67 lines
1.5 KiB
C
67 lines
1.5 KiB
C
/*
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* Copyright (C) 2015 Karl Palsson <karlp@tweak.net.au>
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*/
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#include <libopencm3/cm3/nvic.h>
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#include <libopencm3/stm32/crs.h>
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#include <libopencm3/stm32/gpio.h>
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#include <libopencm3/stm32/rcc.h>
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#include <libopencm3/stm32/usart.h>
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#include <stdio.h>
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#include "adc-power.h"
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static
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void setup_usart(void)
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{
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uint32_t dev = USART1;
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rcc_periph_clock_enable(RCC_USART1);
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rcc_periph_clock_enable(RCC_GPIOA);
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gpio_mode_setup(GPIOA, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO9);
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gpio_set_af(GPIOA, GPIO_AF1, GPIO9);
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usart_set_baudrate(dev, 115200);
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usart_set_databits(dev, 8);
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usart_set_parity(dev, USART_PARITY_NONE);
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usart_set_stopbits(dev, USART_CR2_STOPBITS_1);
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usart_set_mode(dev, USART_MODE_TX);
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usart_set_flow_control(dev, USART_FLOWCONTROL_NONE);
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/* Finally enable the USART. */
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usart_enable(dev);
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}
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int main(void)
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{
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int i;
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rcc_clock_setup_in_hsi48_out_48mhz();
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setup_usart();
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/* LED on for boot progress */
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rcc_periph_clock_enable(RCC_GPIOC);
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gpio_mode_setup(GPIOC, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, GPIO7);
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gpio_set(GPIOC, GPIO7);
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printf("hi guys!\n");
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rcc_periph_clock_enable(RCC_GPIOA);
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gpio_mode_setup(GPIOA, GPIO_MODE_ANALOG, GPIO_PUPD_NONE, GPIO1);
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gpio_mode_setup(GPIOA, GPIO_MODE_ANALOG, GPIO_PUPD_NONE, GPIO5);
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adc_power_init();
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while (1) {
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adc_power_task_up();
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gpio_toggle(GPIOC, GPIO7);
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for (i = 0; i < 0x100000; i++) { /* Wait a bit. */
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__asm__("NOP");
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}
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printf("tick...\n");
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adc_power_task_down();
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gpio_toggle(GPIOC, GPIO7);
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for (i = 0; i < 0x100000; i++) { /* Wait a bit. */
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__asm__("NOP");
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}
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}
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}
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