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CCS/TMDX654GPEVM: How to change the speed of command 5A by DDR mode of octal flash at TMDX654GPEVM

Mike Su
Prodigy 20 points

Part Number: TMDX654GPEVM

Tool/software: Code Composer Studio

Request : How to change the speed of command 5A by DDR mode of octal flash at TMDX654GPEVM

Octal flash specification : The speed of 5A command ( to read SFDP) at DDR mode should be 86Mhz with 8 dummy cycles only.

                                         But we check its really waveform and confirm its speed is 162Mhz.

Failed situation : while we probe our Octal flash at TI TMDX654GPEVM, but it failed.

                           After confirmation, the failed root cause is failed to read SFDP by DDR mode.

                           Since its speed is over 162Mhz, but specification should be 86Mhz with 8 dummy cycles pnly.

So could you tell us how to change speed of of command 5A by DDR mode of octal flash at TMDX654GPEVM

                   

Platform : Ti AM654x

SDK version: Am65xx-evm-06.03.00.106

Micron Octal flash part number :MT35XU512ABA