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Altera_Forum's avatar
Altera_Forum
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12 years ago

How to communicate with Nios using JTAG UART module.

Hi All,

I'd like to communicate with a nios system using a JTAG uart module, but I don't know which functions and libraries I have to use in nios C-program..

I have designed a system to glow the LED's depending on data sent from console.

printf() can be used to send data to the console. But i couldn't find any function which is similar to scanf() which reads data from console.

I have built my system using Qsys, now i'am writing a software application in C to read data from console and give it to the display.

please help.

2 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    12 years ago

    It all depends on which OS you are running on the Nios II

    If you're running the basic HAL then if I remember right getchar() is the function you should be calling.