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Altera_Forum's avatar
Altera_Forum
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14 years ago

Communication with NIOS2 over USB

Hi Everybody,

Description:

I want to develop a simple terminal application which can communicate with NIOS2 over Jtag UART (USB Blaster). The terminal-app will be used to transfer a Matlab generated data file to NIOS2 and also to read out data from the FPGA after processing. The terminal-app will also configure the application running on NIOS2 before providing data file. I cannot use SystemConsol. Further, I cannot use a standard UART because the Stratix IV GX development board does not have an embedded UART connector (e.g., RS-232) to connect the PC. Hence, the only way to communicate with the board from the PC is over the Jtag UART (USB blaster).

Question:

1. How to redirect the USB port from NIOS2 IDE to Matlab GUI?

2. An easiest solution to transfer the Matlab generated file to the NIOS2?

I am thankful for your help in advance.

Regards,

Warraich

1 Reply

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

    I don't know of any standard Comm applications that speak with the talk with the JTAG UART in the nios processor except the Nios Console app. (I may be wrong)

    I would just tap on a simple usb-serial baord like this one:

    http://www.sparkfun.com/products/718

    This gives your computer a standard usb-serial converter and only requires a few wires to hook it up to some GPIO's available on your board.

    This way it also looks like a standard USB Serial port on your computer.

    Pete