mirror of
https://github.com/eddyem/stm32samples.git
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64 lines
1.7 KiB
C
64 lines
1.7 KiB
C
/*
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* This file is part of the shutter 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 "hardware.h"
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#include "proto.h"
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#include "shutter.h"
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#include "usb.h"
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#define MAXSTRLEN RBINSZ
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// eash ERRPERIOD ms show error message if SHTR_FB is low
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#define ERRPERIOD 499
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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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int main(void){
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char inbuff[MAXSTRLEN+1];
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StartHSE();
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hw_setup();
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SysTick_Config(72000);
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USBPU_OFF();
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hw_setup();
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flashstorage_init();
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USB_setup();
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USBPU_ON();
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close_shutter();
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uint32_t Terr = Tms + 2*ERRPERIOD;
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while(1){
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IWDG->KR = IWDG_REFRESH; // refresh watchdog
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if(shutterstate == SHUTTER_ERROR && Tms - Terr > ERRPERIOD){
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USB_sendstr("shutter=error\n");
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Terr = Tms;
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}
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int l = USB_receivestr(inbuff, MAXSTRLEN);
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if(l < 0) USB_sendstr("usb=error\n");
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else if(l){
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const char *ans = parse_cmd(inbuff);
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if(ans) USB_sendstr(ans);
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}
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process_shutter();
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}
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}
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