Wednesday, 2019-01-23

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_florent_daveshah: thanks for the fixes, i'll try to have a better understanding of DQSBUFM and the others primitives06:42
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whatnickping daveshah ...23:43
whatnickLooking for a sample project for LFE5U-25F ( possibly MIPS/RISC-V core I can run micropython on)23:44
daveshahwhatnick: Should be easy enough to change to the 25F23:44
tpbTitle: prjtrellis/examples/soc_versa5g at master · SymbiFlow/prjtrellis · GitHub (at
daveshahThat's a simple picorv32 based SoC23:45
daveshahWhat board are you running on?23:45
whatnickI have the FleaFPGA23:45
whatnickAlso how can I help with line-endings :)
tpbTitle: NextPnr build failure · Issue #49 · SymbiFlow/prjtrellis · GitHub (at
whatnickYes I have done picorv32 on Xilinix + Micropython, would like to do the same with the ECP5 board I have23:47
daveshahLine endings is probably just a case of fixing this function
tpbTitle: prjtrellis/Util.hpp at master · SymbiFlow/prjtrellis · GitHub (at
daveshahAnyway, that SoC project should be a good place to start. Just change the device name in the Makefile and the pins in the LPF23:48
whatnickLooks like an OR here should do it "c != '\n'"23:49
whatnickLPF ?23:52
whatnick-> ?23:52
tpbTitle: prjtrellis/versa.lpf at master · SymbiFlow/prjtrellis · GitHub (at
whatnickWill have to read the manual on the pins on the board ... what changes are common ?23:53
whatnickdaveshah: this is the docs
tpbTitle: FleaFPGA-Ohm/FleaFPGA Ohm - Quickstart Guide Rev 0.11.pdf at master · Basman74/FleaFPGA-Ohm · GitHub (at
daveshahSo just change out all those pins to the pinout of that board23:56
daveshahMight be worth looking up an existing LPF for that board23:56
daveshahProbably need to remove the 14 disp pins as that board doesn't have the 14 seg display (the SoC demo doesn't use it anyway)23:57
whatnickCool found the LPF23:58
whatnick## ***** ECP5 PIN DECLARATIONS *****23:58
whatnick## USER LED;23:58
whatnickLOCATE COMP "n_led1" SITE "P2" ;23:58
whatnick.... etc.23:58
whatnickThe board has an HDMI out23:59

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