feat(pycardium): Build bootloader compatible multi image

bootloader/build_multi_image.sh

+#!/bin/sh
+set -e
+
+echo "build multi image" $1 $2 $3 $4
+PYTHON="$1"
+BIN1="$2"
+BIN2="$3"
+BINOUT="$4"
+
+dd if=/dev/zero ibs=1k count=448 | tr "\000" "\377" > "$BINOUT"
+dd if="$BIN1" of="$BINOUT" conv=notrunc
+dd if="$BIN2" of="$BINOUT" conv=notrunc oflag=append
+
+"$PYTHON" "$(dirname "$0")/crc_patch.py" "$BINOUT"

bootloader/meson.build

@@ -20,3 +20,6 @@ executable(
 
 # build_image.sh
 build_image = [files('./build_image.sh'), python3]
+
+# build_multi_image.sh
+build_multi_image = [files('./build_multi_image.sh'), python3]

epicardium/meson.build

@@ -56,7 +56,7 @@ elf = executable(
   ],
 )
 
-custom_target(
+epicardium_bin = custom_target(
   name + '.bin',
   build_by_default: true,
   output: name + '.bin',

pycardium/meson.build

@@ -63,10 +63,18 @@ elf = executable(
   ],
 )
 
-custom_target(
+bin = custom_target(
   name + '.bin',
   build_by_default: true,
   output: name + '.bin',
   input: elf,
   command: [build_image, '@INPUT@', '@OUTPUT0@'],
 )
+
+custom_target(
+  name + '_epicardium.bin',
+  build_by_default: true,
+  output: name + '_epicardium.bin',
+  input: [epicardium_bin, bin],
+  command: [build_multi_image, '@INPUT@', '@OUTPUT0@'],
+)