Re: [casper] DRAM/DDR4 support for ZCU216

[Parham Zarei]

Hello Ken, My knowledge might be outdated/limited in this question but here is my understanding. I think it is fair to say all of the rfsocs eval boards by Xilinx have one dram for ps (which is accessible thorough PL as  well ) and one for PL.  As these drams are outside of fpga fabric you need some sort of memory interface and something that deals with addressing of dram.  This can be done through AXI fifo or DMA engine which connects to memory interface (Xilinx ultrascale plus  MIG) . These engines work in simple mode or scatter gather mode based on idea of interrupt and function calls. As far I understood, in Casper, this is not developed yet for rfsoc. (Maybe i am wrong so wait for others comment)  However I have some knowledge of how to use these dram outside Casper. How to merge it with Casper I have no idea!  Regards, Parham On Sep 8, 2023, at 6:10 PM, Ken Semanov <shapkiqua...@gmail.com> wrote:  It seems several blocks in the CASPER DPS and XPS blocksets support ROACH and SKARAB, but what about ZCU216 and its two (C0, C1) DDR4 clamshells? In simulink, I staged the block from CASPER DSP Blockset >> Scopes >> bitfield_snapshot. Changing the Storage medium from bram to dram gives the following error,    <dram_xps_library.png> There does exist a CASPER XPS Blockset >> Memory >> dram  but that appears to be a block targeted to ROACH.    Rumor has it that ZCU216 eval boards have a 4x1GB C0,  and a 4x1GB C1,  both accessible from the FPGA.   Is there a block available for use with those? -- You received this message because you are subscribed to the Google Groups "casper@lists.berkeley.edu" group. To unsubscribe from this group and stop receiving emails from it, send an email to casper+unsubscr...@lists.berkeley.edu. To view this discussion on the web visit https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/b05c53d6-5bf2-4e35-bdf8-7ff7d5015ca4n%40lists.berkeley.edu. <dram_xps_library.png> -- You received this message because you are subscribed to the Google Groups "casper@lists.berkeley.edu" group. To unsubscribe from this group and stop receiving emails from it, send an email to casper+unsubscr...@lists.berkeley.edu. To view this discussion on the web visit https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/1E7565C3-8907-42FC-A468-A0433FAC5BC3%40gmail.com.