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TMDXEVM8148 - dm814x am387x EVM -- Help Needed

Douglas Robinson
Prodigy 200 points
Other Parts Discussed in Thread: INA226

I am new to ARM development but have extensive experience in embedded real-time dvelopment. I have just received the EVM and was following the setup  instructions from the EZ software development guide. I had a minicom session running that captured the boot messages from the EVM target. After booting,  was able to login to the target as described in the setup instructions.

I cycled power at one point and now all I get on the serial output port is the " !INA226 Based Power Monitor" output. This output appears whether the SD card is inserted in the board or not.

How did I get into this mode and how do I get out of it? 

  • 0
    TI__Guru**** 170625 points

    Douglas,

    Do you attach the UART cable to the correct UART console port (CENT DB9)? If I attach the UART cable to the UART power monitor port (MSP DB9), I have the below console output:

    !Power Monitor      
     #U12 (3V3)           0003360mV         9873338uA  
     #U17 (5V0)           0004924mV         0013333uA  
     #U49 (CVDD ARM)      0001208mV         3753335uA  
     #U52 (VDQ CENT 1V8   0001492mV         9120004uA  
     #U22 (HDVICP 3V3)    0001216mV         0006666uA  
     #U50 (VDDA 5V0)      0001812mV         3366668uA  
     #U53 (VDDQ 1V8)      0001504mV         5093336uA  
     #U51 (VDD DSP)       0001188mV         0013333uA  
     #U6  (CORE VDD)      0001220mV         1110000uA

    Regards,
    Pavel

  • 0 in reply to Pavel Botev
    Prodigy 200 points

    Pavel,

    You nailed it !!! I had the serial port connector attached to the wrong serial port on the EVM. Thanks so much for your assistance.

    Doug

  • 0 in reply to Pavel Botev
    Prodigy 200 points

    Once I had moved the connector to the appropriate serial I got the SD boot-up messages. Powered down went on a coffee break. Came back, powered-up and EVM will not boot. There is also no serial output on the power monitor port either. The MATRIX application does not start. and the LCD display remains blank with the tiny LED on the display board remains unlit.

    I have tried re-seating the  SD card, installed the SD card from another EVM board kit we have and the EVM still will not boot. Rechecked the Boot configuration switches. They are in the same position as when the EVM did boot sucessfully. The boot switches are as follows:

    5 - on 4- off  3,2 and 1 on.

    Are there any tools or diagnostics I can use to determine why the EVM won't boot and the power monitor will not output voltage values.

    Thanks in advance, I am really at a loss here.

    best regards 

  • 0 in reply to Douglas Robinson
    TI__Guru**** 170625 points

    Douglas,

    Do you have anything on the console (any boot-up message)? Try disconnect then connect all cables and power supplies.

    May be your SD card get corrupted. You can also try to create bootable SD card following the guidelines provided in:

    {EZSDK}/docs/DM814x_EZ_Software_Developers_Guide.pdf

    6.6 How to create an SD card


    Regards,
    Pavel