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authorDavid Shah <davey1576@gmail.com>2018-08-01 15:58:38 +0200
committerDavid Shah <davey1576@gmail.com>2018-08-01 15:58:38 +0200
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ecp5: Remove libtrellis link for bitstream gen
Signed-off-by: David Shah <davey1576@gmail.com>
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@@ -90,9 +90,9 @@ sudo make install
```
- For an ECP5 blinky on the 45k ULX3S board, first synthesise using `yosys blinky.ys` in `ecp5/synth`.
- - Then run ECP5 place-and route using `./nextpnr-ecp5 --json ecp5/synth/blinky.json --basecfg ecp5/synth/ulx3s_empty.config --bit ecp5/synth/ulx3s.bit`
+ - Then run ECP5 place-and route using `./nextpnr-ecp5 --json ecp5/synth/blinky.json --basecfg ecp5/synth/ulx3s_empty.config --textcfg ecp5/synth/ulx3s_out.config`
+ - Create a bitstream using `ecppack ulx3s_out.config ulx3s.bit`
- Note that `ulx3s_empty.config` contains fixed/unknown bits to be copied to the output bitstream
- - You can also use `--textcfg out.config` to write a text file describing the bitstream for debugging
- More examples of the ECP5 flow for a range of boards can be found in the [Project Trellis Examples](https://github.com/SymbiFlow/prjtrellis/tree/master/examples).