mirror of
https://github.com/eddyem/stm32samples.git
synced 2025-12-06 18:55:13 +03:00
53 lines
1.4 KiB
C
53 lines
1.4 KiB
C
/*
|
|
* This file is part of the F303usart project.
|
|
* Copyright 2021 Edward V. Emelianov <edward.emelianoff@gmail.com>.
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "stm32f3.h"
|
|
#include "hardware.h"
|
|
#include "usart.h"
|
|
|
|
|
|
volatile uint32_t Tms = 0;
|
|
|
|
void sys_tick_handler(void){
|
|
++Tms;
|
|
}
|
|
|
|
int main(void){
|
|
if(!StartHSE()) StartHSI();
|
|
SysTick_Config((uint32_t)72000); // 1ms
|
|
hw_setup();
|
|
usart_setup();
|
|
uint32_t ctr = Tms;
|
|
while(1){
|
|
if(Tms - ctr > 499){
|
|
ctr = Tms;
|
|
pin_toggle(GPIOB, 1 << 1 | 1 << 0); // toggle LED @ PB0
|
|
}
|
|
if(bufovr){
|
|
bufovr = 0;
|
|
usart_send("bufovr\n");
|
|
}
|
|
char *txt = NULL;
|
|
if(usart_getline(&txt)){
|
|
usart_send("Get by USART1: ");
|
|
usart_send(txt);
|
|
usart_putchar('\n');
|
|
}
|
|
}
|
|
}
|