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/*
* 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_STOPBITS_1);
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");
}
}
}
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