multiple firmware configs at the same time

README.md

@@ -3,16 +3,36 @@
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-## How to clone and compile?
+## How to clone ? (READ THIS OR YOU WILL FAIL)
 
 ```
 git clone --recursive git@github.com:bobbycar-graz/bobbycar-boardcomputer-firmware.git
 cd bobbycar-boardcomputer-firmware/
 ./esp-idf/install.sh
-. esp-idf/export.sh
-idf.py -p /dev/ttyUSB0 -b 921600 flash monitor
+./switchconf.sh feedc0de
 ```
 
+## How to compile
+Also do the initialization if you use an IDE, otherwise build will fail.
+
+```
+# before you try to build anything, always do this first:
+. export.sh
+
+# if needed, switch to the right configuration for your hardware (run with --list to list available configurations)
+./switchconf.sh feedc0de
+
+# flash bootloader, partition table and app (only do once)
+idf.py -p /dev/ttyUSB0 -b 921600 flash monitor
+
+# flash only app (do this for development as it is much faster)
+idf.py -p /dev/ttyUSB0 -b 921600 app-flash monitor
+```
+
+if you are inside monitor, hit Ctrl+T then Ctrl+X to exit.
+
+Hit Ctrl+T then Ctrl+A to reflash the app and return to monitor (very handy during development)
+
 ## How to wire all connections?
 
 ![Wiring diagram](/img/wiring.png)