Update init data in dualport BRAM without re-run anything?
in [FPGA]
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From: Mawa_fugo on 23 Mar 2010 11:45 On Mar 23, 8:08 am, Mawa_fugo <cco...(a)netscape.net> wrote: > On Mar 21, 4:36 pm, Patrick Maupin <pmau...(a)gmail.com> wrote: > > > > > On Mar 20, 3:17 pm, Mawa_fugo <cco...(a)netscape.net> wrote: > > > > On Mar 20, 2:52 am, modimo <g.mod...(a)gmail.com> wrote: > > > > > On 20 Mar, 04:28, Mawa_fugo <cco...(a)netscape.net> wrote: > > > > > > On Mar 19, 10:05 pm, John_H <newsgr...(a)johnhandwork.com> wrote: > > > > > > > On Mar 19, 3:55 pm, Mawa_fugo <cco...(a)netscape.net> wrote: > > > > > > > > On Mar 19, 2:17 pm, John_H <newsgr...(a)johnhandwork.com> wrote: > > > > > > > > > On Mar 19, 3:01 pm, Mawa_fugo <cco...(a)netscape.net> wrote: > > > > > > > > > > Hi all, > > > > > > > > > > There's an instance of BRAM in spartan3 device. I used coregen with > > > > > > > > > *.coe file to init the data for the memory module > > > > > > > > > > My question, is there anyway to edit the mcs file (we use flatform > > > > > > > > > flash for config) to change the content of init data ..."without spend > > > > > > > > > 20 minutes to re-run the whole ISE processes > > > > > > > > > > Thanks, > > > > > > > > > "There's an app for that." > > > > > > > > >http://www.xilinx.com/products/ipcenter/dr_dt_data2mem.htm > > > > > > > > Thanks for the link, I do search around and all route to that page.. > > > > > > > But I'm not sure I can get anything, > > > > > > > Is there any download-able thing ? > > > > > > > > Thanks > > > > > > > Have you looked in your Xilinx directories for your installed ISE? > > > > > > > From a random sell sheet: > > > > > > > ISE WebPack FPGA Design Tool Suite > > > > > > Timing driven FPGA hardware implementation tools > > > > > > Design entry, synthesis and verification capabilities > > > > > > Data2MEM application for loading on-chip memory > > > > > > > It looks like it's included standard. > > > > > > Yes, I see that execute file data2mem, look like old day command > > > > > line. Guessing it's just another non-user-friendly Xilnx apps ;-) > > > > > > Thanks > > > > > Console apps are user-friendly matter of who their friends are ;) > > > > > Some examples should be helpfulhttp://home.mnet-online.de/al/BRAM_Bitstreams.html > > > > > There is also app for updating picoblaze code through jtag that also > > > > could be useful after some modifications.http://forums.xilinx.com/xlnx/board/message?board.id=PicoBlaze&messag... > > > > In my app, the data width is 1 bit, with 128k depth, that means I have > > > 8 BRAM16 inst > > > > ---------below is my bmm file > > > > ADDRESS_SPACE mem_module RAMB16 [0x00000000:0x00001FFFF] > > > > BUS_BLOCK > > > XLXI_2/MEM_MODULE/BRAM_MODULE_INST/B76/RAMB16BWER [0:0] PLACED = > > > X2Y12; > > > END_BUS_BLOCK; > > > > BUS_BLOCK > > > XLXI_2/MEM_MODULE/BRAM_MODULE_INST/B79/RAMB16BWER [0:0] PLACED = > > > X2Y14; > > > END_BUS_BLOCK; > > > > BUS_BLOCK > > > XLXI_2/MEM_MODULE/BRAM_MODULE_INST/B82/RAMB16BWER [0:0] PLACED = > > > X2Y13; > > > END_BUS_BLOCK; > > > > BUS_BLOCK > > > XLXI_2/MEM_MODULE/BRAM_MODULE_INST/B85/RAMB16BWER [0:0] PLACED = > > > X2Y15; > > > END_BUS_BLOCK; > > > > BUS_BLOCK > > > XLXI_2/MEM_MODULE/BRAM_MODULE_INST/B88/RAMB16BWER [0:0] PLACED = > > > X2Y17; > > > END_BUS_BLOCK; > > > > BUS_BLOCK > > > XLXI_2/MEM_MODULE/BRAM_MODULE_INST/B91/RAMB16BWER [0:0] PLACED = > > > X2Y18; > > > END_BUS_BLOCK; > > > > BUS_BLOCK > > > XLXI_2/MEM_MODULE/BRAM_MODULE_INST/B94/RAMB16BWER [0:0] PLACED = > > > X2Y19; > > > END_BUS_BLOCK; > > > > BUS_BLOCK > > > XLXI_2/MEM_MODULE/BRAM_MODULE_INST/B97/RAMB16BWER [0:0] PLACED = > > > X2Y16; > > > END_BUS_BLOCK; > > > > END_ADDRESS_BLOCK; > > > > ----below is the command line I try to see if I can extract the data > > > from existing bit file > > > > $ data2mem -bm mybmmfile.bmm -bt existingbitfile.bit > log.txt > > > > -------- But it always gives the below error > > > > ERROR:Data2MEM:29 - Inconsistent address space size in ADDRESS_SPACE > > > 'mem_module'. > > > ADDRESS_SPACE was defined as 0x00020000 bytes, but the > > > ADDRESS_RANGE total is 0x00004000 bytes. > > > > ---Then I try to change the address space to > > > > ADDRESS_SPACE mem_module RAMB16 [0x00000000:0x000003FFF], > > > > ---It then gives no error but the log.txt file is just a blank, > > > nothing show up > > > > ---I wonder if this tool can't handle data width with 1 bit wide???? > > > The tool doesn't have a clue. Just lie to it and tell it your RAM is > > 8 bits wide. > > Okie, I can lie it about the address, but how can I "lie" it about the > data ? > > Let me guess, I will have to tell it in byte, by concatenate 8 bits > together ? > > TIA Okie, problem solved, thanks all for your help |