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2257569_en-US

2257569_en-US

What could be the reason for the ABIST2_EXT self-test failure of the S32K3X4EVB-T172?

I am using the S32K3X4EVB-T172 for development.

I tried using Sbc_fs26_PerformAbist2Check to check:
SBC_FS26_MOR_VPRE = 0
SBC_FS26_MOR_VCORE = 1
SBC_FS26_MOR_LDO1 = 2
SBC_FS26_MOR_LDO2 = 3
SBC_FS26_MOR_TRK1 = 4
SBC_FS26_MOR_TRK2 = 5
SBC_FS26_MOR_VREF = 6
SBC_FS26_MOR_VEXT = 7

However, I found that only Sbc_fs26_PerformAbist2Check(SBC_FS26_MOR_VEXT) makes ABIST2_PASS of FS_DIAG_SAFETY1 show as 0 / ABIST2 Fail or not executed, but I don't know why?

OTP.png

OTP2.png


OTP3.png

Could the issue be due to an incompatible OTP configuration of the FS26 part number PFS2613AMDA2AD used in the S32K3X4EVB-T172, or is it a faulty FS26 IC?

OTP4.png

Re: What could be the reason for the ABIST2_EXT self-test failure of the S32K3X4EVB-T172?

I confirmed on EVB that it's the OTP that's causing it, same as I said before.

If the OTP turns off the VMON behind it, you don't need to configure the bit of the corresponding channel.

Re: What could be the reason for the ABIST2_EXT self-test failure of the S32K3X4EVB-T172?

Yes, when executing ABIST2 self-tests, only ABIST2_EXT fails and shows ABIST2_PASS = 0, which may be a failure or not executed, but I can't think of a reason, but all other ABIST2 self-tests work and show 1 for PASS = ABIST2_PASS.

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Last update:
‎12-10-2025 02:28 AM
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