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Linux/TMS320DM8148: Problem in Sharing the mmap fb0/fb1 in between ARM and DSP.

Part Number: TMS320DM8148

Tool/software: Linux

Using Latest Ezsdk , with DM8148 evm , I allocated the memory from ARM side(Linux) and Shared the Pointer to DSP(Ti-Rtos)  using Syslink. I put some data From Arm and was able to read

From DSP side . As soon as i mmap the Fb0 to the same pointer location all data read from ARM Side shows me 0x00 while on DSP side it still shows old value  . ON changing data from either core i am not able to see

any change in data on the other core . How can i resolve this issue ?