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DM3730 - RAM Issues

Alan Cranbury
Prodigy 10 points
Other Parts Discussed in Thread: DM3730

Hello, we are building a custom board based on the BeagleBoard, using the DM3730. We've run into some potential RAM issues using a Micron 4Gb package. The board is running Angstrom Linux (2.6.32) . We've had several kernel panics while running our Qt application, and we thought it might be a hardware issue.

I installed the memtester package to see if the RAM would pass, and memtester crashes the board (either a kernel panic, or just full lockup, no heartbeat) if I try to test more than 85MB at a time. As far as I know, memtester should be able to mlock all available memory and test it, but I've only been able to get <85MB. I also tried to run the U-Boot mtest, but I'm not sure I ran it correctly. Can anyone help me out with this?

Thanks,

Alan

  • 0
    TI__Guru 65405 points

    Hi Alan,

    The memory controller on the DM3730 supports 4 Gb memory devices but you should sure that all is connected and configured correctly. For more details about functional description and basic programming model refer to the TRM section 10. Memory subsystem. If you ensure that all is correct but the issue still exists post the u-boot bootargs and logs of memory tests in kernel and mtest in u-boot.

    BR

    Tsvetolin Shulev