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evm8148 won't boot out of the box

Ed Meinelt


Hi, I have an EVM8148 and I cannot get it to boot using the SD card. I went through the quick start pdf and confirmed that all of the switches were set correctly and, when I power the board, only 'C' comes out the 8148 uart. The other UART has the power chip data displayed and it looks correct as far as I can tell. I am in the process of setting up a Ubuntu laptop for ethernet boot but I wanted to confirm that the board would boot standalone before adding the NFS boot variables.

 

Thanks,

Ed

  • 0
    Prodigy 210 points

    Hi Ed,

    Please try for below settings

    For SD boot set up, configure S1
    switches 1, 2, 3, 5, 8 = ON; all
    other switches OFF.

    Regards,

    Vijayvithal Onkar

  • 0 in reply to Vijayvithal Onkar

    Thanks for the fast response, still nothing, only 'C' from the 8148 UART. There seem to be 6 'C's output but that is all.

    Any other ideas?

    Ed

     

  • 0 in reply to Ed Meinelt
    Guru 31670 points

    Ed,

    'C' characters are sent as part of UART boot mode. Can you try booting in UART mode first and see whether the board boots up file. From there you can flash to NAND and try to boot from NAND also.

  • 0 in reply to Renjith Thomas

    Thanks for the suggestion.

    I ended up building an SD card from scratch and the EVM boots using it without issue now. Since the SD card is the primary boot method for our product, my boss felt that the time spent debugging using other boot methods was not as important as the obvious next step, creating the SD card from scratch. I have partitioned another card and copied the data from the card delivered and the copy will not boot either, still shows 'C' on the UART output. I am moving on to the development of our application now that the EVM will boot and appears on the network as needed.

     

    Thanks again,

    Ed