mirror of
https://github.com/eddyem/stm32samples.git
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114 lines
3.4 KiB
C
114 lines
3.4 KiB
C
/*
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* This file is part of the fx3u project.
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* Copyright 2024 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 "adc.h"
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#include "can.h"
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#include "canproto.h"
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#include "flash.h"
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#include "hardware.h"
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#include "modbusproto.h"
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#include "modbusrtu.h"
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#include "proto.h"
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#include "strfunc.h"
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volatile uint32_t Tms = 0;
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/* Called when systick fires */
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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 parsemodbus(){
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if(the_conf.modbusID != MODBUS_MASTER_ID){ // slave
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modbus_request req;
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if(1 == modbus_get_request(&req))
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parse_modbus_request(&req);
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}else{ // master
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modbus_response res;
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if(1 == modbus_get_response(&res))
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parse_modbus_response(&res);
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}
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}
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int main(void){
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uint32_t lastT = 0;
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CAN_message *can_mesg;
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StartHSE();
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SysTick_Config(72000);
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flashstorage_init();
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gpio_setup(); // should be run before other peripherial setup
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adc_setup();
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usart_setup(the_conf.usartspeed);
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CAN_setup(the_conf.CANspeed);
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modbus_setup(the_conf.modbusspeed);
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#ifndef EBUG
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iwdg_setup();
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#endif
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usart_send("START\n");
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if(RCC->CSR & RCC_CSR_IWDGRSTF){ // watchdog reset occured
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usart_send("IWDGRSTF=1\n");
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}
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if(RCC->CSR & RCC_CSR_SFTRSTF){ // software reset occured
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usart_send("SFTRSTF=1\n");
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}
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if(RCC->CSR & RCC_CSR_PORRSTF){ // POR/RDR
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usart_send("PORRSTF=1\n");
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}
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if(RCC->CSR & RCC_CSR_PINRSTF){ // reset by pin NRST
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usart_send("PINRSTF=1\n");
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}
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RCC->CSR |= RCC_CSR_RMVF; // remove reset flags
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while (1){
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IWDG->KR = IWDG_REFRESH; // refresh watchdog
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if(Tms - lastT > 499){ // throw out short messages twice per second
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usart_transmit();
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lastT = Tms;
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}
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proc_esw();
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CAN_proc();
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while((can_mesg = CAN_messagebuf_pop())){
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DBG("got CAN message\n");
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IWDG->KR = IWDG_REFRESH;
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// run command for my or broadcast ID
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if(can_mesg->ID == the_conf.CANIDin || can_mesg->ID == 0)
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parseCANcommand(can_mesg);
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if(flags.can_monitor){
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lastT = Tms;
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if(!lastT) lastT = 1;
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uint8_t len = can_mesg->length;
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printu(Tms);
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usart_send(" #");
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printuhex(can_mesg->ID);
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for(uint8_t ctr = 0; ctr < len; ++ctr){
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usart_putchar(' ');
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printuhex(can_mesg->data[ctr]);
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}
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usart_putchar('\n');
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}
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}
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char *str;
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int g = usart_getline(&str);
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if(g < 0) usart_send("USART IN buffer overflow!\n");
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else if(g > 0) cmd_parser(str);
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parsemodbus();
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}
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return 0;
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}
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