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Vincent_F's avatar
Vincent_F
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1 year ago

UART gets stuck when enabling IRQ (NIOS II)

Hi, I'm reopening an old post from 2013 that apparently never got a reply. I'm facing the same problem. I have a small NIOS II system (used as a demo for my students) that features a jTAG UART an...
Nios Cpu
tehjingy_Altera's avatar
tehjingy_Altera
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1 year ago

Hi


Did you managed to try the suggested change?


Regards

Jingyang, Teh


  • Vincent_F's avatar
    Vincent_F
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    1 year ago
    Hi Jingyang, Teh,

    I’m currently on vacation and have no access to my computer. I’ll get back to you next week.
    Best regards
    Vincent
  • Vincent_F's avatar
    Vincent_F
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    1 year ago

    Hi,

    If you look carefully at the code, when I call the function "void UART_write(char * out_data, int length)" I do open the UART.

    >> See line fUART=fopen(RFS2_UART_NAME, "w"); where RFS2_UART_NAME defines "/dev/RFS2_UART" in my system.h file.

    I also open the JTAG_UART in the main program, but that's only for stdio operations, and I don't do anything that involves the JTAG_UART interrupt.

    Best regards

    Vincent