Jean-Paul PETILLON / Mbed OS test_usTimer

snippet to assess microsecond ticker reading function: uint32_t t = us_ticker_read();

main.cpp

Committer:
JPPetillon
Date:
2020-01-24
Revision:
0:677f08c93544

File content as of revision 0:677f08c93544:

//**
  *  test_usTimer: test of us_ticker_read() function
  */

#include "mbed.h"

int main() {
    // ensure that data is sent to serial on a char-per-char basis, otherwise ..
    setbuf(stdout, NULL); // .. it is sent on CR/LF or on buffer full
    printf("\033[2J"); // clear screen
    printf("*** Test of microsecond ticker reading [ us_ticker_read() ] ***\r\n");
    printf("    Displays delta between 2 readings seperated by 'wait(1);'\r\n\r\n");
    
    while(1) {
        uint32_t t0 = us_ticker_read();
        wait(1);
        uint32_t t1 = us_ticker_read();
        printf("\r");
        wait(0.2);
        printf("%d", t1 - t0);
    }
}