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nand2mario / nestang

NESTang is an FPGA Nintendo Entertainment System implemented with Sipeed Tang Primer 25K, Nano 20K and Primer 20K boards
GNU General Public License v3.0
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newbie question about nestang_nano20k.gprj #90

Closed oldoldman closed 4 weeks ago

oldoldman commented 1 month ago

Hi guys, When run synthsizing of the nestang_nano20k.gprj, I got the following error

ERROR (RP0006) : The number(27765(26541 LUTs, 882 ALUs, 0 ROM16s, 57 SSRAMs)) of logic in the design exceeds the resource limit(20736) of current device

How does this happen? Many thanks!

fjpolo commented 1 month ago

A couple followup questions :)

  1. What branch are you on?
  2. What version of GOWIN IDE are you using? EDU? Licensed?
oldoldman commented 1 month ago

I'm using nestang_nano20k.gprj on the master branch. And the IDE is EDU. BTW, I've tried nestang-0.7.2rc , which works fine.

nand2mario commented 1 month ago

Make sure you use Gowin 1.9.9. I use the Pro version (the Edu version should work). 1.9.10 does not work as Gowin somehow disabled SSRAM support in this release for some reason, which results in excessive resource usage.

fjpolo commented 4 weeks ago

@oldoldman if the issue is resolved please be sure to close it :)