Friday, 2019-01-25

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digshadowtmichalak: https://github.com/SymbiFlow/prjxray/issues/1103:19
tpbTitle: Document the bitstream for the IOBs in the Artix-7 · Issue #11 · SymbiFlow/prjxray · GitHub (at github.com)03:19
digshadowjust updated comment I added03:19
OmniMancerIs there any guidance available for the BRAM patching tool requirements/direction?03:26
OmniMancerThis issue https://github.com/SymbiFlow/prjxray/issues/18103:28
tpbTitle: Create tool to patch blockram (BRAM) contents in bitstream · Issue #181 · SymbiFlow/prjxray · GitHub (at github.com)03:28
litghostThe BRAM contents live in the BLOCK_RAM segments of the bitstream (see https://raw.githubusercontent.com/SymbiFlow/prjxray-db/master/artix7/tilegrid.json).  So a tool could use xc7patch to replace frames in those segments with new contents, and a tool could extract that data too.03:38
litghostWith tilegrid.json and the block ram segbits (https://github.com/SymbiFlow/prjxray-db/blob/master/artix7/segbits_bram_l.block_ram.db) we do have the mapping of bits in the BLOCK_RAM sections, and their relationship to the BRAM03:39
tpbTitle: prjxray-db/segbits_bram_l.block_ram.db at master · SymbiFlow/prjxray-db · GitHub (at github.com)03:39
litghostSome work is required to handle things like parity bits if enabled, and the bits in the segbits do not match the exact bits used in the vivado techmap03:40
litghostThe vivado techmap defines 256 bit segments, where as the segbits are a flat linear array03:40
OmniMancerAh, thanks for the links, I will look at them after LCA and see what I can make of it and ask further questions if I have them03:43
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nats`https://github.com/SymbiFlow/prjxray/issues/528 <= I'll take care of that this evening, I'll store it in the run.ok (it'll be moved later when we will move fuzzer results in xml files)09:11
tpbTitle: Fuzzer storing last target · Issue #528 · SymbiFlow/prjxray · GitHub (at github.com)09:11
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litghostnats: Maybe conside making the build directories and run.ok files suffix with .${XRAY_PART}?  Then we could build databases in the same directory structure?21:05
litghostI haven't thought about it too hard, but there is nothing preventing it, and then Make would track the dependencies correctly21:05
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