errata_PBIST_4() is running on TMS570LS0332 into selftestFailNotification(PBISTSELFCHECK_FAIL2)

Frank Malzan

Other Parts Discussed in Thread: HALCOGEN, TMS570LS0332

Hi,

At start-up of the TMS570LS0332 (also with a new empty Project of HALCoGen 4.02.00) the function errata_PBIST_4() call's the function selftestFailNotification(PBISTSELFCHECK_FAIL2).

This happens because the timing of the PBIST is not as expected?

if ((PBIST_wait_done_loop <= 20) || (PBIST_wait_done_loop >= 200) )

{

selftestFailNotification(PBISTSELFCHECK_FAIL2);

}

The errata-Sheet says that a re-run should be done as long as the Timing is not correct. But i can not find this in errata_PBIST_4()?

Has somebody more Information?

over 10 years ago

0 Zhaohong Zhang over 10 years ago

TI__Mastermind 22715 points

Hi, there.

It seems to me that you will need to run this function again if this error is observed. I have passed your question to the halcogen team and they will reply with more details.

Thanks and regards,

Zhaohong

0 Frank Malzan over 10 years ago in reply to Zhaohong Zhang

Intellectual 445 points

Hi @all,
is there any update from the halcogen team?

(from my understandig the idea of the errata_PBIST_4() is to fix even the problem with to short running PBIST. So the errata function errata_PBIST_4() is not working at all?)

Regards,
Frank

0 Frank Malzan over 10 years ago in reply to Frank Malzan

Intellectual 445 points

Hi,
I want to bring this Topic to front again. After 2 Month there is still no Feedback?
I have checked this issue with the code from the last HALCoGen 04.03.00. No Change. The bug is still there.

There are also other Threads for the same Topic without an answer:
e2e.ti.com/.../1419350
e2e.ti.com/.../334053
e2e.ti.com/.../1406901

To run the function again is not a solution, I tested it.

Regards,
Frank

0 Zhaohong Zhang over 10 years ago in reply to Frank Malzan

TI__Mastermind 22715 points

Frank,

There is no feedback yet. I will send them another request.

Thanks and regards,

Zhaohong

0 Prathap over 10 years ago in reply to Zhaohong Zhang

TI__Genius 14205 points

It's a BUG..

In errata_PBIST_4() Function

The ROM_DIV value in MSTGCR is set to 0, so ROM_CLK = HCLK/GCLK. But during the PBIST_wait_done_loop calculation it is assumed that ROM_DIV is 1, that is ROM_CLK=HCLK/2. If you replace PBIST_wait_done_loop = ((sint32)pmuCount/2) - 1000 with PBIST_wait_done_loop = ((sint32)pmuCount) - 1000
it should work fine. I raised it as a BUG in HALCoGen Bug Portal, this will be addressed in upcoming release.

/* Enable memory self controller */
systemREG1->MSTGCR = 0x000000AU; --> Place whare ROM DIV is set

/* Calculate PBIST test complete time in ROM Clock */
/* 2 - Divide value ( Default is 2 in HALCoGen) */
/* 1000 = 0x3E8 - Test Loop count in ROM Algorithm */
pmuCount = pmuCount - pmuCalibration;
PBIST_wait_done_loop = ((sint32)pmuCount/2) - 1000; --> Place where pmuCount is divided by 2.

0 Frank Malzan over 10 years ago in reply to Prathap

Intellectual 445 points

Thank you for your support. With the change it's working as expected.

Frank

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errata_PBIST_4() is running on TMS570LS0332 into selftestFailNotification(PBISTSELFCHECK_FAIL2)