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AM625: am6254 spi demo

Shine
Genius 13655 points
Part Number: AM625


Hello Champs,

1. Customer wanted to realize IPC function.  He used the mcspi_performance_8bit demo in mcu_plus_sdk_am62x_08_04_00_16 and replaced the new built am62-mcu-m4f0_0-fw file in /lib/firmware/, the test result is that the received data are not the same to transmitted data. It prompted below message. 

2. He tested another mcspi_loopback demo, it works. After modifying it to external loopback, it still works.


Thanks
Rgds
Shine

  • 0
    TI__Mastermind 48867 points

    Hi Shine,

    I am assuming you are talking about mcspi performance 8 bit?

    Have you opted for MCU or Main Domain SPI peripheral?

    Please confirm on the above, so that I can proceed looking into the same.

    Regards,

    Vaibhav

  • 0 in reply to Vaibhav Kumar
    TI__Genius 13655 points

    Hi Vaibhav,

    Thanks for your support. 

    1. Customer tested the mcspi performance 8 bit demo.

    2. He tested the MCU pins and didn't modify the example.syscfg file. He tested the mcspi_loopback, both the internal loopback and external loopback(modify the example.syscfg ) work correctly which means the hardware is OK.



    Thanks
    Rgds
    Shine

  • 0 in reply to Shine
    TI__Mastermind 48867 points

    Hi Shine,

    I have recreated your issue. I am also getting the same output as yours and I see it says, "Data Mismatch at offset 1".


    I am working on it, and I will come up with a fix to it. (Please allow me sometime for the same, as I will debug and try to find the problem at the granular level)

    Could you also answer the following:

    1. Which core are you using, is it M4 or R5? 

    2. Is it FreeRtos or Baremetal?

    Thanks & Regards,

    Vaibhav

  • 0 in reply to Vaibhav Kumar
    TI__Genius 13655 points

    Hi Vaibhav,

    Thank you very much.

    Vaibhav Kumar said:
    1. Which core are you using, is it M4 or R5? 

    Customer is using M4, TI demo without modifying.


    Vaibhav Kumar said:
    2. Is it FreeRtos or Baremetal?

    Customer tested on both FreeRtos and Baremetal, the results are the same. 

  • 0 in reply to Shine
    TI__Mastermind 48867 points

    Hi Shine,

    I have noticed that the problem with the data mismatch at all the offsets has been persistent in the previous release as well; for example the release 8.4, and the current 8.5.

    I am going to talk with the respective team and try to find out where the problem really is.

    Thanks & Regards,

    Vaibhav