DM816xEVM boot failed when BTM[4:0] ==> 00111

Jed ZHU

Hi experts,

We want to boot DM6168 from SD card preferred, then NOR flash, so we set the BTM[4:0] to b'00111 on EVM, and it failed to boot from SD card.

Is there something omitted?

Thanks in advance.

Jed ZHU

over 13 years ago

0 Anil over 13 years ago

TI__Expert 6655 points

Hi Jed ZHU,

Refer this section for switch settings

http://processors.wiki.ti.com/index.php/TI81XX_PSP_U-Boot#EVM_Switch_Settings

Regards

AnilKumar

Please mark this Forum post as answered via the Verify Answer button below if it helps answer your question. Thanks!

0 Jed ZHU over 13 years ago in reply to Anil

Intellectual 815 points

Hi AnilKumar,

Yes, I know the EVM switch settings, let me explain it detailedly.

Now I want to boot from SD card if SD card is available, if it is not available, I want to boot from XIP device (NOR flash), so I set the boot mode switch BTM[4:0] to b'00111, following the section 4.3 Boot Sequence, SPRS614A. But it boot failed even I insert a boot SD card (this SD card can boot properly when I set the BTM[4:0] to b'10111).

Thanks,

Jed

0 Jed ZHU over 13 years ago in reply to Anil

Intellectual 815 points

Hi AnilKumar,

The U-Boot guide just shows that the case of first priority boot device is NOR/NAND/SD card, but I want to boot from different device with specified priority, such as SD card firstly, if it is failed, then boot from XIP device.

Best regards,

Jed ZHU

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DM816xEVM boot failed when BTM[4:0] ==> 00111