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/**
@page Zigbee_OTA_Client_Router application
@verbatim
******************************************************************************
* @file Zigbee/Zigbee_OTA_Client_Router/readme.txt
* @author MCD Application Team
* @brief Description of the Zigbee OTA Cluster application as a client
* using a centralized network.
******************************************************************************
*
* Copyright (c) 2020 STMicroelectronics. All rights reserved.
*
* This software component is licensed by ST under Ultimate Liberty license
* SLA0044, the "License"; You may not use this file except in compliance with
* the License. You may obtain a copy of the License at:
* www.st.com/SLA0044
*
******************************************************************************
@endverbatim
@par Application Description
How to use OTA cluster as a client on a centralized Zigbee network.
The purpose of this application is to show how to create a Zigbee centralized network,
and how to operate a firmware upgrade using the OTA cluster. Once the Zigbee mesh network is created,
the user can start an OTA upgrade from server to client through push buttons
SW1 (M0 wireless coprocessor firmware) and SW2 (M4 application firmware).
In order for the client to persist its stack parameters data, Zigbee persistence data mechamisim
is used on the Zigbee_OTA_Client_Router appilcation. This allows the client to reconnect to the
coordinator network after the upgrade procedure.
For this application it is requested to have:
- 1 STM32WB55xx (Nucleo or USB dongle) board loaded with:
- wireless coprocessor : stm32wb5x_Zigbee_FFD_fw.bin
- application : Zigbee_OTA_Server_Coord
- 1 or more STM32WB55xx board loaded with:
- wireless coprocessor : stm32wb5x_Zigbee_FFD_fw.bin
- application : Zigbee_OTA_Client_Router
IMPORTANT PREREQUISITES:
On Zigbee_OTA_Server_Coord a binary image has to be loaded at @0x08030000 before starting the process.
It can be FW application example (compatible with Ota settings, see Zigbee_OnOff_Client_Router_Ota for details)
or encrypted Copro Wireless binary.
Demo use case :
This demo shows how to use OTA cluster for a firmware upgrade.
1. Flash splitting on Zigbee_OTA_Client_Router application
The STM32WB55xx internal Flash division on the OTA client side is set as follow:
@0x08000000 +-----------------------------+
| |
| OTA main app |
| | @0x0801FFFF
@0x08020000 +-----------------------------+
| |
| NVM data |
| |
@0x08030000 +-----------------------------+ @0x0802FFFF
| |
| OTA upgrade available space |
| (remaining free space) |
| | limit @ given by SFSA (Option Byte)
+-----------------------------+
2. OTA file format used by the server
The OTA upgrade process relies on OTA file format comaptible files.
As a result, the OTA file format used for STM32WB55xx upgrade is as folow:
+----------------------------+
| ZCL OTA Header |
+----------------------------+
| OTA upgrade image tag |
+----------------------------+
| Firmware data |
+----------------------------+
3. Generation of the OTA file from raw firmware
If the OTA file format discribed above is used in the data exchange between
the OTA client and server, the OTA server stored the raw binary in Flash.
The OTA file format exchanged during the upgrade process is dynamically generated
at running time during the data transfer (ZCL OTA block request/response sequence).
4. Update procedure diagram
+---------------------------------+ +---------------------------------+
| Device 1 | | Device 2 |
| Zigbee OTA server | | Zigbee OTA client |
| | | |
+---------------------------------+ +---------------------------------+
| | /* Initalisation phase */ | |
| Before starting FW for update | | |
| must be written at following | /* OTA server discovering */ | |
| @ = 0x08030000 | | |
| | ZbZclOtaClientDiscover | |
| | <----------------------------------------- | |
| | -----------------------------------------> | |
| | | |
| | | Application performs a delete |
| | | of FLASH memory sectors |
| | | starting from @ = 0x08030000 to |
| | | SFSA (Option Byte) limit |=> BLUE LED ON
| | /* Upgrade phase */ | |
| | | |
| | /* Image Notify request */ | |
| | | |
| Push Button | ZbZclOtaServerImageNotifyReq | |
| - SW1 (OTA for APP Update) | -----------------------------------------> | |
| - SW2 (OTA for Copro Update) | <----------------------------------------- | |
| | | |
| | /* Query Next Image request */ | |
| | | |
| | ZbZclOtaClientQueryNextImageReq | |
| | <----------------------------------------- | |
| | -----------------------------------------> | |
| | | |
| | | |
| | /* OTA block transfer */ | |
| | -->| |
| | /* ZbZclOtaClientImageTransferStart */ | | |=> GREEN LED TOGGLING
| | ---| |
| | | |
| | /* Block request */ | |
| | <----------------------------------------- | |
| A RAM cache is used to send | -----------------------------------------> | Each time update RAM cache is |
| OTA file format data | . | full (or going to be next time) |
| (reduce Flash reads) | . | write it to Flash memory |
| | /* Block request */ | |
| | <----------------------------------------- | |
| | -----------------------------------------> | |
| | | |
| | | |
| | /* Verifying the image */ | |
| | -->| At the end of the block, |
| | /* ZbZclOtaClientImageTransferStart */ | | transfer write the update RAM |
| | ---| cache to Flash for the last |
| | | time |
| | | |
| | | Check the firmware validity |=> GREEN LED ON
| | | with FUOTA magic keyword |
| | | |
| | /* Upgrade End */ | |
| | | |
| | /* Upgrade End request */ | |
| | <----------------------------------------- | |
| | -----------------------------------------> | |
| | | At the end of data transfer, |
| Display FUOTA Transfer details: | | wait for the device to reboot |
| - Transfer size | | - BLUE LED OFF |
| - Transfer time | | - GREEN LED OFF |
| - Average throughput | | |
| | -->| |
| | /* Reboot */ | | On Reboot: |
| | ---| |
| | | If File_Type is FW_APP, boot on |
| | | Zigbee_OnOff_Client_Router_Ota |
| | | or any appilcation supporting |
| | | OTA at @ 0x30000 |
| | | (Zigbee_OnOff_Client_Router_Ota)|
| | | |
| | | If File_Type is |
| | | FW_COPRO_WIRELESS boot on FUS. |
| | | FUS will then install encrypted |
| | | binary on Copro Wireless side. |
| | | |
| | /* Persistent data management */ | |
| | | |
| | -->| |
| | /* Clear NVM data */ | | |<= PushB SW2
| | ---| |
| | | |
+---------------------------------+ +---------------------------------+
To setup the application :
a) Open the project, build it and load your generated application on your STM32WB devices.
To run the application :
a) Start the first board. It must be the coordinator of the Zigbee network so in this demo application it is
the device running Zigbee_OTA_Server_Coord application (Device2 in the above diagram).
Wait for the Blue LED (LED1) ON.
b) Start the second board. This board is configured as Zigbee router and will be attached to the network created
by the coordinator. Do the same for the other boards if applicable.
At this stage the second board tries to start from persistence this leads to two choices:
- Persistence Data read from NVM are valid -> the router takes back is role in the network.
GREEN LED2 is ON indicating a restart form persistence.
- No persitence data found or wrong data,a fresh start is perfomed, the Zigbee network is automatically created
and BLUE LED (LED1) is ON on all devices.
Note: On the Zigbee OTA client routers, the Blue LED is ON when the initialisation process
(see detailled procedure diagram above) is successfully done.
c) If the user power cycle the Device 2, Persistence Data are read back and cluster attribute (LED3 state) restored.
The device start from persistence and GREEN LED LED2 is on.
d) Push Button SW2 is used to delete NVM (fresh start will be done on next start up ,reproduce a)
Note: when LED1, LED2 and LED3 are toggling it is indicating an error has occurred on application.
@par Keywords
Zigbee
@par Hardware and Software environment
- This example runs on STM32WB55xx devices.
- For the Zigbee_OTA_Server_Coord application, a STM32WB55xx USB dongle can be used.
- This example has been tested with an STMicroelectronics STM32WB55RG_Nucleo
board and can be easily tailored to any other supported device
and development board.
- On STM32WB55RG_Nucleo, the jumpers must be configured as described
in this section. Starting from the top left position up to the bottom
right position, the jumpers on the Board must be set as follows:
CN11: GND [OFF]
JP4: VDDRF [ON]
JP6: VC0 [ON]
JP2: +3V3 [ON]
JP1: USB_STL [ON] All others [OFF]
CN12: GND [OFF]
CN7: <All> [OFF]
JP3: VDD_MCU [ON]
JP5: GND [OFF] All others [ON]
CN10: <All> [OFF]
@par How to use it ?
=> Loading of the stm32wb5x_Zigbee_FFD_fw.bin binary
This application requests having the stm32wb5x_Zigbee_FFD_fw.bin binary flashed on the Wireless Coprocessor.
If it is not the case, you need to use STM32CubeProgrammer to load the appropriate binary.
All available binaries are located under /Projects/STM32_Copro_Wireless_Binaries directory.
Refer to UM2237 to learn how to use/install STM32CubeProgrammer.
Refer to /Projects/STM32_Copro_Wireless_Binaries/ReleaseNote.html for the detailed procedure to change the
Wireless Coprocessor binary.
=> Getting traces
To get the traces you need to connect your Board to the Hyperterminal (through the STLink Virtual COM Port).
The UART must be configured as follows:
- BaudRate = 115200 baud
- Word Length = 8 Bits
- Stop Bit = 1 bit
- Parity = none
- Flow control = none
=> Running the application
Refer to the Application description at the beginning of this readme.txt
* <h3><center>© COPYRIGHT STMicroelectronics</center></h3>
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