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Software Application Development AMP Zedboard Vivado
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AMP Zedboard Vivado

Former Member
Former Member over 9 years ago

I am trying to run a simple application where core 0 writes to a shared register and core 1 reads from that register, printing out the value.

I created a custom IP to be the shared register in the FPGA. I've confirmed with one core that I am able to read and write to that register.

However I cannot figure out how to get both of these to run simultaneously. Looking online it seems like I might need to go the route of something like FreeRTOS.

Is there really no way for me to program this within the Xilinx SDK?

All of the examples I have found for AMP are either for Altera tools, ISE, or different boards.

Thanks

edit:
I attempted to create a bootable SD of this using:
FSBL > system.bit > core0.elf > core1.elf

When I don't use the core1.elf to generate the boot.bin the program loads and functions correctly (different functionality than described before - it just writes and reads from a register).

When I use the core1.elf in the boot.bin generation nothing works at all.

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  • zedhed
    0 zedhed over 9 years ago

    Hi Steve,

    I think what you are doing should definitely be possible without using an RTOS.  The RTOS would be useful if you needed multiple threads running at the same time with deterministic latency.

    I recommend taking a look at Xilinx XAPP1079 for details on the dual core usage:

    http://www.wiki.xilinx.com/XAPP1079+Latest+Information

    We also have a more simplified version of this in our Zynq Software SpeedWay training which uses shared DDR3 memory space for IPC.

    http://microzed.org/course/developing-zynq%C2%AE-7000-all-programmable-soc-software-vivado-20133-and-201441

    I suggest going through that material which shows how to create the boot.bin file.  Once you have that working, then you might have an easier time getting your Programmable Logic mailbox working as expected.

    Regards,

    -Kevin

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  • Former Member
    0 Former Member over 9 years ago in reply to zedhed

    Hey Kevin,

    I successfully built this program which is exciting to see AMP mode function! However in order to continue developing it with custom PL designs I was wondering if there was a clear guide for how the FSBL was generated for AMP? As well as the BSP for the standalone_amp?

    Basically is their a more detailed guide?

    Thanks!

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  • Former Member
    0 Former Member over 9 years ago in reply to zedhed

    Hey Kevin,

    I successfully built this program which is exciting to see AMP mode function! However in order to continue developing it with custom PL designs I was wondering if there was a clear guide for how the FSBL was generated for AMP? As well as the BSP for the standalone_amp?

    Basically is their a more detailed guide?

    Thanks!

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