mirror of
https://github.com/eddyem/stm32samples.git
synced 2025-12-06 18:55:13 +03:00
79 lines
2.0 KiB
C
79 lines
2.0 KiB
C
/*
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* This file is part of the canonmanage project.
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* Copyright 2022 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 "canon.h"
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#include "flash.h"
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#include "hardware.h"
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#include "proto.h"
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#include "spi.h"
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#include "usb.h"
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#define USBBUFSZ 127
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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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// usb getline
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char *get_USB(){
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static char tmpbuf[USBBUFSZ+1], *curptr = tmpbuf;
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static int rest = USBBUFSZ;
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uint8_t x = USB_receive(curptr);
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if(!x) return NULL;
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curptr[x] = 0;
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if(curptr[x-1] == '\n'){
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curptr = tmpbuf;
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rest = USBBUFSZ;
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return tmpbuf;
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}
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curptr += x; rest -= x;
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if(rest <= 0){ // buffer overflow
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curptr = tmpbuf;
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rest = USBBUFSZ;
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}
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return NULL;
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}
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int main(void){
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sysreset();
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StartHSE();
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SysTick_Config(72000);
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flashstorage_init();
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hw_setup();
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if(ISUSB()) USB_setup();
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else CAN_setup(the_conf.canspeed, the_conf.canID);
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spi_setup();
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uint32_t SPIctr = Tms;
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while(1){
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IWDG->KR = IWDG_REFRESH;
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char *txt = NULL;
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usb_proc();
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txt = get_USB();
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const char *ans = parse_cmd(txt); // call it even for NULL (if `flood` is running)
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if(ans) USB_send(ans);
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if(Tms - SPIctr > CANONPROC_INTERVAL){ // not more than once per 10ms
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SPIctr = Tms;
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canon_proc();
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}
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}
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}
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