nRF5340 MCUBoot single slot using either serial or ACM0

RE: nRF5340 MCUBoot single slot using either serial or ACM0

Øivind — Wed, 11 May 2022 15:26:46 GMT

I believe updating the network core would not be possible. I'll look into it.

RE: nRF5340 MCUBoot single slot using either serial or ACM0

DorianN — Wed, 11 May 2022 13:10:10 GMT

Hi Oivind,

Will give them a shot and post my findings

EXTRA

BTW do you know if it would be possible to update the netcore using such a setup, i.e. using mcuboot with the single slot?

RE: nRF5340 MCUBoot single slot using either serial or ACM0

Øivind — Wed, 11 May 2022 09:56:08 GMT

The mcuboot configs can be set in [project]/child_image/mcuboot.conf
You will likely have to create the child_image directory and mcuboot.conf file.

The modifications you made to nrf5340dk_nrf5340_cpuapp_defconfig should have the same effect if you add them to the project's prj.conf.

This should result in a more elegant setup.

Also, have you tried not including the overlay where you edit the flash? Do you see any change if you remove it and leave everything else the same?

RE: nRF5340 MCUBoot single slot using either serial or ACM0

DorianN — Wed, 11 May 2022 07:54:40 GMT

Forgot to add the overlay conf

nrf5340dk_nrf5340_cpuapp.overlay

/delete-node/ &boot_partition;
/delete-node/ &slot0_partition;

&flash0 {
	/*
	 * For more information, see:
	 * https://docs.zephyrproject.org/latest/guides/dts/legacy-macros.html#legacy-flash-partitions
	 */
	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 0xF0000>;
		};
	};
};

RE: nRF5340 MCUBoot single slot using either serial or ACM0

DorianN — Wed, 11 May 2022 07:41:42 GMT

I have some news for anyone interested

So far I have achieved the following:

1. Enabled and compile with Single slot

2. Enable serial MCUBoot functionality

3. Switch the dev board into bootloader mode

4. Transfer and write and update.bin

Settings for all the above

C:\Users\xxxx\ncs\v1.9.1\bootloader\mcuboot\boot\zephyr

CONFIG_PM=n

CONFIG_MAIN_STACK_SIZE=10240
CONFIG_MBEDTLS_CFG_FILE="mcuboot-mbedtls-cfg.h"

CONFIG_BOOT_SWAP_SAVE_ENCTLV=n
CONFIG_BOOT_ENCRYPT_RSA=n
CONFIG_BOOT_ENCRYPT_EC256=n
CONFIG_BOOT_ENCRYPT_X25519=n

CONFIG_BOOT_UPGRADE_ONLY=n
CONFIG_BOOT_BOOTSTRAP=n

### mbedTLS has its own heap
# CONFIG_HEAP_MEM_POOL_SIZE is not set

### We never want Zephyr's copy of tinycrypt.  If tinycrypt is needed,
### MCUboot has its own copy in tree.
# CONFIG_TINYCRYPT is not set
# CONFIG_TINYCRYPT_ECC_DSA is not set
# CONFIG_TINYCRYPT_SHA256 is not set

CONFIG_FLASH=y
CONFIG_FPROTECT=y

### Various Zephyr boards enable features that we don't want.
# CONFIG_BT is not set
# CONFIG_BT_CTLR is not set
# CONFIG_I2C is not set

CONFIG_LOG=y
CONFIG_LOG_MODE_MINIMAL=y # former CONFIG_MODE_MINIMAL
### Ensure Zephyr logging changes don't use more resources
CONFIG_LOG_DEFAULT_LEVEL=0
### Decrease footprint by ~4 KB in comparison to CBPRINTF_COMPLETE=y
CONFIG_CBPRINTF_NANO=y


#########################################################################
# Declare for single slot and partition size for MCUBoot
CONFIG_PM_PARTITION_SIZE_MCUBOOT=0x10000
CONFIG_SINGLE_APPLICATION_SLOT=y

# Maybe needed TBD
#CONFIG_MCUBOOT_SERIAL_DIRECT_IMAGE_UPLOAD=y
#CONFIG_BOOT_ERASE_PROGRESSIVELY=y

#Enable MCUBoot serial functionality
CONFIG_MCUBOOT_SERIAL=y

#Pin detection for bootloader for different boards
#Use first decalration for a nrf5340 devkit
#pins aer the default ones already decalred in KConfig
CONFIG_BOOT_SERIAL_DETECT_PORT="GPIO_0"
CONFIG_BOOT_SERIAL_DETECT_PIN=23
#CONFIG_BOOT_SERIAL_DETECT_PORT="GPIO_1"
#CONFIG_BOOT_SERIAL_DETECT_PIN=7
#CONFIG_BOOT_SERIAL_DETECT_PORT="GPIO_0"
#CONFIG_BOOT_SERIAL_DETECT_PIN=5

# Check which high value is HIGH --> usually 0 is high
#CONFIG_BOOT_SERIAL_DETECT_PIN_VAL=1
CONFIG_BOOT_SERIAL_DETECT_PIN_VAL=0

# Check if LED is on
CONFIG_MCUBOOT_INDICATION_LED=y

CONFIG_BOOT_SERIAL_UART=y

--------------------------------------------------------------

# Settings inside your project --> proj.conf
CONFIG_BOOTLOADER_MCUBOOT=y
CONFIG_SPEED_OPTIMIZATIONS=y

CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=2304
CONFIG_MAIN_STACK_SIZE=2048
CONFIG_MCUBOOT_GENERATE_CONFIRMED_IMAGE=y

# Enable USB subsystem
CONFIG_USB_DEVICE_STACK=y
CONFIG_BOOT_DELAY=1000

CONFIG_UART_CONSOLE=y

--------------------------------------------------------------

C:\Users\xxxx\ncs\v1.9.1\zephyr\boards\arm\nrf5340dk_nrf5340\nrf5340dk_nrf5340_cpuapp_defconfig

# SPDX-License-Identifier: Apache-2.0

CONFIG_SOC_SERIES_NRF53X=y
CONFIG_SOC_NRF5340_CPUAPP_QKAA=y
CONFIG_BOARD_NRF5340DK_NRF5340_CPUAPP=y

# Enable MPU
CONFIG_ARM_MPU=y

# Enable hardware stack protection
CONFIG_HW_STACK_PROTECTION=y

# Enable TrustZone-M
CONFIG_ARM_TRUSTZONE_M=y

# enable GPIO
CONFIG_GPIO=y

# Enable uart driver
CONFIG_SERIAL=y

# Chanegs needed here
# enable console
CONFIG_CONSOLE=y
CONFIG_UART_CONSOLE=n

Solution is pretty hacky but it works for now.

Will update when I find a more elegant solution

RE: nRF5340 MCUBoot single slot using either serial or ACM0

DorianN — Tue, 10 May 2022 10:03:28 GMT

Is there a sample or some guidelines to make a hello word application with a single slot mcuboot?

RE: nRF5340 MCUBoot single slot using either serial or ACM0

DorianN — Mon, 09 May 2022 13:43:18 GMT

Hi Oivind,

Thanks for the reply.

I will check it out

Do you have any other tips to make this work?

Do I need to mess around with:

\ncs\v1.9.1\bootloader\mcuboot\boot\zephyr\prj.conf

One more thing:

Do I need to put the board in bootloader mode?
I can see that the default button for the 5340DK is GPIO_0 -- port 23 || Button 1

I have had problems trying to communicate with the board using newtmgr. It just hangs

Thanks,

Dorian

RE: nRF5340 MCUBoot single slot using either serial or ACM0

Øivind — Mon, 09 May 2022 13:39:14 GMT

Hi,

CONFIG_MCUMGR_CMD_IMG_MGMT is the issue. It requires a mcuboot_secondary flash partition.

RE: nRF5340 MCUBoot single slot using either serial or ACM0

DorianN — Mon, 09 May 2022 13:26:14 GMT

Just something I found out during my experimentations:

CONFIG_MCUMGR_CMD_IMG_MGMT=y
CONFIG_MCUMGR_CMD_OS_MGMT=y
CONFIG_MCUMGR_CMD_STAT_MGMT=y

require dual bank to function