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f0 working (one fixme)

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need scan mode upstream?
This commit is contained in:
Karl Palsson 2015-11-03 23:53:42 +00:00
parent c522c29dca
commit 19a85ae45b
6 changed files with 146 additions and 3 deletions
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14
openocd/openocd.stm32f072-disco.cfg Normal file
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@ -0,0 +1,14 @@
source [find interface/stlink-v2.cfg]
set WORKAREASIZE 0x4000
source [find target/stm32f0x.cfg]
# serial of my f072 disco board.
hla_serial "Q?o\x06PgHW#$\x16?"
# no trace on cm0
#tpiu config internal swodump.stm32f4disco.log uart off 168000000
# Uncomment to reset on connect, for grabbing under WFI et al
reset_config srst_only srst_nogate
# reset_config srst_only srst_nogate connect_assert_srst

9
rules.stm32f0.mk Normal file
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@ -0,0 +1,9 @@
LDSCRIPT = $(OPENCM3_DIR)/lib/stm32/f0/stm32f07xzb.ld
OPENCM3_LIB = opencm3_stm32f0
OPENCM3_DEFS = -DSTM32F0
#FP_FLAGS ?= -mfloat-abi=hard -mfpu=fpv4-sp-d16
ARCH_FLAGS = -mthumb -mcpu=cortex-m0 $(FP_FLAGS)
#OOCD_INTERFACE = stlink-v2
#OOCD_TARGET = stm32f4x
OOCD_FILE = openocd.stm32f072disco.cfg

34
shared/usart_stdio.c Normal file
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@ -0,0 +1,34 @@
/*
* support for stdio output to a usart
* Karl Palsson, 2015 <karlp@tweak.net.au>
*/
#include <errno.h>
#include <stdio.h>
#include <unistd.h>
#include <libopencm3/stm32/usart.h>
#ifndef STDIO_USART
#define STDIO_USART USART1
#endif
int _write(int file, char *ptr, int len);
int _write(int file, char *ptr, int len)
{
int i;
if (file == STDOUT_FILENO || file == STDERR_FILENO) {
for (i = 0; i < len; i++) {
if (ptr[i] == '\n') {
usart_send_blocking(STDIO_USART, '\r');
}
usart_send_blocking(STDIO_USART, ptr[i]);
}
return i;
}
errno = EIO;
return -1;
}

19
tests/adc-power/Makefile.stm32f072-disco Normal file
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@ -0,0 +1,19 @@
BOARD = stm32f072-disco
PROJECT = adc-power-$(BOARD)
BUILD_DIR = bin-$(BOARD)
SHARED_DIR = ../../shared
CFILES = main-$(BOARD).c
CFILES += adc-power.c
# No trace on cm0!
#CFILES += trace.c trace_stdio.c
CFILES += usart_stdio.c
VPATH += $(SHARED_DIR)
INCLUDES += $(patsubst %,-I%, . $(SHARED_DIR))
OPENCM3_DIR=../../libopencm3
include ../../rules.stm32f0.mk
include ../../rules.mk

6
tests/adc-power/adc-power.c
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@ -22,7 +22,7 @@
// Still have some bad shit to deal with...
#if defined(STM32F0)
#define SEPARATE_ADC_SAMPLING 0
#define SAMPLE_TIME_BASIC ADC_SMPR_SMP_239DOT5
#define SAMPLE_TIME_BASIC ADC_SMPR_SMP_239DOT5 // 4usec or more for tempsensor
#elif defined(STM32F3)
#define SAMPLE_TIME_BASIC ADC_SMPR1_SMP_181DOT5CYC
#define SAMPLE_TIME_TEMP ADC_SMPR1_SMP_601DOT5CYC // 2.2usecs or more
@ -67,7 +67,7 @@ void adc_power_init(void)
adc_enable_scan_mode(ADC1);
ADC_CR2 |= ADC_CR2_EOCS; // FIXME
#else
adc_disable_scan_mode(ADC1);
// FIXME - f0! adc_disable_scan_mode(ADC1);
#endif
#endif
@ -150,4 +150,4 @@ void adc_power_task_down()
adc_power_off(ADC1);
unsigned int td = TIM_CNT(TIMER);
printf("toff in: %u\n", td);
}
}

67
tests/adc-power/main-stm32f072-disco.c Normal file
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@ -0,0 +1,67 @@
/*
* Copyright (C) 2015 Karl Palsson <karlp@tweak.net.au>
*/
#include <libopencm3/cm3/nvic.h>
#include <libopencm3/stm32/crs.h>
#include <libopencm3/stm32/gpio.h>
#include <libopencm3/stm32/rcc.h>
#include <libopencm3/stm32/usart.h>
#include <stdio.h>
#include "adc-power.h"
static
void setup_usart(void)
{
uint32_t dev = USART1;
rcc_periph_clock_enable(RCC_USART1);
rcc_periph_clock_enable(RCC_GPIOA);
gpio_mode_setup(GPIOA, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO9);
gpio_set_af(GPIOA, GPIO_AF1, GPIO9);
usart_set_baudrate(dev, 115200);
usart_set_databits(dev, 8);
usart_set_parity(dev, USART_PARITY_NONE);
usart_set_stopbits(dev, USART_CR2_STOP_1_0BIT);
usart_set_mode(dev, USART_MODE_TX);
usart_set_flow_control(dev, USART_FLOWCONTROL_NONE);
/* Finally enable the USART. */
usart_enable(dev);
}
int main(void)
{
int i;
rcc_clock_setup_in_hsi48_out_48mhz();
setup_usart();
/* LED on for boot progress */
rcc_periph_clock_enable(RCC_GPIOC);
gpio_mode_setup(GPIOC, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, GPIO7);
gpio_set(GPIOC, GPIO7);
printf("hi guys!\n");
rcc_periph_clock_enable(RCC_GPIOA);
gpio_mode_setup(GPIOA, GPIO_MODE_ANALOG, GPIO_PUPD_NONE, GPIO1);
gpio_mode_setup(GPIOA, GPIO_MODE_ANALOG, GPIO_PUPD_NONE, GPIO5);
adc_power_init();
while (1) {
adc_power_task_up();
gpio_toggle(GPIOC, GPIO7);
for (i = 0; i < 0x100000; i++) { /* Wait a bit. */
__asm__("NOP");
}
printf("tick...\n");
adc_power_task_down();
gpio_toggle(GPIOC, GPIO7);
for (i = 0; i < 0x100000; i++) { /* Wait a bit. */
__asm__("NOP");
}
}
}