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Update README.md

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Amir Gonnen 2019-09-25 01:21:54 +03:00 committed by GitHub
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@ -23,9 +23,15 @@ Here is the command to build ESP32 + LittlevGL which is compatible with ILI9341
```
make -C mpy-cross
make -C ports/esp32 LV_CFLAGS="-DLV_COLOR_DEPTH=16" deploy
```
If you plan to use the [Pure Micropython Display Driver](https://blog.littlevgl.com/2019-08-05/micropython-pure-display-driver), you need to define `LV_COLOR_16_SWAP=1` as well:
```
make -C ports/esp32 LV_CFLAGS="-DLV_COLOR_DEPTH=16 -DLV_COLOR_16_SWAP=1" deploy
```
This make command will create ESP32 port of Micropython, and will try to deploy it through USB-UART bridge.
`LV_CFLAGS` are used to override color depth and swap mode, for ILI9341 compatibility.
These flags would also allow you running the [Pure Micropython ILI9341 driver](https://blog.littlevgl.com/2019-08-05/micropython-pure-display-driver), if you want.