mirror of
https://github.com/eddyem/stm32samples.git
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39 lines
858 B
C
39 lines
858 B
C
#include "hardware.h"
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#include "proto.h"
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#include "usb_dev.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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int main(void){
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char inbuff[MAXSTRLEN+1];
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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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hw_setup();
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USBPU_OFF();
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USB_setup();
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uint32_t ctr = Tms;
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USBPU_ON();
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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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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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const char *ans = parse_cmd(inbuff);
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if(ans) USB_sendstr(ans);
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}
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}
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}
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