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OMAP3530 NAND boot problem.

Remony
Expert 1560 points

We are using a OMAP3530DCUS, Micron MT29F4G16ABCWC:C (NAND) and MT46H32M32LFCM-6IT (DDR).

I first use SD Card boot to write the x-loader to NAND. And then I wrote the x-loader to NAND and reset.

But our own board don't boot. Any message did not appear from UART.

If there are x-loader in NAND (start at 0x00000000) , does prompt shows 'Texas Instruments X-Loader 1.41' ?

OMAP supports device ID of MT29F4G16ABCWC.

What is problem? 

  • 0
    Genius 3685 points

    Hi Remony,

    1. Have you remembered to sign the xloader prior to flashing it?
    2. Secondly the ROM-code requires the WAIT pin to have a pull-up (AFAIR), since it's active low logic.

    And you are right: In case the x-loader is loaded and started correctly by the ROM-code you will see something like: 'Texas Instruments X-Loader 1.41' on the serial port. In case you have JTAG access to the board, you can check the boot tracing vector to see what the ROM-code does. You can find info with respect to this in the TRM chapter "25.4.9 Tracing"...

    Best regards - Good luck
      Søren