AM62L: AM62L: write operations to the MRAM via OSPI

Takayuki Okamoto

Part Number: AM62L

Hello,

Since the thread below is locked, I have created a new one.

https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1571174/am62l-write-operations-to-the-mram-via-ospi

Could you please update me on the progress?

We are still waiting for the results of the expert analysis of the issue.

Best Regards,

Takayuki

1 day ago

0 Hong Guan64 5 hours ago

TI__Guru 71100 points

Hello Takayuki-san,
From the new e2e, it looks like you're able to read/write MRAM via OSPI I/F.
AM62L: AM62L OSPI Write Performance
Is my understanding correct?
Best,
-Hong

0 Takayuki Okamoto 7 minutes ago in reply to Hong Guan64

Intellectual 270 points

Hello Hong-san,

We're able to read/write by changing write command opcode from 0xDA that we previously used to 0x02(it's also 4-4-4 write command).

However, we don't understand why the 0xDA causes this problem.

Since no sections performing such processing were found in the driver either, we believe that the cause of this issue lies in the internal specifications of the OSPI controller.

Best Regards,

Takayuki

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AM62L: AM62L: write operations to the MRAM via OSPI