HardFault_IRQn 0 */
+  while (1)
+  {
+    /* USER CODE BEGIN W1_HardFault_IRQn 0 */
+    /* USER CODE END W1_HardFault_IRQn 0 */
+  }
+}
+
+/**
+  * @brief This function handles System service call via SWI instruction.
+  */
+void SVC_Handler(void)
+{
+  /* USER CODE BEGIN SVC_IRQn 0 */
+
+  /* USER CODE END SVC_IRQn 0 */
+  /* USER CODE BEGIN SVC_IRQn 1 */
+
+  /* USER CODE END SVC_IRQn 1 */
+}
+
+/**
+  * @brief This function handles Pendable request for system service.
+  */
+void PendSV_Handler(void)
+{
+  /* USER CODE BEGIN PendSV_IRQn 0 */
+
+  /* USER CODE END PendSV_IRQn 0 */
+  /* USER CODE BEGIN PendSV_IRQn 1 */
+
+  /* USER CODE END PendSV_IRQn 1 */
+}
+
+/**
+  * @brief This function handles System tick timer.
+  */
+void SysTick_Handler(void)
+{
+  /* USER CODE BEGIN SysTick_IRQn 0 */
+
+  /* USER CODE END SysTick_IRQn 0 */
+  HAL_IncTick();
+  /* USER CODE BEGIN SysTick_IRQn 1 */
+
+  /* USER CODE END SysTick_IRQn 1 */
+}
+
+/******************************************************************************/
+/* STM32F0xx Peripheral Interrupt Handlers                                    */
+/* Add here the Interrupt Handlers for the used peripherals.                  */
+/* For the available peripheral interrupt handler names,                      */
+/* please refer to the startup file (startup_stm32f0xx.s).                    */
+/******************************************************************************/
+
+/**
+  * @brief This function handles DMA1 channel 1 global interrupt.
+  */
+void DMA1_Channel1_IRQHandler(void)
+{
+  /* USER CODE BEGIN DMA1_Channel1_IRQn 0 */
+
+  /* USER CODE END DMA1_Channel1_IRQn 0 */
+  HAL_DMA_IRQHandler(&hdma_adc);
+  /* USER CODE BEGIN DMA1_Channel1_IRQn 1 */
+
+  /* USER CODE END DMA1_Channel1_IRQn 1 */
+}
+
+/**
+* @brief This function handles USB global Interrupt / USB wake-up interrupt through EXTI line 18.
+*/
+void USB_IRQHandler(void)
+{
+  /* USER CODE BEGIN USB_IRQn 0 */
+
+  /* USER CODE END USB_IRQn 0 */
+  HAL_PCD_IRQHandler(&hpcd_USB_FS);
+  /* USER CODE BEGIN USB_IRQn 1 */
+
+  /* USER CODE END USB_IRQn 1 */
+}
+
+
+/* USER CODE BEGIN 1 */
+
+/* USER CODE END 1 */
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

midi-dials/Src/system_stm32f0xx.c

@@ -0,0 +1,265 @@
+/**
+  ******************************************************************************
+  * @file    system_stm32f0xx.c
+  * @author  MCD Application Team
+  * @brief   CMSIS Cortex-M0 Device Peripheral Access Layer System Source File.
+  *
+  * 1. This file provides two functions and one global variable to be called from
+  *    user application:
+  *      - SystemInit(): This function is called at startup just after reset and 
+  *                      before branch to main program. This call is made inside
+  *                      the "startup_stm32f0xx.s" file.
+  *
+  *      - SystemCoreClock variable: Contains the core clock (HCLK), it can be used
+  *                                  by the user application to setup the SysTick
+  *                                  timer or configure other parameters.
+  *
+  *      - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must
+  *                                 be called whenever the core clock is changed
+  *                                 during program execution.
+  *
+  * 2. After each device reset the HSI (8 MHz) is used as system clock source.
+  *    Then SystemInit() function is called, in "startup_stm32f0xx.s" file, to
+  *    configure the system clock before to branch to main program.
+  *
+  * 3. This file configures the system clock as follows:
+  *=============================================================================
+  *                         Supported STM32F0xx device
+  *-----------------------------------------------------------------------------
+  *        System Clock source                    | HSI
+  *-----------------------------------------------------------------------------
+  *        SYSCLK(Hz)                             | 8000000
+  *-----------------------------------------------------------------------------
+  *        HCLK(Hz)                               | 8000000
+  *-----------------------------------------------------------------------------
+  *        AHB Prescaler                          | 1
+  *-----------------------------------------------------------------------------
+  *        APB1 Prescaler                         | 1
+  *-----------------------------------------------------------------------------
+  *=============================================================================
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; Copyright (c) 2016 STMicroelectronics.
+  * All rights reserved.</center></h2>
+  *
+  * This software component is licensed by ST under BSD 3-Clause license,
+  * the "License"; You may not use this file except in compliance with the
+  * License. You may obtain a copy of the License at:
+  *                        opensource.org/licenses/BSD-3-Clause
+  *
+  ******************************************************************************
+  */
+
+/** @addtogroup CMSIS
+  * @{
+  */
+
+/** @addtogroup stm32f0xx_system
+  * @{
+  */
+
+/** @addtogroup STM32F0xx_System_Private_Includes
+  * @{
+  */
+
+#include "stm32f0xx.h"
+
+/**
+  * @}
+  */
+
+/** @addtogroup STM32F0xx_System_Private_TypesDefinitions
+  * @{
+  */
+
+/**
+  * @}
+  */
+
+/** @addtogroup STM32F0xx_System_Private_Defines
+  * @{
+  */
+#if !defined  (HSE_VALUE) 
+  #define HSE_VALUE    ((uint32_t)8000000) /*!< Default value of the External oscillator in Hz.
+                                                This value can be provided and adapted by the user application. */
+#endif /* HSE_VALUE */
+
+#if !defined  (HSI_VALUE)
+  #define HSI_VALUE    ((uint32_t)8000000) /*!< Default value of the Internal oscillator in Hz.
+                                                This value can be provided and adapted by the user application. */
+#endif /* HSI_VALUE */
+
+#if !defined (HSI48_VALUE)
+#define HSI48_VALUE    ((uint32_t)48000000) /*!< Default value of the HSI48 Internal oscillator in Hz.
+                                                 This value can be provided and adapted by the user application. */
+#endif /* HSI48_VALUE */
+/**
+  * @}
+  */
+
+/** @addtogroup STM32F0xx_System_Private_Macros
+  * @{
+  */
+
+/**
+  * @}
+  */
+
+/** @addtogroup STM32F0xx_System_Private_Variables
+  * @{
+  */
+  /* This variable is updated in three ways:
+      1) by calling CMSIS function SystemCoreClockUpdate()
+      2) by calling HAL API function HAL_RCC_GetHCLKFreq()
+      3) each time HAL_RCC_ClockConfig() is called to configure the system clock frequency
+         Note: If you use this function to configure the system clock there is no need to
+               call the 2 first functions listed above, since SystemCoreClock variable is 
+               updated automatically.
+  */
+uint32_t SystemCoreClock = 8000000;
+
+const uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
+const uint8_t APBPrescTable[8]  = {0, 0, 0, 0, 1, 2, 3, 4};
+
+/**
+  * @}
+  */
+
+/** @addtogroup STM32F0xx_System_Private_FunctionPrototypes
+  * @{
+  */
+
+/**
+  * @}
+  */
+
+/** @addtogroup STM32F0xx_System_Private_Functions
+  * @{
+  */
+
+/**
+  * @brief  Setup the microcontroller system.
+  * @param  None
+  * @retval None
+  */
+void SystemInit(void)
+{
+  /* NOTE :SystemInit(): This function is called at startup just after reset and 
+                         before branch to main program. This call is made inside
+                         the "startup_stm32f0xx.s" file.
+                         User can setups the default system clock (System clock source, PLL Multiplier
+                         and Divider factors, AHB/APBx prescalers and Flash settings).
+   */
+}
+
+/**
+   * @brief  Update SystemCoreClock variable according to Clock Register Values.
+  *         The SystemCoreClock variable contains the core clock (HCLK), it can
+  *         be used by the user application to setup the SysTick timer or configure
+  *         other parameters.
+  *
+  * @note   Each time the core clock (HCLK) changes, this function must be called
+  *         to update SystemCoreClock variable value. Otherwise, any configuration
+  *         based on this variable will be incorrect.
+  *
+  * @note   - The system frequency computed by this function is not the real
+  *           frequency in the chip. It is calculated based on the predefined
+  *           constant and the selected clock source:
+  *
+  *           - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*)
+  *
+  *           - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**)
+  *
+  *           - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**)
+  *             or HSI_VALUE(*) multiplied/divided by the PLL factors.
+  *
+  *         (*) HSI_VALUE is a constant defined in stm32f0xx_hal.h file (default value
+  *             8 MHz) but the real value may vary depending on the variations
+  *             in voltage and temperature.
+  *
+  *         (**) HSE_VALUE is a constant defined in stm32f0xx_hal.h file (default value
+  *              8 MHz), user has to ensure that HSE_VALUE is same as the real
+  *              frequency of the crystal used. Otherwise, this function may
+  *              have wrong result.
+  *
+  *         - The result of this function could be not correct when using fractional
+  *           value for HSE crystal.
+  *
+  * @param  None
+  * @retval None
+  */
+void SystemCoreClockUpdate (void)
+{
+  uint32_t tmp = 0, pllmull = 0, pllsource = 0, predivfactor = 0;
+
+  /* Get SYSCLK source -------------------------------------------------------*/
+  tmp = RCC->CFGR & RCC_CFGR_SWS;
+
+  switch (tmp)
+  {
+    case RCC_CFGR_SWS_HSI:  /* HSI used as system clock */
+      SystemCoreClock = HSI_VALUE;
+      break;
+    case RCC_CFGR_SWS_HSE:  /* HSE used as system clock */
+      SystemCoreClock = HSE_VALUE;
+      break;
+    case RCC_CFGR_SWS_PLL:  /* PLL used as system clock */
+      /* Get PLL clock source and multiplication factor ----------------------*/
+      pllmull = RCC->CFGR & RCC_CFGR_PLLMUL;
+      pllsource = RCC->CFGR & RCC_CFGR_PLLSRC;
+      pllmull = ( pllmull >> 18) + 2;
+      predivfactor = (RCC->CFGR2 & RCC_CFGR2_PREDIV) + 1;
+
+      if (pllsource == RCC_CFGR_PLLSRC_HSE_PREDIV)
+      {
+        /* HSE used as PLL clock source : SystemCoreClock = HSE/PREDIV * PLLMUL */
+        SystemCoreClock = (HSE_VALUE/predivfactor) * pllmull;
+      }
+#if defined(STM32F042x6) || defined(STM32F048xx) || defined(STM32F072xB) || defined(STM32F078xx) || defined(STM32F091xC) || defined(STM32F098xx)
+      else if (pllsource == RCC_CFGR_PLLSRC_HSI48_PREDIV)
+      {
+        /* HSI48 used as PLL clock source : SystemCoreClock = HSI48/PREDIV * PLLMUL */
+        SystemCoreClock = (HSI48_VALUE/predivfactor) * pllmull;
+      }
+#endif /* STM32F042x6 || STM32F048xx || STM32F072xB || STM32F078xx || STM32F091xC || STM32F098xx */
+      else
+      {
+#if defined(STM32F042x6) || defined(STM32F048xx)  || defined(STM32F070x6) \
+ || defined(STM32F078xx) || defined(STM32F071xB)  || defined(STM32F072xB) \
+ || defined(STM32F070xB) || defined(STM32F091xC) || defined(STM32F098xx)  || defined(STM32F030xC)
+        /* HSI used as PLL clock source : SystemCoreClock = HSI/PREDIV * PLLMUL */
+        SystemCoreClock = (HSI_VALUE/predivfactor) * pllmull;
+#else
+        /* HSI used as PLL clock source : SystemCoreClock = HSI/2 * PLLMUL */
+        SystemCoreClock = (HSI_VALUE >> 1) * pllmull;
+#endif /* STM32F042x6 || STM32F048xx || STM32F070x6 || 
+          STM32F071xB || STM32F072xB || STM32F078xx || STM32F070xB ||
+          STM32F091xC || STM32F098xx || STM32F030xC */
+      }
+      break;
+    default: /* HSI used as system clock */
+      SystemCoreClock = HSI_VALUE;
+      break;
+  }
+  /* Compute HCLK clock frequency ----------------*/
+  /* Get HCLK prescaler */
+  tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)];
+  /* HCLK clock frequency */
+  SystemCoreClock >>= tmp;
+}
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+

midi-dials/Src/usb_device.c

@@ -0,0 +1,132 @@
+/**
+  ******************************************************************************
+  * @file           : usb_device.c
+  * @version        : v2.0_Cube
+  * @brief          : This file implements the USB Device
+  ******************************************************************************
+  * This notice applies to any and all portions of this file
+  * that are not between comment pairs USER CODE BEGIN and
+  * USER CODE END. Other portions of this file, whether 
+  * inserted by the user or by software development tools
+  * are owned by their respective copyright owners.
+  *
+  * Copyright (c) 2018 STMicroelectronics International N.V. 
+  * All rights reserved.
+  *
+  * Redistribution and use in source and binary forms, with or without 
+  * modification, are permitted, provided that the following conditions are met:
+  *
+  * 1. Redistribution of source code must retain the above copyright notice, 
+  *    this list of conditions and the following disclaimer.
+  * 2. Redistributions in binary form must reproduce the above copyright notice,
+  *    this list of conditions and the following disclaimer in the documentation
+  *    and/or other materials provided with the distribution.
+  * 3. Neither the name of STMicroelectronics nor the names of other 
+  *    contributors to this software may be used to endorse or promote products 
+  *    derived from this software without specific written permission.
+  * 4. This software, including modifications and/or derivative works of this 
+  *    software, must execute solely and exclusively on microcontroller or
+  *    microprocessor devices manufactured by or for STMicroelectronics.
+  * 5. Redistribution and use of this software other than as permitted under 
+  *    this license is void and will automatically terminate your rights under 
+  *    this license. 
+  *
+  * THIS SOFTWARE IS PROVIDED BY STMICROELECTRONICS AND CONTRIBUTORS "AS IS" 
+  * AND ANY EXPRESS, IMPLIED OR STATUTORY WARRANTIES, INCLUDING, BUT NOT 
+  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A 
+  * PARTICULAR PURPOSE AND NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY
+  * RIGHTS ARE DISCLAIMED TO THE FULLEST EXTENT PERMITTED BY LAW. IN NO EVENT 
+  * SHALL STMICROELECTRONICS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, 
+  * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 
+  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 
+  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+  * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */
+
+/* Includes ------------------------------------------------------------------*/
+
+#include "usb_device.h"
+#include "usbd_core.h"
+#include "usbd_desc.h"
+
+/* USER CODE BEGIN Includes */
+#include "usbd_midi.h"
+#include "usbd_midi_if.h"
+
+/* USER CODE END Includes */
+
+/* USER CODE BEGIN PV */
+/* Private variables ---------------------------------------------------------*/
+
+/* USER CODE END PV */
+
+/* USER CODE BEGIN PFP */
+/* Private function prototypes -----------------------------------------------*/
+
+/* USER CODE END PFP */
+
+/* USB Device Core handle declaration. */
+USBD_HandleTypeDef hUsbDeviceFS;
+
+/*
+ * -- Insert your variables declaration here --
+ */
+/* USER CODE BEGIN 0 */
+
+/* USER CODE END 0 */
+
+/*
+ * -- Insert your external function declaration here --
+ */
+/* USER CODE BEGIN 1 */
+
+void MX_USB_MIDI_INIT(void)
+{
+  USBD_Init(&hUsbDeviceFS, &FS_Desc, DEVICE_FS);
+
+  USBD_RegisterClass(&hUsbDeviceFS, &USBD_MIDI);
+
+  USBD_MIDI_RegisterInterface(&hUsbDeviceFS, &USBD_Interface_fops_FS);
+
+  USBD_Start(&hUsbDeviceFS);
+}
+
+/* USER CODE END 1 */
+
+/**
+  * Init USB device Library, add supported class and start the library
+  * @retval None
+  */
+void MX_USB_DEVICE_Init(void)
+{
+  /* USER CODE BEGIN USB_DEVICE_Init_PreTreatment */
+#ifdef USBMIDI
+  /* USER CODE END USB_DEVICE_Init_PreTreatment */
+  
+  /* Init Device Library, add supported class and start the library. */
+  USBD_Init(&hUsbDeviceFS, &FS_Desc, DEVICE_FS);
+
+  USBD_RegisterClass(&hUsbDeviceFS, &USBD_CDC);
+
+  USBD_CDC_RegisterInterface(&hUsbDeviceFS, &USBD_Interface_fops_FS);
+
+  USBD_Start(&hUsbDeviceFS);
+
+  /* USER CODE BEGIN USB_DEVICE_Init_PostTreatment */
+#endif
+  /* USER CODE END USB_DEVICE_Init_PostTreatment */
+}
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

midi-dials/Src/usbd_conf.c

@@ -0,0 +1,775 @@
+/**
+  ******************************************************************************
+  * @file           : usbd_conf.c
+  * @version        : v2.0_Cube
+  * @brief          : This file implements the board support package for the USB device library
+  ******************************************************************************
+  * This notice applies to any and all portions of this file
+  * that are not between comment pairs USER CODE BEGIN and
+  * USER CODE END. Other portions of this file, whether
+  * inserted by the user or by software development tools
+  * are owned by their respective copyright owners.
+  *
+  * Copyright (c) 2018 STMicroelectronics International N.V.
+  * All rights reserved.
+  *
+  * Redistribution and use in source and binary forms, with or without
+  * modification, are permitted, provided that the following conditions are met:
+  *
+  * 1. Redistribution of source code must retain the above copyright notice,
+  *    this list of conditions and the following disclaimer.
+  * 2. Redistributions in binary form must reproduce the above copyright notice,
+  *    this list of conditions and the following disclaimer in the documentation
+  *    and/or other materials provided with the distribution.
+  * 3. Neither the name of STMicroelectronics nor the names of other
+  *    contributors to this software may be used to endorse or promote products
+  *    derived from this software without specific written permission.
+  * 4. This software, including modifications and/or derivative works of this
+  *    software, must execute solely and exclusively on microcontroller or
+  *    microprocessor devices manufactured by or for STMicroelectronics.
+  * 5. Redistribution and use of this software other than as permitted under
+  *    this license is void and will automatically terminate your rights under
+  *    this license.
+  *
+  * THIS SOFTWARE IS PROVIDED BY STMICROELECTRONICS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS, IMPLIED OR STATUTORY WARRANTIES, INCLUDING, BUT NOT
+  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+  * PARTICULAR PURPOSE AND NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY
+  * RIGHTS ARE DISCLAIMED TO THE FULLEST EXTENT PERMITTED BY LAW. IN NO EVENT
+  * SHALL STMICROELECTRONICS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
+  * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+  * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f0xx.h"
+#include "stm32f0xx_hal.h"
+#include "usbd_def.h"
+#include "usbd_core.h"
+
+/* USER CODE BEGIN Includes */
+
+/* USER CODE END Includes */
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macro -------------------------------------------------------------*/
+
+/* USER CODE BEGIN PV */
+/* Private variables ---------------------------------------------------------*/
+
+/* USER CODE END PV */
+
+PCD_HandleTypeDef hpcd_USB_FS;
+//void _Error_Handler(char * file, int line);
+
+/* USER CODE BEGIN 0 */
+
+/* USER CODE END 0 */
+
+/* USER CODE BEGIN PFP */
+/* Private function prototypes -----------------------------------------------*/
+
+/* USER CODE END PFP */
+
+/* Private functions ---------------------------------------------------------*/
+
+/* USER CODE BEGIN 1 */
+
+/* USER CODE END 1 */
+void HAL_PCDEx_SetConnectionState(PCD_HandleTypeDef *hpcd, uint8_t state);
+//extern void SystemClock_Config(void);
+
+/*******************************************************************************
+                       LL Driver Callbacks (PCD -> USB Device Library)
+*******************************************************************************/
+/* MSP Init */
+
+void HAL_PCD_MspInit(PCD_HandleTypeDef* pcdHandle)
+{
+  if(pcdHandle->Instance==USB)
+  {
+  /* USER CODE BEGIN USB_MspInit 0 */
+
+  /* USER CODE END USB_MspInit 0 */
+    /* Peripheral clock enable */
+    __HAL_RCC_USB_CLK_ENABLE();
+
+    /* Peripheral interrupt init */
+    HAL_NVIC_SetPriority(USB_IRQn, 1, 0);
+    HAL_NVIC_EnableIRQ(USB_IRQn);
+  /* USER CODE BEGIN USB_MspInit 1 */
+
+  /* USER CODE END USB_MspInit 1 */
+  }
+}
+
+void HAL_PCD_MspDeInit(PCD_HandleTypeDef* pcdHandle)
+{
+  if(pcdHandle->Instance==USB)
+  {
+  /* USER CODE BEGIN USB_MspDeInit 0 */
+
+  /* USER CODE END USB_MspDeInit 0 */
+    /* Peripheral clock disable */
+    __HAL_RCC_USB_CLK_DISABLE();
+
+    /* Peripheral interrupt Deinit*/
+    HAL_NVIC_DisableIRQ(USB_IRQn);
+
+  /* USER CODE BEGIN USB_MspDeInit 1 */
+
+  /* USER CODE END USB_MspDeInit 1 */
+  }
+}
+
+/**
+  * @brief  Setup stage callback
+  * @param  hpcd: PCD handle
+  * @retval None
+  */
+void HAL_PCD_SetupStageCallback(PCD_HandleTypeDef *hpcd)
+{
+  USBD_LL_SetupStage((USBD_HandleTypeDef*)hpcd->pData, (uint8_t *)hpcd->Setup);
+}
+
+/**
+  * @brief  Data Out stage callback.
+  * @param  hpcd: PCD handle
+  * @param  epnum: Endpoint number
+  * @retval None
+  */
+void HAL_PCD_DataOutStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
+{
+  USBD_LL_DataOutStage((USBD_HandleTypeDef*)hpcd->pData, epnum, hpcd->OUT_ep[epnum].xfer_buff);
+}
+
+/**
+  * @brief  Data In stage callback.
+  * @param  hpcd: PCD handle
+  * @param  epnum: Endpoint number
+  * @retval None
+  */
+void HAL_PCD_DataInStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
+{
+  USBD_LL_DataInStage((USBD_HandleTypeDef*)hpcd->pData, epnum, hpcd->IN_ep[epnum].xfer_buff);
+}
+
+/**
+  * @brief  SOF callback.
+  * @param  hpcd: PCD handle
+  * @retval None
+  */
+void HAL_PCD_SOFCallback(PCD_HandleTypeDef *hpcd)
+{
+  USBD_LL_SOF((USBD_HandleTypeDef*)hpcd->pData);
+}
+
+/**
+  * @brief  Reset callback.
+  * @param  hpcd: PCD handle
+  * @retval None
+  */
+void HAL_PCD_ResetCallback(PCD_HandleTypeDef *hpcd)
+{
+  USBD_SpeedTypeDef speed = USBD_SPEED_FULL;
+
+  /* Set USB current speed. */
+  switch (hpcd->Init.speed)
+  {
+  case PCD_SPEED_FULL:
+    speed = USBD_SPEED_FULL;
+    break;
+
+  default:
+    speed = USBD_SPEED_FULL;
+    break;
+  }
+  USBD_LL_SetSpeed((USBD_HandleTypeDef*)hpcd->pData, speed);
+
+  /* Reset Device. */
+  USBD_LL_Reset((USBD_HandleTypeDef*)hpcd->pData);
+}
+
+/**
+  * @brief  Suspend callback.
+  * When Low power mode is enabled the debug cannot be used (IAR, Keil doesn't support it)
+  * @param  hpcd: PCD handle
+  * @retval None
+  */
+void HAL_PCD_SuspendCallback(PCD_HandleTypeDef *hpcd)
+{
+  /* Inform USB library that core enters in suspend Mode. */
+  USBD_LL_Suspend((USBD_HandleTypeDef*)hpcd->pData);
+  /* Enter in STOP mode. */
+  /* USER CODE BEGIN 2 */
+  if (hpcd->Init.low_power_enable)
+  {
+    /* Set SLEEPDEEP bit and SleepOnExit of Cortex System Control Register. */
+    SCB->SCR |= (uint32_t)((uint32_t)(SCB_SCR_SLEEPDEEP_Msk | SCB_SCR_SLEEPONEXIT_Msk));
+  }
+  /* USER CODE END 2 */
+}
+
+/**
+  * @brief  Resume callback.
+  * When Low power mode is enabled the debug cannot be used (IAR, Keil doesn't support it)
+  * @param  hpcd: PCD handle
+  * @retval None
+  */
+void HAL_PCD_ResumeCallback(PCD_HandleTypeDef *hpcd)
+{
+  /* USER CODE BEGIN 3 */
+
+  /* USER CODE END 3 */
+  USBD_LL_Resume((USBD_HandleTypeDef*)hpcd->pData);
+}
+
+/**
+  * @brief  ISOOUTIncomplete callback.
+  * @param  hpcd: PCD handle
+  * @param  epnum: Endpoint number
+  * @retval None
+  */
+void HAL_PCD_ISOOUTIncompleteCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
+{
+  USBD_LL_IsoOUTIncomplete((USBD_HandleTypeDef*)hpcd->pData, epnum);
+}
+
+/**
+  * @brief  ISOINIncomplete callback.
+  * @param  hpcd: PCD handle
+  * @param  epnum: Endpoint number
+  * @retval None
+  */
+void HAL_PCD_ISOINIncompleteCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
+{
+  USBD_LL_IsoINIncomplete((USBD_HandleTypeDef*)hpcd->pData, epnum);
+}
+
+/**
+  * @brief  Connect callback.
+  * @param  hpcd: PCD handle
+  * @retval None
+  */
+void HAL_PCD_ConnectCallback(PCD_HandleTypeDef *hpcd)
+{
+  USBD_LL_DevConnected((USBD_HandleTypeDef*)hpcd->pData);
+}
+
+/**
+  * @brief  Disconnect callback.
+  * @param  hpcd: PCD handle
+  * @retval None
+  */
+void HAL_PCD_DisconnectCallback(PCD_HandleTypeDef *hpcd)
+{
+  USBD_LL_DevDisconnected((USBD_HandleTypeDef*)hpcd->pData);
+}
+
+/*******************************************************************************
+                       LL Driver Interface (USB Device Library --> PCD)
+*******************************************************************************/
+
+/**
+  * @brief  Initializes the low level portion of the device driver.
+  * @param  pdev: Device handle
+  * @retval USBD status
+  */
+USBD_StatusTypeDef USBD_LL_Init(USBD_HandleTypeDef *pdev)
+{
+  /* Init USB Ip. */
+  /* Link the driver to the stack. */
+  hpcd_USB_FS.pData = pdev;
+  pdev->pData = &hpcd_USB_FS;
+
+  hpcd_USB_FS.Instance = USB;
+  hpcd_USB_FS.Init.dev_endpoints = 8;
+  hpcd_USB_FS.Init.speed = PCD_SPEED_FULL;
+  hpcd_USB_FS.Init.ep0_mps = DEP0CTL_MPS_64;
+  hpcd_USB_FS.Init.phy_itface = PCD_PHY_EMBEDDED;
+  hpcd_USB_FS.Init.low_power_enable = DISABLE;
+  hpcd_USB_FS.Init.lpm_enable = DISABLE;
+  hpcd_USB_FS.Init.battery_charging_enable = DISABLE;
+  if (HAL_PCD_Init(&hpcd_USB_FS) != HAL_OK)
+  {
+    //_Error_Handler(__FILE__, __LINE__);
+  }
+
+  HAL_PCDEx_PMAConfig((PCD_HandleTypeDef*)pdev->pData , 0x00 , PCD_SNG_BUF, 0x18);
+  HAL_PCDEx_PMAConfig((PCD_HandleTypeDef*)pdev->pData , 0x80 , PCD_SNG_BUF, 0x58);
+  HAL_PCDEx_PMAConfig((PCD_HandleTypeDef*)pdev->pData , 0x81 , PCD_SNG_BUF, 0xC0);
+  HAL_PCDEx_PMAConfig((PCD_HandleTypeDef*)pdev->pData , 0x01 , PCD_SNG_BUF, 0x110);
+  HAL_PCDEx_PMAConfig((PCD_HandleTypeDef*)pdev->pData , 0x82 , PCD_SNG_BUF, 0x100);
+  return USBD_OK;
+}
+
+/**
+  * @brief  De-Initializes the low level portion of the device driver.
+  * @param  pdev: Device handle
+  * @retval USBD status
+  */
+USBD_StatusTypeDef USBD_LL_DeInit(USBD_HandleTypeDef *pdev)
+{
+  HAL_StatusTypeDef hal_status = HAL_OK;
+  USBD_StatusTypeDef usb_status = USBD_OK;
+
+  hal_status = HAL_PCD_DeInit(pdev->pData);
+
+  switch (hal_status) {
+    case HAL_OK :
+      usb_status = USBD_OK;
+    break;
+    case HAL_ERROR :
+      usb_status = USBD_FAIL;
+    break;
+    case HAL_BUSY :
+      usb_status = USBD_BUSY;
+    break;
+    case HAL_TIMEOUT :
+      usb_status = USBD_FAIL;
+    break;
+    default :
+      usb_status = USBD_FAIL;
+    break;
+  }
+  return usb_status;
+}
+
+/**
+  * @brief  Starts the low level portion of the device driver.
+  * @param  pdev: Device handle
+  * @retval USBD status
+  */
+USBD_StatusTypeDef USBD_LL_Start(USBD_HandleTypeDef *pdev)
+{
+  HAL_StatusTypeDef hal_status = HAL_OK;
+  USBD_StatusTypeDef usb_status = USBD_OK;
+
+  hal_status = HAL_PCD_Start(pdev->pData);
+
+  switch (hal_status) {
+    case HAL_OK :
+      usb_status = USBD_OK;
+    break;
+    case HAL_ERROR :
+      usb_status = USBD_FAIL;
+    break;
+    case HAL_BUSY :
+      usb_status = USBD_BUSY;
+    break;
+    case HAL_TIMEOUT :
+      usb_status = USBD_FAIL;
+    break;
+    default :
+      usb_status = USBD_FAIL;
+    break;
+  }
+  return usb_status;
+}
+
+/**
+  * @brief  Stops the low level portion of the device driver.
+  * @param  pdev: Device handle
+  * @retval USBD status
+  */
+USBD_StatusTypeDef USBD_LL_Stop(USBD_HandleTypeDef *pdev)
+{
+  HAL_StatusTypeDef hal_status = HAL_OK;
+  USBD_StatusTypeDef usb_status = USBD_OK;
+
+  hal_status = HAL_PCD_Stop(pdev->pData);
+
+  switch (hal_status) {
+    case HAL_OK :
+      usb_status = USBD_OK;
+    break;
+    case HAL_ERROR :
+      usb_status = USBD_FAIL;
+    break;
+    case HAL_BUSY :
+      usb_status = USBD_BUSY;
+    break;
+    case HAL_TIMEOUT :
+      usb_status = USBD_FAIL;
+    break;
+    default :
+      usb_status = USBD_FAIL;
+    break;
+  }
+  return usb_status;
+}
+
+/**
+  * @brief  Opens an endpoint of the low level driver.
+  * @param  pdev: Device handle
+  * @param  ep_addr: Endpoint number
+  * @param  ep_type: Endpoint type
+  * @param  ep_mps: Endpoint max packet size
+  * @retval USBD status
+  */
+USBD_StatusTypeDef USBD_LL_OpenEP(USBD_HandleTypeDef *pdev, uint8_t ep_addr, uint8_t ep_type, uint16_t ep_mps)
+{
+  HAL_StatusTypeDef hal_status = HAL_OK;
+  USBD_StatusTypeDef usb_status = USBD_OK;
+
+  hal_status = HAL_PCD_EP_Open(pdev->pData, ep_addr, ep_mps, ep_type);
+
+  switch (hal_status) {
+    case HAL_OK :
+      usb_status = USBD_OK;
+    break;
+    case HAL_ERROR :
+      usb_status = USBD_FAIL;
+    break;
+    case HAL_BUSY :
+      usb_status = USBD_BUSY;
+    break;
+    case HAL_TIMEOUT :
+      usb_status = USBD_FAIL;
+    break;
+    default :
+      usb_status = USBD_FAIL;
+    break;
+  }
+  return usb_status;
+}
+
+/**
+  * @brief  Closes an endpoint of the low level driver.
+  * @param  pdev: Device handle
+  * @param  ep_addr: Endpoint number
+  * @retval USBD status
+  */
+USBD_StatusTypeDef USBD_LL_CloseEP(USBD_HandleTypeDef *pdev, uint8_t ep_addr)
+{
+  HAL_StatusTypeDef hal_status = HAL_OK;
+  USBD_StatusTypeDef usb_status = USBD_OK;
+
+  hal_status = HAL_PCD_EP_Close(pdev->pData, ep_addr);
+
+  switch (hal_status) {
+    case HAL_OK :
+      usb_status = USBD_OK;
+    break;
+    case HAL_ERROR :
+      usb_status = USBD_FAIL;
+    break;
+    case HAL_BUSY :
+      usb_status = USBD_BUSY;
+    break;
+    case HAL_TIMEOUT :
+      usb_status = USBD_FAIL;
+    break;
+    default :
+      usb_status = USBD_FAIL;
+    break;
+  }
+  return usb_status;
+}
+
+/**
+  * @brief  Flushes an endpoint of the Low Level Driver.
+  * @param  pdev: Device handle
+  * @param  ep_addr: Endpoint number
+  * @retval USBD status
+  */
+USBD_StatusTypeDef USBD_LL_FlushEP(USBD_HandleTypeDef *pdev, uint8_t ep_addr)
+{
+  HAL_StatusTypeDef hal_status = HAL_OK;
+  USBD_StatusTypeDef usb_status = USBD_OK;
+
+  hal_status = HAL_PCD_EP_Flush(pdev->pData, ep_addr);
+
+  switch (hal_status) {
+    case HAL_OK :
+      usb_status = USBD_OK;
+    break;
+    case HAL_ERROR :
+      usb_status = USBD_FAIL;
+    break;
+    case HAL_BUSY :
+      usb_status = USBD_BUSY;
+    break;
+    case HAL_TIMEOUT :
+      usb_status = USBD_FAIL;
+    break;
+    default :
+      usb_status = USBD_FAIL;
+    break;
+  }
+  return usb_status;
+}
+
+/**
+  * @brief  Sets a Stall condition on an endpoint of the Low Level Driver.
+  * @param  pdev: Device handle
+  * @param  ep_addr: Endpoint number
+  * @retval USBD status
+  */
+USBD_StatusTypeDef USBD_LL_StallEP(USBD_HandleTypeDef *pdev, uint8_t ep_addr)
+{
+  HAL_StatusTypeDef hal_status = HAL_OK;
+  USBD_StatusTypeDef usb_status = USBD_OK;
+
+  hal_status = HAL_PCD_EP_SetStall(pdev->pData, ep_addr);
+
+  switch (hal_status) {
+    case HAL_OK :
+      usb_status = USBD_OK;
+    break;
+    case HAL_ERROR :
+      usb_status = USBD_FAIL;
+    break;
+    case HAL_BUSY :
+      usb_status = USBD_BUSY;
+    break;
+    case HAL_TIMEOUT :
+      usb_status = USBD_FAIL;
+    break;
+    default :
+      usb_status = USBD_FAIL;
+    break;
+  }
+  return usb_status;
+}
+
+/**
+  * @brief  Clears a Stall condition on an endpoint of the Low Level Driver.
+  * @param  pdev: Device handle
+  * @param  ep_addr: Endpoint number
+  * @retval USBD status
+  */
+USBD_StatusTypeDef USBD_LL_ClearStallEP(USBD_HandleTypeDef *pdev, uint8_t ep_addr)
+{
+  HAL_StatusTypeDef hal_status = HAL_OK;
+  USBD_StatusTypeDef usb_status = USBD_OK;
+
+  hal_status = HAL_PCD_EP_ClrStall(pdev->pData, ep_addr);
+
+  switch (hal_status) {
+    case HAL_OK :
+      usb_status = USBD_OK;
+    break;
+    case HAL_ERROR :
+      usb_status = USBD_FAIL;
+    break;
+    case HAL_BUSY :
+      usb_status = USBD_BUSY;
+    break;
+    case HAL_TIMEOUT :
+      usb_status = USBD_FAIL;
+    break;
+    default :
+      usb_status = USBD_FAIL;
+    break;
+  }
+  return usb_status;
+}
+
+/**
+  * @brief  Returns Stall condition.
+  * @param  pdev: Device handle
+  * @param  ep_addr: Endpoint number
+  * @retval Stall (1: Yes, 0: No)
+  */
+uint8_t USBD_LL_IsStallEP(USBD_HandleTypeDef *pdev, uint8_t ep_addr)
+{
+  PCD_HandleTypeDef *hpcd = (PCD_HandleTypeDef*) pdev->pData;
+
+  if((ep_addr & 0x80) == 0x80)
+  {
+    return hpcd->IN_ep[ep_addr & 0x7F].is_stall;
+  }
+  else
+  {
+    return hpcd->OUT_ep[ep_addr & 0x7F].is_stall;
+  }
+}
+
+/**
+  * @brief  Assigns a USB address to the device.
+  * @param  pdev: Device handle
+  * @param  dev_addr: Device address
+  * @retval USBD status
+  */
+USBD_StatusTypeDef USBD_LL_SetUSBAddress(USBD_HandleTypeDef *pdev, uint8_t dev_addr)
+{
+  HAL_StatusTypeDef hal_status = HAL_OK;
+  USBD_StatusTypeDef usb_status = USBD_OK;
+
+  hal_status = HAL_PCD_SetAddress(pdev->pData, dev_addr);
+
+  switch (hal_status) {
+    case HAL_OK :
+      usb_status = USBD_OK;
+    break;
+    case HAL_ERROR :
+      usb_status = USBD_FAIL;
+    break;
+    case HAL_BUSY :
+      usb_status = USBD_BUSY;
+    break;
+    case HAL_TIMEOUT :
+      usb_status = USBD_FAIL;
+    break;
+    default :
+      usb_status = USBD_FAIL;
+    break;
+  }
+  return usb_status;
+}
+
+/**
+  * @brief  Transmits data over an endpoint.
+  * @param  pdev: Device handle
+  * @param  ep_addr: Endpoint number
+  * @param  pbuf: Pointer to data to be sent
+  * @param  size: Data size
+  * @retval USBD status
+  */
+USBD_StatusTypeDef USBD_LL_Transmit(USBD_HandleTypeDef *pdev, uint8_t ep_addr, uint8_t *pbuf, uint16_t size)
+{
+  HAL_StatusTypeDef hal_status = HAL_OK;
+  USBD_StatusTypeDef usb_status = USBD_OK;
+
+  hal_status = HAL_PCD_EP_Transmit(pdev->pData, ep_addr, pbuf, size);
+
+  switch (hal_status) {
+    case HAL_OK :
+      usb_status = USBD_OK;
+    break;
+    case HAL_ERROR :
+      usb_status = USBD_FAIL;
+    break;
+    case HAL_BUSY :
+      usb_status = USBD_BUSY;
+    break;
+    case HAL_TIMEOUT :
+      usb_status = USBD_FAIL;
+    break;
+    default :
+      usb_status = USBD_FAIL;
+    break;
+  }
+  return usb_status;
+}
+
+/**
+  * @brief  Prepares an endpoint for reception.
+  * @param  pdev: Device handle
+  * @param  ep_addr: Endpoint number
+  * @param  pbuf: Pointer to data to be received
+  * @param  size: Data size
+  * @retval USBD status
+  */
+USBD_StatusTypeDef USBD_LL_PrepareReceive(USBD_HandleTypeDef *pdev, uint8_t ep_addr, uint8_t *pbuf, uint16_t size)
+{
+  HAL_StatusTypeDef hal_status = HAL_OK;
+  USBD_StatusTypeDef usb_status = USBD_OK;
+
+  hal_status = HAL_PCD_EP_Receive(pdev->pData, ep_addr, pbuf, size);
+
+  switch (hal_status) {
+    case HAL_OK :
+      usb_status = USBD_OK;
+    break;
+    case HAL_ERROR :
+      usb_status = USBD_FAIL;
+    break;
+    case HAL_BUSY :
+      usb_status = USBD_BUSY;
+    break;
+    case HAL_TIMEOUT :
+      usb_status = USBD_FAIL;
+    break;
+    default :
+      usb_status = USBD_FAIL;
+    break;
+  }
+  return usb_status;
+}
+
+/**
+  * @brief  Returns the last transfered packet size.
+  * @param  pdev: Device handle
+  * @param  ep_addr: Endpoint number
+  * @retval Recived Data Size
+  */
+uint32_t USBD_LL_GetRxDataSize(USBD_HandleTypeDef *pdev, uint8_t ep_addr)
+{
+  return HAL_PCD_EP_GetRxCount((PCD_HandleTypeDef*) pdev->pData, ep_addr);
+}
+
+/**
+  * @brief  Delays routine for the USB device library.
+  * @param  Delay: Delay in ms
+  * @retval None
+  */
+void USBD_LL_Delay(uint32_t Delay)
+{
+  HAL_Delay(Delay);
+}
+
+/**
+  * @brief  Static single allocation.
+  * @param  size: Size of allocated memory
+  * @retval None
+  */
+//void *USBD_static_malloc(uint32_t size)
+//{
+//  static uint32_t mem[(sizeof(USBD_CDC_HandleTypeDef)/4)+1];/* On 32-bit boundary */
+//  return mem;
+//}
+
+/**
+  * @brief  Dummy memory free
+  * @param  p: Pointer to allocated  memory address
+  * @retval None
+  */
+void USBD_static_free(void *p)
+{
+
+}
+
+/* USER CODE BEGIN 5 */
+/**
+  * @brief  Configures system clock after wake-up from USB Resume CallBack:
+  *         enable HSI, PLL and select PLL as system clock source.
+  * @retval None
+  */
+//static void SystemClockConfig_Resume(void)
+//{
+//  SystemClock_Config();
+//}
+/* USER CODE END 5 */
+
+/**
+  * @brief Software device connection
+  * @param hpcd: PCD handle
+  * @param state: Connection state (0: disconnected / 1: connected)
+  * @retval None
+  */
+void HAL_PCDEx_SetConnectionState(PCD_HandleTypeDef *hpcd, uint8_t state)
+{
+  /* USER CODE BEGIN 6 */
+  if (state == 1)
+  {
+    /* Configure Low connection state. */
+
+  }
+  else
+  {
+    /* Configure High connection state */
+
+  }
+  /* USER CODE END 6 */
+}
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

midi-dials/Src/usbd_desc.c

@@ -0,0 +1,365 @@
+/**
+  ******************************************************************************
+  * @file           : usbd_desc.c
+  * @version        : v2.0_Cube
+  * @brief          : This file implements the USB device descriptors.
+  ******************************************************************************
+  * This notice applies to any and all portions of this file
+  * that are not between comment pairs USER CODE BEGIN and
+  * USER CODE END. Other portions of this file, whether
+  * inserted by the user or by software development tools
+  * are owned by their respective copyright owners.
+  *
+  * Copyright (c) 2018 STMicroelectronics International N.V.
+  * All rights reserved.
+  *
+  * Redistribution and use in source and binary forms, with or without
+  * modification, are permitted, provided that the following conditions are met:
+  *
+  * 1. Redistribution of source code must retain the above copyright notice,
+  *    this list of conditions and the following disclaimer.
+  * 2. Redistributions in binary form must reproduce the above copyright notice,
+  *    this list of conditions and the following disclaimer in the documentation
+  *    and/or other materials provided with the distribution.
+  * 3. Neither the name of STMicroelectronics nor the names of other
+  *    contributors to this software may be used to endorse or promote products
+  *    derived from this software without specific written permission.
+  * 4. This software, including modifications and/or derivative works of this
+  *    software, must execute solely and exclusively on microcontroller or
+  *    microprocessor devices manufactured by or for STMicroelectronics.
+  * 5. Redistribution and use of this software other than as permitted under
+  *    this license is void and will automatically terminate your rights under
+  *    this license.
+  *
+  * THIS SOFTWARE IS PROVIDED BY STMICROELECTRONICS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS, IMPLIED OR STATUTORY WARRANTIES, INCLUDING, BUT NOT
+  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+  * PARTICULAR PURPOSE AND NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY
+  * RIGHTS ARE DISCLAIMED TO THE FULLEST EXTENT PERMITTED BY LAW. IN NO EVENT
+  * SHALL STMICROELECTRONICS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
+  * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+  * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbd_core.h"
+#include "usbd_desc.h"
+#include "usbd_conf.h"
+
+/* USER CODE BEGIN INCLUDE */
+
+/* USER CODE END INCLUDE */
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macro -------------------------------------------------------------*/
+
+/* USER CODE BEGIN PV */
+/* Private variables ---------------------------------------------------------*/
+
+/* USER CODE END PV */
+
+/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
+  * @{
+  */
+
+/** @addtogroup USBD_DESC
+  * @{
+  */
+
+/** @defgroup USBD_DESC_Private_TypesDefinitions USBD_DESC_Private_TypesDefinitions
+  * @brief Private types.
+  * @{
+  */
+
+/* USER CODE BEGIN PRIVATE_TYPES */
+
+/* USER CODE END PRIVATE_TYPES */
+
+/**
+  * @}
+  */
+
+/** @defgroup USBD_DESC_Private_Defines USBD_DESC_Private_Defines
+  * @brief Private defines.
+  * @{
+  */
+
+/*
+ *************************************************[ATTENTION]************************************************
+ *
+ * VID 0x1209 and PID 0x0001 is experimental IDs from http://pid.codes .
+ * You must get your own IDs, and change to your own IDs in order to avoid conflicting to other USB devices.
+ *
+ ************************************************************************************************************
+*/
+
+#define USBD_VID     0x1209		//MUST BE CHANGED.
+#define USBD_LANGID_STRING     1041
+#define USBD_MANUFACTURER_STRING     "Otter Scientific"
+#define USBD_PID_FS     0x0001	//MUST BE CHANGED.
+#define USBD_PRODUCT_STRING_FS     "MIDI Dials"
+#define USBD_SERIALNUMBER_STRING_FS     "00000000001A"
+#define USBD_CONFIGURATION_STRING_FS     "MIDI Config"
+#define USBD_INTERFACE_STRING_FS     "MIDI Interface"
+
+
+
+/* USER CODE BEGIN PRIVATE_DEFINES */
+
+/* USER CODE END PRIVATE_DEFINES */
+
+/**
+  * @}
+  */
+
+/* USER CODE BEGIN 0 */
+
+/* USER CODE END 0 */
+
+/** @defgroup USBD_DESC_Private_Macros USBD_DESC_Private_Macros
+  * @brief Private macros.
+  * @{
+  */
+
+/* USER CODE BEGIN PRIVATE_MACRO */
+
+/* USER CODE END PRIVATE_MACRO */
+
+/**
+  * @}
+  */
+
+/** @defgroup USBD_DESC_Private_FunctionPrototypes USBD_DESC_Private_FunctionPrototypes
+  * @brief Private functions declaration.
+  * @{
+  */
+
+uint8_t * USBD_FS_DeviceDescriptor(USBD_SpeedTypeDef speed, uint16_t *length);
+uint8_t * USBD_FS_LangIDStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length);
+uint8_t * USBD_FS_ManufacturerStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length);
+uint8_t * USBD_FS_ProductStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length);
+uint8_t * USBD_FS_SerialStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length);
+uint8_t * USBD_FS_ConfigStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length);
+uint8_t * USBD_FS_InterfaceStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length);
+
+#ifdef USB_SUPPORT_USER_STRING_DESC
+uint8_t * USBD_FS_USRStringDesc(USBD_SpeedTypeDef speed, uint8_t idx, uint16_t *length);
+#endif /* USB_SUPPORT_USER_STRING_DESC */
+
+/**
+  * @}
+  */
+
+/** @defgroup USBD_DESC_Private_Variables USBD_DESC_Private_Variables
+  * @brief Private variables.
+  * @{
+  */
+
+USBD_DescriptorsTypeDef FS_Desc =
+{
+  USBD_FS_DeviceDescriptor
+, USBD_FS_LangIDStrDescriptor
+, USBD_FS_ManufacturerStrDescriptor
+, USBD_FS_ProductStrDescriptor
+, USBD_FS_SerialStrDescriptor
+, USBD_FS_ConfigStrDescriptor
+, USBD_FS_InterfaceStrDescriptor
+};
+
+#if defined ( __ICCARM__ ) /* IAR Compiler */
+  #pragma data_alignment=4
+#endif /* defined ( __ICCARM__ ) */
+/** USB standard device descriptor. */
+__ALIGN_BEGIN uint8_t USBD_FS_DeviceDesc[USB_LEN_DEV_DESC] __ALIGN_END =
+{
+  0x12,                       /*bLength */
+  USB_DESC_TYPE_DEVICE,       /*bDescriptorType*/
+  0x00,                       /*bcdUSB */
+  0x02,
+  0x02,                       /*bDeviceClass*/
+  0x02,                       /*bDeviceSubClass*/
+  0x00,                       /*bDeviceProtocol*/
+  USB_MAX_EP0_SIZE,           /*bMaxPacketSize*/
+  LOBYTE(USBD_VID),           /*idVendor*/
+  HIBYTE(USBD_VID),           /*idVendor*/
+  LOBYTE(USBD_PID_FS),        /*idProduct*/
+  HIBYTE(USBD_PID_FS),        /*idProduct*/
+  0x00,                       /*bcdDevice rel. 2.00*/
+  0x02,
+  USBD_IDX_MFC_STR,           /*Index of manufacturer  string*/
+  USBD_IDX_PRODUCT_STR,       /*Index of product string*/
+  USBD_IDX_SERIAL_STR,        /*Index of serial number string*/
+  USBD_MAX_NUM_CONFIGURATION  /*bNumConfigurations*/
+};
+
+/* USB_DeviceDescriptor */
+
+/**
+  * @}
+  */
+
+/** @defgroup USBD_DESC_Private_Variables USBD_DESC_Private_Variables
+  * @brief Private variables.
+  * @{
+  */
+
+#if defined ( __ICCARM__ ) /* IAR Compiler */
+  #pragma data_alignment=4
+#endif /* defined ( __ICCARM__ ) */
+
+/** USB lang indentifier descriptor. */
+__ALIGN_BEGIN uint8_t USBD_LangIDDesc[USB_LEN_LANGID_STR_DESC] __ALIGN_END =
+{
+     USB_LEN_LANGID_STR_DESC,
+     USB_DESC_TYPE_STRING,
+     LOBYTE(USBD_LANGID_STRING),
+     HIBYTE(USBD_LANGID_STRING)
+};
+
+#if defined ( __ICCARM__ ) /* IAR Compiler */
+  #pragma data_alignment=4
+#endif /* defined ( __ICCARM__ ) */
+/* Internal string descriptor. */
+__ALIGN_BEGIN uint8_t USBD_StrDesc[USBD_MAX_STR_DESC_SIZ] __ALIGN_END;
+
+/**
+  * @}
+  */
+
+/** @defgroup USBD_DESC_Private_Functions USBD_DESC_Private_Functions
+  * @brief Private functions.
+  * @{
+  */
+
+/**
+  * @brief  Return the device descriptor
+  * @param  speed : Current device speed
+  * @param  length : Pointer to data length variable
+  * @retval Pointer to descriptor buffer
+  */
+uint8_t * USBD_FS_DeviceDescriptor(USBD_SpeedTypeDef speed, uint16_t *length)
+{
+  *length = sizeof(USBD_FS_DeviceDesc);
+  return USBD_FS_DeviceDesc;
+}
+
+/**
+  * @brief  Return the LangID string descriptor
+  * @param  speed : Current device speed
+  * @param  length : Pointer to data length variable
+  * @retval Pointer to descriptor buffer
+  */
+uint8_t * USBD_FS_LangIDStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length)
+{
+  *length = sizeof(USBD_LangIDDesc);
+  return USBD_LangIDDesc;
+}
+
+/**
+  * @brief  Return the product string descriptor
+  * @param  speed : Current device speed
+  * @param  length : Pointer to data length variable
+  * @retval Pointer to descriptor buffer
+  */
+uint8_t * USBD_FS_ProductStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length)
+{
+  if(speed == 0)
+  {
+    USBD_GetString((uint8_t *)USBD_PRODUCT_STRING_FS, USBD_StrDesc, length);
+  }
+  else
+  {
+    USBD_GetString((uint8_t *)USBD_PRODUCT_STRING_FS, USBD_StrDesc, length);
+  }
+  return USBD_StrDesc;
+}
+
+/**
+  * @brief  Return the manufacturer string descriptor
+  * @param  speed : Current device speed
+  * @param  length : Pointer to data length variable
+  * @retval Pointer to descriptor buffer
+  */
+uint8_t * USBD_FS_ManufacturerStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length)
+{
+  USBD_GetString((uint8_t *)USBD_MANUFACTURER_STRING, USBD_StrDesc, length);
+  return USBD_StrDesc;
+}
+
+/**
+  * @brief  Return the serial number string descriptor
+  * @param  speed : Current device speed
+  * @param  length : Pointer to data length variable
+  * @retval Pointer to descriptor buffer
+  */
+uint8_t * USBD_FS_SerialStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length)
+{
+  if(speed == USBD_SPEED_HIGH)
+  {
+    USBD_GetString((uint8_t *)USBD_SERIALNUMBER_STRING_FS, USBD_StrDesc, length);
+  }
+  else
+  {
+    USBD_GetString((uint8_t *)USBD_SERIALNUMBER_STRING_FS, USBD_StrDesc, length);
+  }
+  return USBD_StrDesc;
+}
+
+/**
+  * @brief  Return the configuration string descriptor
+  * @param  speed : Current device speed
+  * @param  length : Pointer to data length variable
+  * @retval Pointer to descriptor buffer
+  */
+uint8_t * USBD_FS_ConfigStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length)
+{
+  if(speed == USBD_SPEED_HIGH)
+  {
+    USBD_GetString((uint8_t *)USBD_CONFIGURATION_STRING_FS, USBD_StrDesc, length);
+  }
+  else
+  {
+    USBD_GetString((uint8_t *)USBD_CONFIGURATION_STRING_FS, USBD_StrDesc, length);
+  }
+  return USBD_StrDesc;
+}
+
+/**
+  * @brief  Return the interface string descriptor
+  * @param  speed : Current device speed
+  * @param  length : Pointer to data length variable
+  * @retval Pointer to descriptor buffer
+  */
+uint8_t * USBD_FS_InterfaceStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length)
+{
+  if(speed == 0)
+  {
+    USBD_GetString((uint8_t *)USBD_INTERFACE_STRING_FS, USBD_StrDesc, length);
+  }
+  else
+  {
+    USBD_GetString((uint8_t *)USBD_INTERFACE_STRING_FS, USBD_StrDesc, length);
+  }
+  return USBD_StrDesc;
+}
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

midi-dials/Src/usbd_midi_if.c

@@ -0,0 +1,480 @@
+/**
+  ******************************************************************************
+  * @file           : usbd_midi_if.c
+  * @brief          :
+  ******************************************************************************
+
+    (CC at)2016 by D.F.Mac. @TripArts Music
+
+  ******************************************************************************
+
+    Modified by keshikan (www.keshikan.net) 2018
+    The license is (CC BY 4.0), and takes over from original usbd_midi_if.h/c.
+
+    See also original source code page.
+    https://github.com/mimuz/mimuz-tuch/blob/master/STM32/
+
+  ******************************************************************************
+ */
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbd_midi_if.h"
+#include "stm32f0xx_hal.h"
+
+
+// basic midi rx/tx functions
+static uint16_t MIDI_DataRx(uint8_t *msg, uint16_t length);
+static uint16_t MIDI_DataTx(uint8_t *msg, uint16_t length);
+
+// for Cure Series
+#define MIDI_BUFFER_SIZ (512)//FIFO buffer byte size for midi message buffer
+
+RingBufferU8 rbuf_usb_rx[MIDI_OUT_JACK_NUM]; //for input from USB
+RingBufferU8 rbuf_jack_rx[MIDI_IN_JACK_NUM];  //for input from MIDI-IN jack
+
+//for receiving midi data from jack
+MidiAnalysisStatus analyzed_status[MIDI_IN_JACK_NUM];
+MIDIEvent midi_event[MIDI_IN_JACK_NUM];	//received midi data
+
+uint8_t rx_midi_msg[MIDI_IN_JACK_NUM];
+
+
+FUNC_STATUS midiInit()
+{
+	uint32_t i,j;
+
+	for(i=0; i<MIDI_OUT_JACK_NUM; i++){
+		if(BUFFER_SUCCESS != cureRingBufferU8Init(&rbuf_usb_rx[i], MIDI_BUFFER_SIZ))
+		{
+			return FUNC_ERROR;
+		}
+	}
+
+	for(i=0; i<MIDI_IN_JACK_NUM; i++){
+		if(BUFFER_SUCCESS != cureRingBufferU8Init(&rbuf_jack_rx[i], MIDI_BUFFER_SIZ))
+		{
+			return FUNC_ERROR;
+		}
+	}
+
+	//Init RX
+	for(i=0; i<MIDI_IN_JACK_NUM; i++){
+
+		rx_midi_msg[i] = 0x00;
+		analyzed_status[i].data_idx = 0;
+		midi_event[i].length = 0;
+
+		for(j=0; j<MIDI_SENDDATA_MAX; j++){
+			midi_event[i].midi_byte[j] = 0x00;
+		}
+	}
+
+	return FUNC_SUCCESS;
+}
+
+FUNC_STATUS midiGetFromUsbRx(uint8_t cable_num, uint8_t* dat)
+{
+	if(BUFFER_SUCCESS != cureRingBufferU8Dequeue(&rbuf_usb_rx[cable_num], dat))
+	{
+		return FUNC_ERROR;
+	}
+
+	return FUNC_SUCCESS;
+}
+
+FUNC_STATUS midiGetFromJackRx(uint8_t cable_num)
+{
+	if(BUFFER_SUCCESS != cureRingBufferU8Dequeue(&rbuf_jack_rx[cable_num], &rx_midi_msg[cable_num]))
+	{
+		return FUNC_ERROR;
+	}
+
+	return FUNC_SUCCESS;
+}
+
+FUNC_STATUS midiSetFromJackRx(uint8_t cable_num, uint8_t* dat)
+{
+	if(BUFFER_SUCCESS != cureRingBufferU8Enqueue(&rbuf_jack_rx[cable_num], dat))
+	{
+		return FUNC_ERROR;
+	}
+
+	return FUNC_SUCCESS;
+}
+
+
+bool isUsbRxBufEmpty(uint8_t cable_num)
+{
+	if( 0 != _cureRingBufferU8GetUsedSize(&rbuf_usb_rx[cable_num]) ){
+		return false;
+	}
+
+	return true;
+}
+
+bool isJackRxBufEmpty(uint8_t cable_num)
+{
+	if( 0 != _cureRingBufferU8GetUsedSize(&rbuf_jack_rx[cable_num]) ){
+		return false;
+	}
+
+	return true;
+}
+
+bool isRxBufEmpty()
+{
+	uint32_t i;
+
+	for(i=0; i<MIDI_OUT_JACK_NUM; i++){
+		if(0 != _cureRingBufferU8GetUsedSize(&rbuf_usb_rx[i]))
+		{
+			return false;
+		}
+	}
+
+	for(i=0; i<MIDI_IN_JACK_NUM; i++){
+		if(0 != _cureRingBufferU8GetUsedSize(&rbuf_jack_rx[i]))
+		{
+			return false;
+		}
+	}
+	return true;
+}
+
+
+USBD_MIDI_ItfTypeDef USBD_Interface_fops_FS =
+{
+  MIDI_DataRx,
+  MIDI_DataTx
+};
+
+
+static uint16_t MIDI_DataRx(uint8_t *msg, uint16_t length){
+  uint16_t cnt;
+  uint16_t msgs = length / 4;
+  uint16_t chk = length % 4;
+  uint8_t u8b;
+  uint8_t midi_size;
+
+  if(0 != chk)
+  {
+	  return 0;
+  }
+
+  for(uint32_t cnt_msgs = 0; cnt_msgs < msgs; cnt_msgs++){
+
+	  uint8_t cable_num = (msg[0 + 4*cnt_msgs] & 0xF0) >> 4;
+	  uint8_t code_idx_num = msg[0 + 4*cnt_msgs] & 0x0F;
+
+	  switch (code_idx_num) {
+
+	  	  //not defined
+		  case 0x0:
+		  case 0x1:
+			  midi_size = 0;
+			  break;
+
+		  //1byte message
+		  case 0x5:
+		  case 0xF:
+			  midi_size = 1;
+			  break;
+
+		  //2byte message
+		  case 0x2:
+		  case 0x6:
+		  case 0xC:
+		  case 0xD:
+			  midi_size = 2;
+			  break;
+
+		  //3byte message
+		  case 0x3:
+		  case 0x4:
+		  case 0x7:
+		  case 0x8:
+		  case 0x9:
+		  case 0xA:
+		  case 0xB:
+		  case 0xE:
+			  midi_size = 3;
+			  break;
+
+		  default:
+			  midi_size = 0;
+			  break;
+	  }
+
+	  for(cnt = 0;cnt < midi_size;cnt ++){
+		  u8b = *(msg + 4*cnt_msgs + cnt + 1);
+		  cureRingBufferU8Enqueue(&rbuf_usb_rx[cable_num], &u8b);
+	  }
+  }
+
+  return 0;
+}
+
+void sendMidiMessage(uint8_t *msg, uint16_t size){
+  if(size == 4){
+//	APP_Rx_Buffer[0] = msg[0];
+//	APP_Rx_Buffer[1] = msg[1];
+//	APP_Rx_Buffer[2] = msg[2];
+//	APP_Rx_Buffer[3] = msg[3];
+//    USBD_MIDI_SendData(&hUsbDeviceFS, APP_Rx_Buffer, size);
+    MIDI_DataTx(msg, size);
+  }
+}
+
+static uint16_t MIDI_DataTx(uint8_t *msg, uint16_t length){
+  uint32_t i = 0;
+  while (i < length) {
+    APP_Rx_Buffer[APP_Rx_ptr_in] = *(msg + i);
+    APP_Rx_ptr_in++;
+    i++;
+    if (APP_Rx_ptr_in == APP_RX_DATA_SIZE) {
+      APP_Rx_ptr_in = 0;
+    }
+  }
+  return USBD_OK;
+}
+
+bool midiEventIsGenerated(uint8_t cable_num)
+{
+	uint8_t upper_half_byte= (rx_midi_msg[cable_num]) & 0xF0;
+
+	if( upper_half_byte & 0x80 ){//0x80-0xFF:status byte
+
+		switch(upper_half_byte){
+
+			case 0xF0://0xF0-0xFF:system message
+				switch(rx_midi_msg[cable_num]){
+
+					case 0xF0://SysEx Start
+						analyzed_status[cable_num].data_idx = 0;
+						midi_event[cable_num].midi_byte[ analyzed_status[cable_num].data_idx++ ] = rx_midi_msg[cable_num];
+						analyzed_status[cable_num].type = MSG_SYSEX;
+						analyzed_status[cable_num].stat = WAIT_SYSTEM_DATA;
+						break;
+
+					case 0xF7://SysEx End
+						midi_event[cable_num].midi_byte[ analyzed_status[cable_num].data_idx++ ] = rx_midi_msg[cable_num];
+						midi_event[cable_num].length = analyzed_status[cable_num].data_idx;
+						analyzed_status[cable_num].stat = END_ANALYSIS;
+						break;
+
+					case 0xF2://Song Position
+						midi_event[cable_num].midi_byte[0] = rx_midi_msg[cable_num];
+						analyzed_status[cable_num].type = MSG_THREE_BYTE;
+						analyzed_status[cable_num].stat = WAIT_DATA1;
+						break;
+
+					case 0xF1://Time Code
+					case 0xF3://Song Select
+						midi_event[cable_num].midi_byte[0] = rx_midi_msg[cable_num];
+						analyzed_status[cable_num].type = MSG_TWO_BYTE;
+						analyzed_status[cable_num].stat = WAIT_DATA1;
+						break;
+
+					case 0xF4://Undefined
+					case 0xF5://Undefined
+					case 0xF6://Tune request
+					case 0xF8://Timing clock
+					case 0xF9://Undefined
+					case 0xFA://Start
+					case 0xFB://Continue
+					case 0xFC://Stop
+					case 0xFD://Undefined
+					case 0xFE://Active Sensing
+					case 0xFF://Reset
+						midi_event[cable_num].midi_byte[0] = rx_midi_msg[cable_num];
+						midi_event[cable_num].length = 1;
+						analyzed_status[cable_num].type = MSG_ONE_BYTE;
+						analyzed_status[cable_num].stat = END_ANALYSIS;
+						break;
+				}
+				analyzed_status[cable_num].is_system_common = true;
+				break;
+
+			case 0x80://Note Off
+			case 0x90://Note On
+			case 0xA0://Polyphonic key-pressure
+			case 0xB0://ControlChange
+			case 0xE0://PitchBend
+				midi_event[cable_num].midi_byte[0] = rx_midi_msg[cable_num];
+				analyzed_status[cable_num].type = MSG_THREE_BYTE;
+				analyzed_status[cable_num].stat = WAIT_DATA1;
+				analyzed_status[cable_num].is_system_common = false;
+				break;
+
+			case 0xC0://Program Change
+			case 0xD0://Channel pressure
+				midi_event[cable_num].midi_byte[0] = rx_midi_msg[cable_num];
+				analyzed_status[cable_num].type = MSG_TWO_BYTE;
+				analyzed_status[cable_num].stat = WAIT_DATA1;
+				analyzed_status[cable_num].is_system_common = false;
+				break;
+
+			default:
+				analyzed_status[cable_num].type = MSG_NOTHING;
+				analyzed_status[cable_num].stat = START_ANALYSIS;
+				analyzed_status[cable_num].is_system_common = false;
+				break;
+		}
+
+	}else{//0x00-0x7F:data byte
+
+		switch(analyzed_status[cable_num].stat){
+
+			case WAIT_DATA1:
+				midi_event[cable_num].midi_byte[1] = rx_midi_msg[cable_num];
+
+				if(MSG_THREE_BYTE == analyzed_status[cable_num].type ){
+					analyzed_status[cable_num].stat = WAIT_DATA2;
+				}else if( MSG_TWO_BYTE == analyzed_status[cable_num].type ){
+					midi_event[cable_num].length = 2;
+					analyzed_status[cable_num].stat = END_ANALYSIS;
+				}else{
+					analyzed_status[cable_num].stat = START_ANALYSIS;
+				}
+				break;
+
+			case WAIT_DATA2:
+				if(MSG_THREE_BYTE == analyzed_status[cable_num].type ){
+					midi_event[cable_num].midi_byte[2] = rx_midi_msg[cable_num];
+					midi_event[cable_num].length = 3;
+					analyzed_status[cable_num].stat = END_ANALYSIS;
+				}else{
+					analyzed_status[cable_num].stat = START_ANALYSIS;
+				}
+				break;
+
+			case WAIT_SYSTEM_DATA:
+				midi_event[cable_num].midi_byte[ analyzed_status[cable_num].data_idx++ ] = rx_midi_msg[cable_num];
+
+				if(analyzed_status[cable_num].data_idx > (MIDI_SENDDATA_MAX - 1) ){
+					analyzed_status[cable_num].stat = END_ANALYSIS;
+				}
+				break;
+
+			case END_ANALYSIS://running status:When status byte is omitted.
+				midi_event[cable_num].midi_byte[1] = rx_midi_msg[cable_num];
+				if(MSG_THREE_BYTE == analyzed_status[cable_num].type){
+					analyzed_status[cable_num].stat = WAIT_DATA2;
+				}else if(MSG_TWO_BYTE == analyzed_status[cable_num].type){
+					midi_event[cable_num].length = 2;
+					analyzed_status[cable_num].stat = END_ANALYSIS;
+				}
+				break;
+
+			case START_ANALYSIS:
+				break;
+
+			default:
+				break;
+		}
+	}
+
+	if(END_ANALYSIS == analyzed_status[cable_num].stat){
+		return true;
+	}else{
+		return false;
+	}
+
+}
+
+
+void midiGenerateUsbPacket(uint8_t cable_num)
+{
+	uint8_t msg_buf[4] = {0x00,0x00,0x00,0x00};
+	uint32_t cnt_remain=0, cnt_length;
+
+	switch(analyzed_status[cable_num].type){
+
+		case MSG_ONE_BYTE:
+			//byte 0: cable number + code index number
+			msg_buf[0] = (cable_num << 4) + ((midi_event[cable_num].midi_byte[0] & 0xF0) >> 4);
+
+			sendMidiMessage(msg_buf,4);
+			break;
+
+		case MSG_TWO_BYTE:
+		case MSG_THREE_BYTE:
+			//byte 0: cable number + code index number
+			if(analyzed_status[cable_num].is_system_common){
+				msg_buf[0] = (cable_num << 4) + midi_event[cable_num].length;
+			}else{
+				msg_buf[0] = (cable_num << 4) + ((midi_event[cable_num].midi_byte[0] & 0xF0) >> 4);
+			}
+
+			//byte 1-3
+			for(uint32_t i=0; i<midi_event[cable_num].length; i++){
+				msg_buf[i+1] = midi_event[cable_num].midi_byte[i];
+			}
+
+			sendMidiMessage(msg_buf,4);
+			break;
+
+		case MSG_SYSEX:
+			for(cnt_length = 0; cnt_length < midi_event[cable_num].length; cnt_length++){
+				if( 0xF7 !=midi_event[cable_num].midi_byte[cnt_length] ){
+					if(2 == cnt_remain){
+						msg_buf[3] = midi_event[cable_num].midi_byte[cnt_length];
+						msg_buf[0] = (cable_num << 4) + 0x4;	//SysEx starts or continues
+						sendMidiMessage(msg_buf,4);
+					}else{
+						msg_buf[1 + cnt_remain] = midi_event[cable_num].midi_byte[cnt_length];
+					}
+
+
+				}else{
+
+					switch (cnt_remain) {
+						case 0:
+							msg_buf[0] = (cable_num << 4) + 0x5;	//SysEx ends with following single byte
+							msg_buf[1] = 0xF7;
+							msg_buf[2] = msg_buf[3] = 0x00;
+							sendMidiMessage(msg_buf,4);
+							break;
+
+						case 1:
+							msg_buf[0] = (cable_num << 4) + 0x6;	//SysEx ends with following two bytes.
+							msg_buf[2] = 0xF7;
+							msg_buf[3] = 0x00;
+							sendMidiMessage(msg_buf,4);
+							break;
+
+						case 2:
+							msg_buf[0] = (cable_num << 4) + 0x7;	//SysEx ends with following three bytes.
+							msg_buf[3] = 0xF7;
+							sendMidiMessage(msg_buf,4);
+							break;
+						default:
+							break;
+					}
+				}
+
+				cnt_remain++;
+				if(cnt_remain >=3){
+					cnt_remain = 0;
+				}
+			}
+			break;
+
+		default:
+			break;
+	}
+	USBD_MIDI_SendPacket();
+}
+
+void midiProcess(){
+
+	for(uint32_t cable_num=0; cable_num<MIDI_IN_JACK_NUM; cable_num++){
+		while( FUNC_SUCCESS == midiGetFromJackRx(cable_num) ){
+			if( midiEventIsGenerated(cable_num) ){// Generate MIDI event from UART buffer.
+				//Analyze MIDI Message.
+				midiGenerateUsbPacket(cable_num);
+			}
+		}
+	}
+}
+