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Re: MDMA transfer between Core0 (ARM) and core1 (SHARC)

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AS a first step,  I try to implement a simple memory share between the Linux ARM Core 0 and the Bare-metal Sharc+ Core 1.  I'll try to work with processor instructed memory copies.

 

I tried to use the mmap function for mapping a file onto a memory segment.

If I run the code with a memory block in the shared memory space of the SHARC+ or in the DDR memory space I got a segmentation fault.  Logic since the memory is not assigned to the Linux.

 

How can I use this kind of shered memory and is there any example code available for doing this ?


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