Fpga programming with OpenFPGALoader - Githubissues

d-lec / d-lev-hdl

Source mirror of SystemVerilog source code for D-Lev processor.

MIT License

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Fpga programming with OpenFPGALoader #2

Open wormyrocks opened 1 year ago

wormyrocks commented 1 year ago

https://github.com/trabucayre/openFPGALoader

wormyrocks commented 1 year ago

Needed to patch OpenFPGALoader with bitstream for EP4CE6: https://github.com/d-lec/openFPGALoader/commit/1eade2eef7c1711595deb92af8bb0a03c5737aee We should take a stab at porting over support for FT232R in bitbang mode, that way people with generic USB to serial converters can also program their FPGAs without having to rustle up a USB blaster or clone. https://trabucayre.github.io/openFPGALoader/guide/advanced.html procedure:

build and install openFPGALoader from d-lec fork
export from quartus as 'raw binary file (.rbf)' (or use CLI options here). do not export as 'RBF for partial reconfiguration', it will not work!
connect to bus blaster with 'straight' (not crossover) crimped 10-pin IDC cable
write bitstream to RAM:
- openFPGALoader -c usb-blaster output_file.rbf
write bitstream to SPI:
- openFPGALoader -c usb-blaster output_file.rbf --fpga-part ep4ce622 -f

you can also write an RPD file, but it's much slower.