Bad Data CRC

smilexj

Prodigy 190 points

Hi all,

I worked with a DM355 system and I tried to flash a uImage kernel file using U-Boot commands.

Using below commands:

nand erase 0x380000 0x200000
nand write 0x80700000 0x380000 0x200000

Sometimes works, sometimes fails, failure times over than work times. It's not stable.

Booting image at 80700000 ...
   Image Name:   Linux-2.6.10_mvl401
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    938728 Bytes = 916.7 kB
   Load Address: 80008000
   Entry Point: 80008000
   Verifying Checksum ... Bad Data CRC

Can anyone give me some hints ?

Thanks!

over 16 years ago

0 Juan Gonzales over 16 years ago

TI__Mastermind 37340 points

In my experience, every time you flash a new u-boot you get a bad CRC message until your force a save of u-boot enviroment variables (e.g. via saveenv u-boot command); I am not sure of this is the same case you are seeing for the Linux kernel but it is worth a shot.

Also, please make sure you are rounding up the size of the kernel to the nearest block aligned size of the NAND flash; see the following wiki for more details: http://tiexpressdsp.com/index.php/Writing_Kernel_Image_to_NAND_Flash

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Bad Data CRC