MF Firmware related upgrade instructions

In the process of using the MF face recognition module, if there is a firmware bug, a new function firmware release, a mistakenly erased firmware, font resources, and image resources, then the firmware needs to be restored by burning.

MF face recognition module firmware, resource description

MF Face Recognition Module The firmware, font resources, picture resources, descriptions are as follows:

Type Burning Address Length Description
Firmware 0x000000
Face Model
Font Resources
Picture Resources
Board level configuration 0x7FF000 4 KB
Face Information 0x800000 64 KB

After getting the MF module, the general developer does not need to care about the resource distribution

MF firmware description

  • VIS: Visible light (VIS)

  • IR: infrared light (IR)

Firmware classification Direction Protocol Identification method wechat Number of firmware types
MF0 trial version module horizontal version, vertical version bin vis 2
MF1 offline module horizontal and vertical bin/json vis+ir 8
MF2 WeChat semi-finished product Horizontal version, vertical version bin vis Support 2
MF4 WeChat (finished product) Vertical version bin vis Support 1
MF5 WeChat (finished product) Vertical version bin/json vis Support 2
  • Font resources
  • Picture resources

MF firmware burning (upgrade, restore factory configuration) steps

In the process of using the MF face recognition module, if there is a firmware bug, a new function firmware release, a mistakenly erased firmware, font resources, and image resources, then the firmware needs to be restored by burning.

Preparation:

Before upgrading and restoring the factory configuration MF face recognition module, we need to prepare software and hardware.

Hardware preparation:

  • MF Face Recognition Module

  • USB Type-C data cable

Software preparation:

  • Burning software: kflash_gui (Kflash_gui v1.6.5 version is used here)

    Download link:

  • Github: kflash_gui

  • Sipeed: Sipeed official download site-kflash_gui

  • Burn resource files (burn according to the situation): MF face recognition module firmware, algorithm model files, font resource files, image resource files

    Get the resource files and send a unified email to: Email: Support@sipeed.com

    The recommended email format is as follows:

    Problem type: [MF firmware resource acquisition]

    Use hardware/firmware version: [MF0/MF1/MF2/MF4/MF5]

    Content: [Get the latest firmware/Firmware is missing/Model is missing (describe the relevant situation)]

    Machine code: [xxxxxxxxxxxxxxxxxxxxx (only required when the model is lost)]

Burn firmware, resource files

Use the USB Type-C data cable to connect the MF face recognition module to the computer

MF1 connect USB

Open Kflash_gui, select the file to be burned, select the version (default is automatic selection, if the burn fails, select MaixDuino), select the serial port number (CH522 has two serial ports, try the other one if it fails), configure the wave Special rate (default is 150000, if programming fails, reduce the baud rate appropriately, such as 115200)

image-20200806103433410

image-20200806105056527

How to get Key (Machine Code)

During use, if the model of the module is lost or needs to be replaced, you need to send the Key to Support@sipeed.com

The recommended email format is as follows:

First download key_gen.bin

After using the kflash_gui to burn the firmware ken_gen.bin into the module, open the serial port and the baud rate is 115200,8,N,1

kflash_gui is K210 firmware burning tool, source code: Sipeed/kflash_gui

It is recommended to use XCOM to view the serial port information

Tap DTR and release it to reset the module and see the startup information

MF Firmware Version Description

Due to the different imaging directions of the cameras, there are two firmware versions: horizontal and vertical versions;

How to confirm the firmware corresponding to the camera: (identified by the camera silkscreen)

Horizontal board Vertical board