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Thread: fopen in DAvE 4.3 (erno = 88) Socket operation on non-socket

  1. #1
    Beginner Beginner alanblu is on a distinguished road
    Join Date
    Sep 2017

    fopen in DAvE 4.3 (erno = 88) Socket operation on non-socket

    Hello everyone,

    I'm working with a XMC 4700, I'm trying to use the fopen() as it follows:

    const char* pFileName = "SOMETHING.BIN";

    FILE* fp = fopen(pFileName, "w");

    char * cadena = strerror(errno);

    Instead of a direction, the value a I get from fp = 0, from cadena = "Function not implemented" and from errno = 88 (Socket operation on non-socket).

    I don't know what I'm doing wrong heir, so I ask for your help.

    I thank you in advance.

    Best regards


  2. #2

    Infineon Employee
    Infineon Employee
    jferreira will become famous soon enough
    Join Date
    Oct 2012
    Hi Alan,

    fopen will not work, it is a posix call which is not fully implemented in the c library (newlib).
    Newlib requires an external implementation of system call open (a stub), which it is not provided since we do not know on which media you want to open a file.
    I would recommend you to use the FatFS on the SDMMC (sdcard).

    The views expressed here are my personal opinions, have not been reviewed or authorized by Infineon and do not necessarily represent the views of Infineon.

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