mirror of
https://github.com/eddyem/stm32samples.git
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90 lines
3.1 KiB
C
90 lines
3.1 KiB
C
/*
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* This file is part of the pl2303 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 "hardware.h"
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#include "proto.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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const char *test = "123456789A123456789B123456789C123456789D123456789E123456789F123456789G123456789H123456789I123456789J123456789K123456789L123456789M123456789N123456789O123456789P123456789Q123456789R123456789S123456789T123456789U123456789V123456789W123456789X123456789Y\n"
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"123456789A123456789B123456789C123456789D123456789E123456789F123456789G123456789H123456789I123456789J123456789K123456789L123456789M123456789N123456789O123456789P123456789Q123456789R123456789S123456789T123456789U123456789V123456789W123456789X123456789Y\n";
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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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int hse = 0;
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USBPU_OFF();
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if(StartHSE()){
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hse = 1;
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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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hw_setup();
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usart_setup();
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USB_setup();
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USBPU_ON();
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if(hse) usart_send("Ready @ HSE");
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else usart_send("Ready @ HSI");
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usart_send(", CFGR="); usart_send(u2hexstr(RCC->CFGR));
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usart_send(", CR="); usart_send(u2hexstr(RCC->CR));
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usart_send(", SysFreq="); usart_send(u2str(SysFreq)); usart_putchar('\n');
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uint32_t ctr = Tms;
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while(1){
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if(Tms - ctr > 499){
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ctr = Tms;
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pin_toggle(GPIOB, 1 << 1 | 1 << 0); // toggle LED @ PB0
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}
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if(bufovr){
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bufovr = 0;
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usart_send("bufovr\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 = parse_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: USB buffer overflow or string was too long\n");
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else if(l){
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usart_send("Get by USB ");
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usart_send(u2str(l)); usart_send(" bytes:");
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usart_send(inbuff); usart_putchar('\n');
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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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if(starttest){
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USB_sendstr(test);
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if(0 == --starttest){
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#define SENDBOTH(x) do{char *_ = x; usart_send(_); USB_sendstr(_);}while(0)
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SENDBOTH("ENDT=");
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SENDBOTH(u2str(Tms));
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usart_putchar('\n'); USB_putbyte('\n');
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}
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}
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}
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}
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