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ZedBoard Hardware Design UARTlite and output issues
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Related

UARTlite and output issues

Former Member
Former Member over 11 years ago

Hello all,
I am trying to implement a UARTlite to eventually connect to a PMOD serial port connector. At this point, I would just like to make a system wrapper and block diagram that work when I make a hello world program for them in SDK. It seems that when I add the UART, modify the wrapper and then synthesize/implement/export, make a bsp and then a hello world program, I can't see the output on any of the COM ports, taking care to set the right baud rate.

If anyone has tips as to what precisely happens when I enter a print command, and why it goes out which COM port when, I would appreciate an explanation.

Also if anyone has experienced this or similar problems with losing and restoring STDIO because of a uart, lite or otherwise, I would like to hear your experience and what you did to bring back stdio.

-Rob

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  • Former Member
    0 Former Member over 11 years ago

    When you implement a 'typical' system with one UART, using the ps7_uart_1 connected to the USB-UART converter, this is set as the STDIO port in the BSP. If you add ps7_uart_0 or another UART the STDIO setting in the BSP will change. In the SDK you can right click on your BSP folder in the Project Explorer pane to the left and select Board Support Package Settings. There you can select the 'standalone' configuration tab and observe/control the port set as the STDIO.

     

    -Gary

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  • Former Member
    0 Former Member over 10 years ago in reply to Former Member

    This worked perfectly, thank you!

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