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MPC5645S Dram driver

Question asked by Denis ZALLOT on Apr 5, 2018
Latest reply on Apr 10, 2018 by David Tosenovjan

Good morning,


I work on the MPC5645S evaluation board.

I have written a DRAM driver.

I have noticed that the DCU can access this DRAM because when I modify the content of the DRAM, the TFT changes color.

On the other hand, I cannot have the E200z4 core write in it.

Also, the DRAM tests that I performed with the Green Hill debugger is OK

My ram is mapped at address 0x20000000. I hope that the DRAM at this address can be be accessed by the e200z4

Has anybody got a clue of what may be happening?