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56 lines
839 B
56 lines
839 B
#include <common.h>
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#include <stdio.h>
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#include "utils/usart.h"
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#include "utils/timebase.h"
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#include "utils/debounce.h"
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#include "utils/str_utils.h"
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#include "init.h"
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#include "blink.h"
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/** IRQ */
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void USART2_IRQHandler(void)
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{
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// RXIE enables also ORE - must handle ORE.
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if (USART2_SR & USART_SR_ORE) {
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USART2_SR &= ~USART_SR_ORE;
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}
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if (USART2_SR & USART_SR_RXNE) {
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blue_blink();
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// handle incoming char.
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char c = usart_rx_char(USART2);
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// echo
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usart_tx_char(USART2, c);
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USART2_SR ^= USART_SR_RXNE;
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}
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}
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/** Init peripherals; Called by startup script, before main() */
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void SystemInit(void)
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{
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init_clock();
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init_systick();
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init_gpios();
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init_usart();
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init_adc();
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init_dac();
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init_pwm1();
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}
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int main(void)
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{
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usart_tx_string(USART2, "Hello.\n");
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while (1) {
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delay_ms(500);
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green_toggle();
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}
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}
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