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SDRAM test fails when executing from SDRAM...

Question asked by Ed Sutter on Apr 8, 2020
Latest reply on Apr 14, 2020 by Kerry Zhou

Hi, I am currently using the MIMXRT1060-EVK.  I have an application that I can build to run XIP from QSPI-nor or it can boot out of QSPI-nor and transfer itself to SDRAM and run.  The application resides in the lowest 1M of the SDRAM space, and part of the application is an SDRAM test.  I run the test on various portions of the SDRAM and find that errors are detected when I invoke the test while executing out of SDRAM, but if I run the test while executing from FlexSPI-nor things are fine.  Obviously, I am not testing the area that I am executing from while executing out of SDRAM.

 

I build with gcc-arm, and I use the evkmimxrt1060_sdram_ini_dcd.c/h files from the SDK to init the SDRAM.

Anyone ever have this problem?

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