Programming CRC value to flash

2001417

I'm trying to determine how to store a precalculated CRC value of my application to flash when I store the application, so that my application can verify the programmed CRC value against the flash contents. I see in NowFlash that I can store to the OTP area (is that the best area for something like this?), but I'm at a loss as to how I would just get a single CRC value stored. Is there any easy way to accomplish this or must I create a binary file from my single CRC value?

over 13 years ago

0 Prathap over 13 years ago

TI__Genius 14205 points

You cannot directly program the CRC values, nowFlash accepts one of the following formats (Coff, Intel, Binary, Motorola, elf, Tektronic ) as input.

Can you make it as part of your Application? Create a "data section" for the CRC values and map it to a specific address using linker command file.

Best Regards
Prathap

0 2001417 over 13 years ago in reply to Prathap

Prodigy 50 points

The CRC couldn't be in the application since the CRC I'm calculating is of the application itself. Or am I misunderstanding your suggestion? Thanks,.

0 2001417 over 13 years ago in reply to 2001417

Prodigy 50 points

I see a crc_table operator in the linker user's guide which seems like it will accomplish this, so I'll look into that approach.

0 2001417 over 13 years ago in reply to 2001417

Prodigy 50 points

I'm looking at the Assembly Language Tools User's Guide v4.9 (it is all I can find), but we are using linker version 4.6.4, and my link command file is throwing errors when trying to use crc_table as illustrated in that User's Guide. Is that command supported in 4.6.4? Thanks.

0 Prathap over 13 years ago in reply to 2001417

TI__Genius 14205 points

I found a sample linker commad file where we specify a data section, Hope it helps.

5224.Linker_Command_File.zip

Best Regards
Prathap

0 Prathap over 13 years ago in reply to Prathap

TI__Genius 14205 points

Were you able to solve your problem, Please "verify answer" if your issue is been addressed.

Best Regards
Prathap

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Programming CRC value to flash