TMS570LC4357: DMA12 1Bit ECC Test triggers EMS 1.82 and 1.3

Max Wittekind

Expert 1875 points

Part Number: TMS570LC4357

Hi experts,

Any news concerning this topic?
e2e.ti.com/.../tms570lc4357-dma12-1bit-ecc-test-triggers-ems-1-82-and-1-3

(Q1) Can we expect this to happen every time we test the DMA ECC for single bit errors?

Thank you and best regards,
Max

over 3 years ago

0 QJ Wang over 3 years ago

TI__Guru**** 196286 points

Hi Max,

This is a similar behavior as VIM RAM self-test mentioned in your another thread. My launchpad has RevA silicon, and I will find a revb board tomorrow and test again.

0 QJ Wang over 3 years ago in reply to QJ Wang

TI__Guru**** 196286 points

I checked on revB silicon. The UERR flag is also set by injecting 1-bit ECC error. Your code needs to clear both ESM flags (correctable and un-correctable).

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TMS570LC4357: DMA12 1Bit ECC Test triggers EMS 1.82 and 1.3