Update README.md

biemster · Mar 31, 2023 · 5f5ef65 · 5f5ef65
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diff --git a/README.md b/README.md
@@ -8,3 +8,8 @@ Custom firmware for a 3-key + rotary encoder macropad (https://hackaday.io/proje
 - if on original firmware: connect P1.5 to GND and connect USB
 - if on this firmware: press key1 while connecting USB
 - `$ make flash`
+
+### configure keys:
+1. `$ isp55e0 --data-dump flashdata.bin`
+2. edit first 6 bytes of this binary (3 keys, plus 3 for the knob), and write it back:
+3. `$ isp55e0 --data-flash flashdata.bin`