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<dkozel>
I feel like I've seen a demo of a *lot* of riscv cores crammed into an ECP5. Does anyone know who was doing that? It was a silly number, hundreds of cores IIRC
<dkozel>
Thanks. Wanted to pass that reference to a student coming up with a class project
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<kitten_nb_five>
Hello. I am not sure if i found a bug and where to report it (yosys or nextpnr). I wanted to use the DTR-primitive (temperature readout) on ECP5 and found that the names of the in- and outputs do not match what is written in the Lattice FPGA Library Reference. I had to search trough github to find the correct names. Is this normal or should the project use the names from the Ref Manual?
<daveshah>
They should match Diamond
<daveshah>
Let me check the Verilog primitives in Diamond
<kitten_nb_five>
Diamond is the official Lattice tool i assume?
<daveshah>
Yes
<kitten_nb_five>
fyi: in the Reference Manual it is written START_PULSE and DTR_OUT, but yosys/nextpnr uses STARTPULSE AND DTROUT0-7
<daveshah>
And it looks like it does match the verilog sim model
<daveshah>
So the reference manual is wrong
<kitten_nb_five>
okay, maybe i got an old version. thank you for this quick information!
<kitten_nb_five>
btw, in my opinion a few words of "what does this primitive do?" in the nextpnr-ecp5 Primitive Support List would be a good idea - or not? Should i make a pull-request?
<daveshah>
Yeah, go for it
<kitten_nb_five>
ok, will do soon
<daveshah>
Sorry, I still need to review 504 too, I will try and do that tomorrow
<kitten_nb_five>
no problem :)
<kitten_nb_five>
i am afraid i messed something up on my fork of nextpnr because i commited to master directly for the first pull request. is there a way to move this one to a separate branch using the website?
<daveshah>
Don't know, but feel free just to add it as another to the current pull request
<kitten_nb_five>
yeah ok, i will try. still new to github...
<kitten_nb_five>
ok, i think i cannot revert commits using github. i made a new pull-request (#506) but it contains also the modifications for the first one. i apologize for the mess. :( feel free to edit/delete/discard/whatever. i will stop here and wait for advice.