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AM1808 EVM: Linux stops running after a short while

Philipp Schrader
Intellectual 560 points
Other Parts Discussed in Thread: AM1808

Hi everyone,

Has anyone else had any issues with getting their demo images to run on their AM1808 EVM?

After roughly 20 seconds of booting into the demo application (i.e.: using the LCD touchscreen) the board stops responding. What I mean is that the LCD goes blank, telnet stops responding and nothing is printed out over the UART console anymore.

Every so often I even see kernel errors like:

FATAL: Error inserting minix (/lib/modules/2.6.33-rc4/kernel/fs/minix/minix.ko): Invalid module format

or

Internal error: Oops - undefined instruction: 0 [#1] PREEMPT

amongst a few others.

I tried the SDK version 1_10_00_00 (DaVinci-PSP-SDK-03.20.00.11), SDK version 1_10_00_01 (DaVinci-PSP-SDK-03.20.00.12), re-compiling the kernel myself, and both NAND and SPI boot modes.

 

If anyone has a suggestion to investigate the problem it would be much appreciated.

Thanks,
Philipp

  • 0
    Intellectual 560 points

    Looks like I found a solution.

    I had posted this also on the davinci-linux-open-source mailing list and Gabriele Filosofi suggested I consider some cooling methods.

    So I put a big fan on top of the AM1808 SOM and now the system doesn't lock up anymore.

    I.e.: Looks like my particular board has heating problems.