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Ultrazed "production" SOM doesn't boot

sonictai

Hello,

We've just received and powered on our brand new Ultrazed SOM, with "production" chips. But they don't boot, well they don't boot all the time...

We get some SD card access errors as SDHCI_send_command error.

Are there any differences between the ES1 and Production SOM, except for the Ethernet Phy Address that we already changed?

I saw on the SOM that the POR_OVERRIDE pull up/pull down resistors weren't in the same configuration. This remark is true looking at the broads, not at the schematics which are identical!?

May it have something to do with my boot difficulties?

Regards, Christophe

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    Hello Christophe,

    The patch provided was initially what we used on our ES1 SOMs to solve our SDIO issues. So you stating that the patch fixed your Production SOMs and not your ES1 SOMs does not seem logical. Could you please run the factory test Linux i mentioned in the second post of this forum on your SOMs and tell me if you still encounter this issue.

    Thanks,

    Josh

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    Hello Christophe,

    The patch provided was initially what we used on our ES1 SOMs to solve our SDIO issues. So you stating that the patch fixed your Production SOMs and not your ES1 SOMs does not seem logical. Could you please run the factory test Linux i mentioned in the second post of this forum on your SOMs and tell me if you still encounter this issue.

    Thanks,

    Josh

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