From 5f5ef658ef4719743eb8c76fcf55c27fb5f310b3 Mon Sep 17 00:00:00 2001
From: biemster <l.j.beemster@gmail.com>
Date: Fri, 31 Mar 2023 12:14:51 +0200
Subject: [PATCH] Update README.md

---
 README.md | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/README.md b/README.md
index 09845c4..56efe69 100644
--- 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`