TMS570LC4357: TMS570LC4357: How to detect single bit errors in RAM / FLASH ?

Lars Guenther

Part Number: TMS570LC4357
Other Parts Discussed in Thread: HALCOGEN

Tool/software:

Hi all,

I am using the TMS570LC4357 processor and Code is generated by HalCOGen. I want to detect single bit error on RAM / Flash.

If I understand the documentation than I have to call function "epcEnableSERREvent" (generated by HalCOGen) which sets the SERRENA bit in register EPCCNTRL to 0xA.

Than I have to activate the ESM low interrupt (ESM high is set by default) and the ESM channel 4 (EPC CERR).

Is that the way how it works ? And any idea how to test ?

Best regards
Lars Guenther

6 months ago

0 jagadish gundavarapu 6 months ago

TI__Guru 62905 points

Hi Lars Guenther,

Can you please refer below thread once:

(+) TMS570LC4357: Writing directly to ECC memory to create 1-bit and 2-bit error in the L2RAMW - Arm-based microcontrollers forum - Arm-based microcontrollers - TI E2E support forums

Thanks & regards,
Jagadish.

0 Lars Guenther 6 months ago in reply to jagadish gundavarapu

Intellectual 675 points

Thanks, I will try.

But first of all, could you agree that the sequence in SW to detect signale error event is the following one:

- call of "epcEnableSERREvent" (generated by HalCOGen)

- activate corresponding ESM channel (4)

- and activate ESM low interrupt

Best regards

Lars

+1 jagadish gundavarapu 6 months ago in reply to Lars Guenther

TI__Guru 62905 points

Hi Lars,

Your flow looks correct.

The ECC verification in this device will always be in enabled state the only thing is that we need to enable the corresponding interrupts.

For more details about injecting ECC error, you can refer the thread that i shared to you.

--
Thanks & regards,
Jagadish.