doc: added 'Options' section

boochow · Jul 25, 2018 · 5c049e7 · 5c049e7
1 parent 8d5ea9a
commit 5c049e7
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/README.md b/README.md
@@ -10,6 +10,11 @@ git submodule update --init
 cd micropython; git submodule update --init; cd ..
 cd raspberrypi; make
 ```
+
+## Options
+1. `MICROPY_HW_USBHOST=1` to enable USB keyboard support.
+1. `MICROPY_MOUNT_SD_CARD=1` to mount SD card on /sd in the boot sequence.
+
 ## How to install
 
 1. download `bootcode.bin` and `start.elf` from https://github.com/raspberrypi/firmware/tree/master/boot