Forum Discussion

Bar's avatar
Bar
Icon for New Contributor rankNew Contributor
3 years ago
Solved

close or change dynamicly the stdout in arria 10

Hello. I want to block printf to my stdout driver which point to JTAG_UART set in the BSP editor. I try several options int file_dsc; file_dsc = open("/dev/jtag_uart", O_RDONLY); this way I was ...
  • KellyJialin_Goh's avatar
    KellyJialin_Goh
    3 years ago

    Hi,

    I don't think we have any functions for this as usually, we would want to avoid printf blocking to the output terminal.

    Hope this clarifies your doubts.


    Thanks.


    Best,

    Kelly


KellyJialin_Goh's avatar
KellyJialin_Goh
Icon for Frequent Contributor rankFrequent Contributor
3 years ago

Hi,

Greetings and welcome to Intel's forum.


I assume you mean to stop the printf to stdout driver for jtag_uart. I will attach a screenshot.


However, you are unable to change the driver of stdout from JTAG_UART to NONE and back during run time.


Thank you.


Regards,

Kelly


  • KellyJialin_Goh's avatar
    KellyJialin_Goh
    Icon for Frequent Contributor rankFrequent Contributor
    3 years ago

    Hi,

    Attached is a screenshot to stop printf to stdout driver for jtag_uart by choosing none.

    Thank you.

    Regards,

    Kelly

    • Bar's avatar
      Bar
      Icon for New Contributor rankNew Contributor
      3 years ago

      Thanks Kelly.

      The setting I know. but if I want to stop printing while I run why the close() (as in NIOS command), or fclose() (as in standart C) doesn't stop the printing (no metter which is the stdout? Is there onther command that I can use for stoping printng?

      Regards

      Bar.