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TMS570LS1224: SRAM and FLASH ECC fault insertion API from Safety Lib doesn't work.

Abdul Hakim

Prodigy 20 points

Part Number: TMS570LS1224

Tool/software:

Hi,

I'm invoking the Safety LIB functions SL_SelfTest_SRAM and SL_SelfTest_Flash and expecting abort() functions would be called, but I see abort is only invoked when these faults are inserted at very quick session.

For example, if I invoke SL_SelfTest_SRAM every 2 seconds, then abort is not invoked, however if I increase the frequency on calling SL_SelfTest_SRAM say twice a second for few seconds then I see abort is called.

Is this expected behavior? I expected an exception from ESM on first call.

Are there any settings I'm missing here.

Thanks in advance.

0 Abdul Hakim 7 days ago

Prodigy 20 points

Appreciate if you could reply to my query.

0 jagadish gundavarapu 7 days ago in reply to Abdul Hakim

TI__Guru 57690 points

Hi Abdul,

It should trigger abort immediately, i mean even for single uncorrectable error also it should lead to the abort.

Are you testing uncorrectable or correctable errors on your end?

--
Thanks & regards,
Jagadish.

0 Abdul Hakim 7 days ago in reply to jagadish gundavarapu

Prodigy 20 points

Hi Jagadish,

Basically, I'm calling these functions and digging these functions I can see that 2-bits of ECC are corrupted and data is read back.

SL_SelfTest_SRAM(SRAM_ECC_2BIT_FAULT_INJECT, TRUE, &sram_stResult);

SL_SelfTest_Flash(FLASH_ECC_TEST_MODE_2BIT_FAULT_INJECT, TRUE, &fit_flash_stResult);

Could you help me understand whether by clearing ESM group 3 flag can I make the fault uncorrectable?

Thanks and regards,

Abdul