TMS570LS3137: TMS570 HW CRC Problem

malte graep

Hi :)

i've a problem with the hw crc module of the TMS570. We wanted to use it in our current project but it does not work as expected :/

As in thread https://e2e.ti.com/support/microcontrollers/hercules/f/312/p/716945/2655550#2655550

over 7 years ago

0 QJ Wang over 7 years ago

TI__Guru**** 199146 points

Hello Graep,

What do you mean by saying "it does not work as expected"? The CRC module support full CPU mode, half-CPU mode, and auto mode. All modes work fine. I am not sure about the manual implementation from Richard Burke.

0 malte graep over 7 years ago

Prodigy 65 points

My mistake ;) solved in e2e.ti.com/.../2655550

0 Jens Klocke over 7 years ago in reply to malte graep

Prodigy 210 points

The version with code generated by pycrc (Sunil's suggestion) works fine, too:

e2e.ti.com/.../2807306

Also helpful: Linker Generated CRC Tables as described here:

www.ti.com/.../spna235.pdf

Regards,

Jens

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TMS570LS3137: TMS570 HW CRC Problem