AM2434: How to generate CRC32 on AM2434?

Hager Fahem

Part Number: AM2434

Hi TI support,

I am currently working on AM2434 and I need to calculate a standard CRC32 for my application.

While reviewing the CRC peripheral/module, I noticed that it appears to be oriented around a 64-bit polynomial, so I am unsure whether it can be configured to produce CRC32 directly.

Could you please clarify:

Does the AM2434 CRC hardware support CRC32 calculation directly?
Is there any TI SDK example or documentation showing how to configure it for CRC32?
If the hardware does not support CRC32 directly, is there a recommended software-based implementation or workaround?

I would appreciate any reference, example code, or guidance.

Best regards

5 months ago

0 Karan Saxena 5 months ago

TI__Guru* 78165 points

Hi,

Along with the MCRC module which has the 64-bit polynomial, there is also a CRC16/CRC32 HW accelerator within the PRU_ICSSG sub system which can probably be used for your usecase. I'll go ahead and assign this thread to a colleague to help.

The SDK example for CRC32 is here, but this is for the CPU mode of operation.

https://software-dl.ti.com/mcu-plus-sdk/esd/AM243X/11_01_00_17/exports/docs/api_guide_am243x/DRIVERS_CRC_PAGE.html

Regards

Karan

0 Swargam Anil 5 months ago in reply to Karan Saxena

TI__Guru 54928 points

Hello Hager Fahem,

The AM243x device supports 8, 16, and 32-bit CRC.

Since you need 32-bit CRC, please use the example below, set the mode to the 32-bit value, and pass the data buffer.

The SDL API will use the MCRC module to calculate the 32 bit CRC for your provided data.

C:\ti\mcu_plus_sdk_am64x_XX\examples\sdl\mcrc\mcrc_full_cpu

Regards,
Anil.

Arm-based microcontrollers

Arm-based microcontrollers forum

AM2434: How to generate CRC32 on AM2434?