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TMS320F28P650DK: CPU1 to CPU2 ram issue

Part Number: TMS320F28P650DK

Hi all, 

I am using message ram to transfer data from cpu1 to cpu2.

According to TRM and .cmd file, there should be 2kB of message RAM for both ways.

However, I can only write data to the first 1kB, data  in the second 1kB doesn't show up in the memory browser.

Also, when I use CPU2 to verify the data, the data in the first 1kB is correct, but the data in the second 1KB doesn't match.

The program of CPU2 stops at the following place, where i is 512, so I guess the mismatch occurs at the beginning of the second 1kB

To sum up, I guess that only the first 1kB of the message RAM is functioning. Any idea what's going on here?

To reproduce the problem, you may use ipc_ex1 example of f28p65x with data size large enough to cover the second 1kB:

Thank,

Hang.