Add scripts to build serialnumber UF2 file

Signed-off-by: Daniel Schaefer <dhs@frame.work>

Author: JohnAZoidberg

scripts/serial.py

@@ -0,0 +1,29 @@
+#!/usr/bin/env python3
+import zlib
+
+ledmatrix_1 = b'FRAKDEAM1100000000' # POC 1
+ledmatrix_2 = b'FRAKDEBZ4100000000' # EVT 1, config 1
+ledmatrix_3 = b'FRAKDEBZ4200000000' # EVT 1, config 2 (27k resistor)
+
+# This section is for modifying
+selected   = ledmatrix_2
+year       = b'3' # 2023
+week       = b'01'
+day        = b'1'
+part_sn    = b'0001'
+
+config     = selected[8:10]
+serial_rev = b'\x01'
+snum       = selected
+print(serial_rev + snum)
+snum       = snum[0:8] + config + year + week + day + part_sn
+
+checksum   = zlib.crc32(serial_rev + snum)
+print(serial_rev + snum)
+
+print('Checksum:', hex(zlib.crc32(snum)))
+print('Digest:  ', hex(checksum))
+with open('serial.bin', 'wb') as f:
+    f.write(serial_rev)
+    f.write(snum)
+    f.write(checksum.to_bytes(4, 'little'))

scripts/serial.sh

@@ -0,0 +1,3 @@
+#!/bin/sh
+./serial.py
+../qmk_firmware/util/uf2conv.py serial.bin -o serial.uf2 -b 0x100ff000 -f rp2040 --convert