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12 years, 6 months ago.

In debugging with uVision, the current line stops automatically.

Hi, I am happy It is possible to debug mbed program.

I debugged this code with CMSIS-DAP in uVision. I started debugging, the current line stops automatically in fopen. I couldn't click both run button and step buttons, so I couldn't continue debugging.

debugging code

#include "mbed.h"
Serial uart(USBTX, USBRX);                  //USB uartSerialSerial uart(USBTX, USBRX);   
DigitalOut myled(LED1);

// ***** local file read *****
bool usbFileRead(char *srcStr, char *readVal);// return 1:mormal, 0:error
LocalFileSystem local("local");             //local file system
short STR_SIZE = 64;

int main() {
    char buffer[STR_SIZE];
    if(usbFileRead((char*)"TEST", buffer))
        uart.printf("true");
    else
        uart.printf("false");
    while(1) {
        myled = 1;
        wait(0.2);
        myled = 0;
        wait(0.2);
    }
}

short BUFFER_SIZE = 64;
bool usbFileRead(char *srcStr, char *readVal)  // return true:normal, false:error
{
    char readBuf[BUFFER_SIZE];
    FILE* fp = fopen("/local/config.txt","r");
        char *p;
    while(fgets(readBuf, BUFFER_SIZE, fp)) {    
        if(*strstr(readBuf, srcStr))                // find srcStr from readBuf
        {                                                   //find srcStr
            p = fgets(readBuf, BUFFER_SIZE, fp);
            strcpy(readVal, p);
            fclose(fp);
            return true;
        } 
    }
    fclose(fp);
    return false;
}

This program runs well in mbed. What should I do to continue debugging?

Thanks,

Question relating to:

Last updated: 30 Apr 2020
CMSIS-DAP, debug, mbed, mbed Interface
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