wip: stm32f4 example

intercreate · Sep 2, 2024 · 7e9b7d0 · 7e9b7d0
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diff --git a/dutfirmware/README.md b/dutfirmware/README.md
@@ -127,3 +127,16 @@ And then you only have to flash once:
 ```
 west flash --runner=linkserver -d build/mimxrt1060_evkb --hex-file a_smp_dut_8192_1_8192.merged.hex
 ```
+
+### ST
+
+#### stm32f4_disco
+
+> Note: documented on Zephyr `v3.7.0-1987-g1540bd7d`
+
+Create bootloader:
+
+```
+west build -b stm32f4_disco -d build/stm32f4_disco_mcuboot bootloader/mcuboot/boot/zephyr -- -DCONFIG_BUILD_OUTPUT_HEX=y -DEXTRA_DTC_OVERLAY_FILE="${ENVR_ROOT}/stm32f4_disco_flash_overlay.dts;${ENVR_ROOT}/stm32f4_disco_serial_overlay.dts;${ENVR_ROOT}/stm32f4_disco_serial_recovery_button_overlay.dts" -DEXTRA_CONF_FILE="${ENVR_ROOT}/mcuboot_serial.conf"
+```
+
diff --git a/dutfirmware/envr-default b/dutfirmware/envr-default
@@ -8,5 +8,6 @@ PYTHON_VENV=.venv
 # override here or in envr-local
 JLINK=C:/Program Files/SEGGER/JLink
 LINK_SERVER=C:/NXP/LinkServer_1.6.133
+OPENOCD=$HOME/.local/xpack-openocd-0.12.0-4/bin
 
 [ALIASES]
diff --git a/dutfirmware/mcuboot_serial.conf b/dutfirmware/mcuboot_serial.conf
@@ -0,0 +1,23 @@
+CONFIG_MAIN_STACK_SIZE=32768
+
+# Enable SMP serial DFU
+CONFIG_CONSOLE=n
+CONFIG_LOG=n
+CONFIG_UART_CONSOLE=n
+CONFIG_SERIAL=y
+CONFIG_UART_LINE_CTRL=y
+CONFIG_MCUBOOT_SERIAL=y
+CONFIG_BOOT_MGMT_ECHO=y
+CONFIG_BOOT_SERIAL_IMG_GRP_HASH=y
+CONFIG_BOOT_SERIAL_IMG_GRP_IMAGE_STATE=y
+
+# Allow upload to the primary slot
+CONFIG_MCUBOOT_SERIAL_DIRECT_IMAGE_UPLOAD=y
+
+# Serial Recovery
+CONFIG_BOOT_SERIAL_NO_APPLICATION=y
+
+# # Measured ~7.1 kB/s on 115200 baud (STM32F407 Discovery)
+CONFIG_BOOT_MAX_LINE_INPUT_LEN=4096
+CONFIG_BOOT_LINE_BUFS=2
+CONFIG_BOOT_SERIAL_MAX_RECEIVE_SIZE=4096
diff --git a/dutfirmware/stm32f4_disco_flash_overlay.dts b/dutfirmware/stm32f4_disco_flash_overlay.dts
@@ -0,0 +1,24 @@
+&flash0 {
+	partitions {
+		compatible = "fixed-partitions";
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		boot_partition: partition@0 {
+			label = "mcuboot";
+			reg = <0x00000000 0x10000>;
+		};
+		slot0_partition: partition@10000 {
+			label = "image-0";
+			reg = <0x00010000 0x40000>;
+		};
+		slot1_partition: partition@50000 {
+			label = "image-1";
+			reg = <0x00050000 0x40000>;
+		};
+		storage_partition: partition@7e000 {
+			label = "storage";
+			reg = <0x0007e000 DT_SIZE_K(8)>;
+		};
+	};
+};
diff --git a/dutfirmware/stm32f4_disco_serial_overlay.dts b/dutfirmware/stm32f4_disco_serial_overlay.dts
@@ -0,0 +1,5 @@
+/ {
+    chosen {
+        zephyr,uart-mcumgr = &usart2;
+    };
+};
diff --git a/dutfirmware/stm32f4_disco_serial_recovery_button_overlay.dts b/dutfirmware/stm32f4_disco_serial_recovery_button_overlay.dts
@@ -0,0 +1,5 @@
+/ {
+    aliases {
+        mcuboot-button0 = &user_button;
+    };
+};