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The Flash memory ECC failure reporting path check

Question asked by xiaobo zheng on Jan 12, 2017
Latest reply on Jan 13, 2017 by David Tosenovjan

Assumption: [SM_119] The Flash memory ECC failure reporting path should be
checked to validate if detected ECC faults are correctly reported.


Implementation hint: The flash memory ECC fault report check is executed in
software . The test consists of software reading from the flash memory UTest area (see
"UTEST flash memory map" table in the "Memory map" chapter of the MPC5744P
Reference Manual). a set of test patterns to test the integrity of the ECC logic fault
reporting path to the MEMU and FCCU (executed at start-up, latent failure measure).


question:   is this means:  we can write some data into utest  region (0x00400040-0x00400060), rading it back and check the fccu or memu flag ?

   if this is not right, please tell me how can i check flash ecc failure report path,  thanks !