yrabbit
commented
9 months ago hi, For starters, you can't use nextpnr-gowin to create images for Tangnano20k. Further, you cannot use the current release of nextpnr to use himbaechel gowin - because it is a May 2023 release and there is nothing related to gowin there.
So you need to compile and install nextpnr from the master branch.
To do this, you take this master branch:
git clone https://github.com/YosysHQ/nextpnr.git
install all the necessary things (nextpnr prerequisites)
cd nextpnr
cmake . -DBUILD_PYTHON=OFF -DARCH="gowin;himbaechel" -DHIMBAECHEL_GOWIN_DEVICES=all
make
sudo make install
after that you can go to the apicula examples directory and build examples:
cd XXXX-apicula-root/examples/himbaechel
make -f Makefile.himbaechelAt each stage there may be ambiguities or my mistakes, so ask questions if something does not work.
pepijndevos
siraisisatoru
ReubenkThomas
Seyviour
Hi,
I recently got a Sipeed Tang nano 20k device to verify my coursework design in the system verilog. Before getting this device, I used to learn Xilinx devices and the corresponding software eco-system.
I noticed some tutorials for Tang Nano 9K using OSS CAD Suite. I want to use it for my device but it constantly complains that the device is invalid.
The script I used:
Then I recognised
nextpnr-gowinis built on top of Apicula and thus I constantly monitored this repo and finally someone added Sipeed Tang nano 20k on the readme. This sounds to me like I should be able to runnextpnr-gowinfor my device but it is not and still getting the same error. By digging into the issues, I found https://github.com/YosysHQ/apicula/issues/208 and they mentioned "nextpnr-himbaechel" while this is not being mentioned anywhere (at least not on Google and the readme file for https://github.com/YosysHQ/nextpnr).The question I am having now is, how can I build my code for Sipeed Tang nano 20k no matter using nextpnr-himbaechel or nextpnr-gowin? I would also want to know how to build the examples. A step-by-step tutorial like https://github.com/YosysHQ/apicula#getting-started for Sipeed Tang nano 20k would be appreciated.
Thank you all for the hard work.