mcuboot starting documentation

2026-07-04 14:23:37 -04:00
parent 6f163e1250
commit d20456a39c
766 changed files with 250 additions and 75895 deletions
@@ -19,12 +19,41 @@ west flash --runner pyocd # had to su root first to run this (after running nix

 # MCUBoot
 cd ~/utat-dev/zephyrproject
-west build -p always -b nucleo_g431rb bootloader/mcuboot/boot/zephyr -d build/mcuboot   -- -DEXTRA_CONF_FILE=mcuboot-nucleo-g431rb.conf
+# Configure the DTS for partition sizes: https://docs.zephyrproject.org/latest/build/dts/intro-scope-purpose.html
+# https://docs.zephyrproject.org/latest/build/dts/api/bindings/mtd/fixed-partitions.html
+nvim "zephyr/boards/st/nucleo_g431rb/nucleo_g431rb.dts"
+
+# Create a private key: https://docs.mcuboot.com/readme-zephyr.html
+./scripts/imgtool.py keygen -k mykey.pem -t rsa-2048
+
+# Create its public key
+openssl rsa -in mykey.pem -pubout > pubkey.pem
+
+# Set up signing: https://docs.mcuboot.com/readme-zephyr.html
+# ./bootloader/mcuboot/samples/zephyr/Makefile
+python scripts/imgtool.py sign \
+    --key mykey.pem \
+    --header-size 0x200 \
+    --align 8 \
+    --version 1.2 \
+    --slot-size 0x8000 \
+    ./
+
+
+# Add the key file path to the KConfig https://docs.zephyrproject.org/latest/build/kconfig/setting.html
+echo "
+
+# Set the key file
+CONFIG_BOOT_SIGNATURE_KEY_FILE=pubkey.pem" >> "./zephyr/boards/st/nucleo_g431rb/nucleo_g431rb_defconfig"
+
+
+
+west build -p always -b nucleo_g431rb bootloader/mcuboot/boot/zephyr -d build/mcuboot -- -DEXTRA_CONF_FILE=mcuboot-nucleo-g431rb.conf
 west flash -d build/mcuboot --runner pyocd # (as root, with nix develop)

 cd zephyr
 # Package 1
-west build -p always -b nucleo_g431rb samples/basic/blinky -d build/app  -- -DCONFIG_BOOTLOADER_MCUBOOT=y -DCONFIG_MCUBOOT_GENERATE_UNSIGNED_IMAGE=y
+west build -p always -b nucleo_g431rb samples/basic/blinky -d build/app -- -DCONFIG_BOOTLOADER_MCUBOOT=y -DCONFIG_MCUBOOT_GENERATE_UNSIGNED_IMAGE=y
 west flash -d build/app --runner pyocd  # (as root, with nix develop)

 # Package 2