How to boot dm6437 from nand flash?

Jianhui Fu

Other Parts Discussed in Thread: TMS320DM6437

ROM bootloader on my dm6437 is not the latest silicon revision (rev 1.3), I use Secondary boot for nand device. I download spraag0d.zip and spraag0d.pdf from TI.

When I burn Secondary bootloader into EEPROM and my application into Nand Flash, according to NANDSecondaryBoot.doc (spraag0d.zip) and spraag0d.pdf, 6437 can not run without host machine.

what shall I do?

over 17 years ago

0 Brad Griffis over 17 years ago

TI__Guru*** 125430 points

Are you saying that you wrote your own custom bootloader, but it does not operate properly unless you have CCS hooked up? Is that what you meant by "cannot run with host machine"?

If so, it's likely that there is something inside the CCS gel file that is doing initialization on the device and that code needs to be moved to your secondary bootloader. Tips on debugging your bootloader can be found here:

http://tiexpressdsp.com/index.php?title=Debugging_from_Flash

Brad

0 Vijay Hiremath over 13 years ago in reply to Brad Griffis

Intellectual 330 points

hi Brad,

i am trying to interface TMS320DM6437 with NAND FLASH(HY27UA081g1m).

i tried SPRAAG0. NAND Writer code but

i got verification error,

can you please give me some hint on this issue??

what's the verification error??

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How to boot dm6437 from nand flash?