mirror of
https://github.com/eddyem/stm32samples.git
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103 lines
3.0 KiB
C
103 lines
3.0 KiB
C
/*
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* This file is part of the canbus4bta project.
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* Copyright 2023 Edward V. Emelianov <edward.emelianoff@gmail.com>.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "can.h"
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#include "flash.h"
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#include "gpio.h"
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#include "hardware.h"
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#include "textfunctions.h"
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#include "usart.h"
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#include "usb.h"
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#define MAXSTRLEN RBINSZ
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volatile uint32_t Tms = 0;
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void sys_tick_handler(void){
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++Tms;
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}
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TRUE_INLINE void showCANmessages(){
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CAN_message *can_mesg = NULL;
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while((can_mesg = CAN_messagebuf_pop())){
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IWDG->KR = IWDG_REFRESH;
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printu(Tms);
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USB_sendstr(" #");
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printuhex(can_mesg->ID);
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for(int ctr = 0; ctr < can_mesg->length; ++ctr){
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USB_putbyte(' ');
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printuhex(can_mesg->data[ctr]);
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}
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newline();
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}
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}
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int main(void){
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char inbuff[MAXSTRLEN+1];
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USBPU_OFF();
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if(StartHSE()){
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SysTick_Config((uint32_t)72000); // 1ms
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}else{
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StartHSI();
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SysTick_Config((uint32_t)48000); // 1ms
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}
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flashstorage_init();
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hw_setup();
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// getSwitches() and set module role & CAN ID
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CAN_setup(the_conf.CANspeed);
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USBPU_ON();
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while(1){
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IWDG->KR = IWDG_REFRESH;
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CAN_proc();
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CAN_status stat = CAN_get_status();
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if(stat == CAN_FIFO_OVERRUN){
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USB_sendstr("CAN bus fifo overrun occured!\n");
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// TODO: buzzer short
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}else if(stat == CAN_ERR){
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// TODO: buzzer errors
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CAN_reinit(0);
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}
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if(cansniffer) showCANmessages();
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/*if(bufovr){
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bufovr = 0;
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USB_sendstr("error=uartoverflow\n");
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}*/
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char *txt = NULL;
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if(usart_getline(&txt)){
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const char *ans = run_text_cmd(txt);
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if(ans) usart_send(ans);
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}
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int l = USB_receivestr(inbuff, MAXSTRLEN);
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if(l < 0) USB_sendstr("error=usboverflow\n");
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else if(l){
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const char *ans = run_text_cmd(inbuff);
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if(ans) USB_sendstr(ans);
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}
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ESW_process();
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static uint8_t oldswitches[2] = {0};
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for(int i = 0; i < 2; ++i){
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uint8_t new = getESW(i);
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if(oldswitches[i] != new){
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oldswitches[i] = new;
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USB_sendstr("ESW changed @"); printu(Tms);
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USB_sendstr(" to "); printuhex(new); newline();
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}
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}
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}
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}
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