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Newbie sarbartha
Newbie
67 Views
Registered: ‎10-14-2018

PS mmap read of an address while the PL is constantly updating the value in Zynq

Hi,

    I want to have a shared memory location (cma maybe) that I want to constantly update based on some logic in PL and read it back from PS intermittently while the PL is executing. I have defined a maxi HLS interface and allocated an address in cma for a shared memory. But when I read it from linux, I receive 0. Can you please help me in knowing what I am missing here. I can upload more details if required.

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Xilinx Employee
Xilinx Employee
30 Views
Registered: ‎06-27-2017

Re: PS mmap read of an address while the PL is constantly updating the value in Zynq

Hi @sarbartha

 

You can reserve DDR memory and try to dump the data from PL.

Please refer below thread for more info.

 

 

Best Regards
Kranthi
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