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Getting FileSystem example working without ULINK

Ashok prajapati

Hello,

I am trying FileSystem example on FRDM K64F. However I can't get it working without ULINK. It says I need it in order to get it working. Is there any work around? Can I use serial port instead to INPUT/OUTPUT commands. Any help will be appreciated! I just tried a simple printf but can't get it out to serial port or debug printf viewer.

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  • 0 in reply to Ashok prajapati

    Thanks again. I was able to figure out. I had to change to UART0.
    Now I can see IN/OUT but I have issue in INPUT. It doesn't flush the characters on ENTER.
    SO next time take last character entered. Below is my getc function and I use scanf to take string in.

    int fgetc(FILE *f) { int ch; ch = stdin_getchar(); fflush(stdin); stdout_putchar(ch); fflush(stdin); return ch;
    }

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  • 0 in reply to Ashok prajapati

    Thanks again. I was able to figure out. I had to change to UART0.
    Now I can see IN/OUT but I have issue in INPUT. It doesn't flush the characters on ENTER.
    SO next time take last character entered. Below is my getc function and I use scanf to take string in.

    int fgetc(FILE *f) { int ch; ch = stdin_getchar(); fflush(stdin); stdout_putchar(ch); fflush(stdin); return ch;
    }

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  • 0 in reply to Ashok prajapati

    Thanks again. What I found is it only happens if in debug mode.
    If I take out of debug mode and connect board through serial,
    then is no issue at all. I am using CMSIS-DAP as a debugger.
    As I said issue is only with input. I have core clock frequency
    set to 120MHz. Operating system is set to RTX Kernel.
    Do I need to do some other debug setting to avoid this mis-behavior?