nRF5340 netcore update with serial recovery

RE: nRF5340 netcore update with serial recovery

Tyler Grunenwald — Mon, 24 Jun 2024 21:15:54 GMT

To fix "Missing dependencies: DT_HAS_ZEPHYR_SIM_FLASH_ENABLED"
Add CONFIG_ADD_MCUBOOT_MEDIATE_SIM_FLASH_DTS=y to your app's prj.conf

The required Kconfigs to enable serial recovery mode for app and net cores are as follows:

prj.conf:

# Use mcuboot
CONFIG_BOOTLOADER_MCUBOOT=y

# Needed to support serial recovery of NET core
CONFIG_NRF53_UPGRADE_NETWORK_CORE=y
CONFIG_ADD_MCUBOOT_MEDIATE_SIM_FLASH_DTS=y

child_image/mcuboot.conf:

# Sanity / nice-to-have
CONFIG_MCUBOOT_INDICATION_LED=y

# Support MCUBoot serial recovery mode
CONFIG_MCUBOOT_SERIAL=y
CONFIG_UART_CONSOLE=n

# Decrease memory footprint
CONFIG_SIZE_OPTIMIZATIONS=y

# Support serial recovery of the NET core
CONFIG_FLASH_SIMULATOR=y
CONFIG_FLASH_SIMULATOR_DOUBLE_WRITES=y
CONFIG_FLASH_SIMULATOR_STATS=n
CONFIG_BOOT_IMAGE_ACCESS_HOOKS=y
CONFIG_NRF53_RECOVERY_NETWORK_CORE=y
CONFIG_MCUBOOT_SERIAL_DIRECT_IMAGE_UPLOAD=y

For a quick way to check if the firmware was actually updated, see CONFIG_BOOT_BANNER_STRING which can be set for both app and net cores via prj.conf and child_image/hci_ipc.conf respectively

The NET core prints logs on VCOM0

RE: nRF5340 netcore update with serial recovery

Raoul — Fri, 11 Aug 2023 07:53:45 GMT

Hi Alex,

I haven't gotten to the bottom of this yet, sorry. Things are slowly returning to normal here now so I hope to find an answer soon.

Meanwhile, my colleague has a github repo with various bootloader samples and I see that there has been a recent addition of serial updates on netcore. Would you mind taking a look, trying to build it on your machine and comparing to your current setup?

Best regards,

Raoul

RE: nRF5340 netcore update with serial recovery

Raoul — Thu, 27 Jul 2023 21:58:17 GMT

Hi Ryisen,

Just wanted to let you know that I have taken over this case, as Kenneth is now on holiday. We are busy during the summer, but I'll try to get back to you soon.

Best regards,

Raoul

RE: nRF5340 netcore update with serial recovery

Ryisen — Mon, 24 Jul 2023 07:35:23 GMT

So I got back to this project and added the Kconfig parameters from the peripheral_uart sample to my central_bas project.

However, CONFIG_FLASH_SIMULATOR cannot be enabled because "CONFIG_FLASH_SIMULATOR was assigned the value y, but got the value n. Missing dependencies: DT_HAS_ZEPHYR_SIM_FLASH_ENABLED". There is however no Kconfig fragment to enable this.

And with CONFIG_NRF53_RECOVERY_NETWORK_CORE, I get "CONFIG_NRF53_RECOVERY_NETWORK_CORE was assigned the value y, but got the value n. Missing dependencies: n"

How can I solve these issues?

Best regards,

Alex

prj.conf of central_bas:

#
# Copyright (c) 2019 Nordic Semiconductor ASA
#
# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
#
CONFIG_NCS_SAMPLES_DEFAULTS=y

CONFIG_BT=y
CONFIG_BT_DEBUG_LOG=y
CONFIG_BT_CENTRAL=y
CONFIG_BT_SMP=y
CONFIG_BT_GATT_CLIENT=y
CONFIG_BT_GATT_DM=y

# was before CONFIG_HEAP_MEM_POOL_SIZE=1024
CONFIG_HEAP_MEM_POOL_SIZE=2048 
#CONFIG_MAIN_STACK_SIZE=4096

CONFIG_BT_BAS_CLIENT=y

CONFIG_BT_SCAN=y
CONFIG_BT_SCAN_FILTER_ENABLE=y
CONFIG_BT_SCAN_UUID_CNT=1
CONFIG_BT_PRIVACY=y

CONFIG_BT_SETTINGS=y
CONFIG_FLASH=y
CONFIG_FLASH_PAGE_LAYOUT=y
CONFIG_FLASH_MAP=y
CONFIG_NVS=y
CONFIG_SETTINGS=y

CONFIG_DK_LIBRARY=y

# Enable nordic security backend and PSA APIs
CONFIG_NRF_SECURITY=y
CONFIG_MBEDTLS_PSA_CRYPTO_C=y

CONFIG_MBEDTLS_ENABLE_HEAP=y
CONFIG_MBEDTLS_HEAP_SIZE=8192
CONFIG_PSA_CRYPTO_DRIVER_OBERON=n
CONFIG_PSA_CRYPTO_DRIVER_CC3XX=y

### START added from peripheral_UART example
# Enable the UART driver
CONFIG_UART_ASYNC_API=y
CONFIG_NRFX_UARTE0=y
#CONFIG_NRFX_UARTE1=y 
CONFIG_SERIAL=y

CONFIG_GPIO=y

# Make sure printk is not printing to the UART console
CONFIG_CONSOLE=y
CONFIG_UART_CONSOLE=y

# Enable the NUS service
CONFIG_BT_NUS=y
### END added from peripheral_UART example

### Added for MCUBoot as first-stage bootloader ###
CONFIG_BOOTLOADER_MCUBOOT=y
CONFIG_MCUBOOT_IMAGE_VERSION="1.0.0+0" # maj.min.rev+build

### Some command handlers require a large stack. Important for mcumgr, would otherwise timeout
CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=4096

### Update netcore
CONFIG_NRF53_UPGRADE_NETWORK_CORE=y
CONFIG_ADD_MCUBOOT_MEDIATE_SIM_FLASH_DTS=y

prj.conf of mcuboot:

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
CONFIG_NRF_RTC_TIMER_USER_CHAN_COUNT=0

### Added for serial recovery ###
CONFIG_MCUBOOT_SERIAL=y
CONFIG_BOOT_SERIAL_UART=y
#CONFIG_MCUBOOT_INDICATION_LED=y
### Only CONFIG_UART_CONSOLE=n should be necessary
CONFIG_UART_CONSOLE=n
#CONFIG_CONSOLE=n
#CONFIG_CONSOLE_HANDLER=n

### Enable wait for serial recovery ###
CONFIG_BOOT_SERIAL_WAIT_FOR_DFU=y
CONFIG_BOOT_SERIAL_WAIT_FOR_DFU_TIMEOUT=1000

### The following configurations are required to support serial recovery of the network image
CONFIG_PCD_APP=y

CONFIG_FLASH_SIMULATOR=y
CONFIG_FLASH_SIMULATOR_DOUBLE_WRITES=y
CONFIG_FLASH_SIMULATOR_STATS=n

CONFIG_MCUBOOT_SERIAL_DIRECT_IMAGE_UPLOAD=y
CONFIG_BOOT_IMAGE_ACCESS_HOOKS=y
CONFIG_NRF53_RECOVERY_NETWORK_CORE=y
CONFIG_UPDATEABLE_IMAGE_NUMBER=1

prj.conf of hci_rpmsg:

CONFIG_IPC_SERVICE=y
CONFIG_MBOX=y

CONFIG_HEAP_MEM_POOL_SIZE=8192

CONFIG_MAIN_STACK_SIZE=512
CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=512

CONFIG_BT=y
CONFIG_BT_HCI_RAW=y
CONFIG_BT_HCI_RAW_RESERVE=1
CONFIG_BT_MAX_CONN=16

CONFIG_BT_CTLR_ASSERT_HANDLER=y

# Workaround: Unable to allocate command buffer when using K_NO_WAIT since
# Host number of completed commands does not follow normal flow control.
CONFIG_BT_BUF_CMD_TX_COUNT=10

RE: nRF5340 netcore update with serial recovery

Ryisen — Wed, 05 Jul 2023 05:53:20 GMT

Alright, I will try to get it to work with this

RE: nRF5340 netcore update with serial recovery

Kenneth — Tue, 04 Jul 2023 11:12:34 GMT

Hello,

Due to summer vacation we are slightly reduced staff, so can you take a look at the peripheral uart example that show how you for instance can enable serial recovery of the network core:
https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/samples/bluetooth/peripheral_uart/README.html#

Kenneth