VRCANReaderBoard

Bootloader Version History

All binary files are located under the SVN server: http://readonly:secret@svn.ventureresearch.com/svn/source/projects/STM32/STM32G474RE_Boot/Release.

• 1.03.03 (5/3/2024, latest version, switch bank when erase flash page)
• 1.03 (1/3/2024, update eeprom library)
• 1.02 (9/5/2023, rebuild for the RELEASE version)

wget http://readonly:secret@svn.ventureresearch.com/svn/source/projects/STM32/STM32G474RE_Boot/Release/1.03.03/0x0000/STM32G474RE_Boot.bin -O /tmp/STM32G474RE_Boot.bin

Application Version History

All binary files are located under the SVN server: http://readonly:secret@svn.ventureresearch.com/svn/source/projects/STM32/CAN_Reader_1.0/Release.

Board Rev 1.0

• 1.0.11 (11/29/2023, latest version, add multiple PASSTHRU commands)

wget http://readonly:secret@svn.ventureresearch.com/svn/source/projects/STM32/CAN_Reader_1.0/Release/1.0.11/0x10000/CAN_Reader_1.0.bin -O /tmp/CAN_Reader_1.0.bin

Board Rev 2.0

• 2.0.4 (6/13/2025, latest version, introduce SCANNERHEARTBEAT, HFREADERENABLED, etc.)
• 2.0.3 (5/3/2024, support the new bootloader - 1.03.03)
• 2.0.2 (4/12/2024, control barcode scanner)
• 2.0.1 (12/4/2023, new mercury api to support M7e)

wget http://readonly:secret@svn.ventureresearch.com/svn/source/projects/STM32/CAN_Reader_1.0/Release/2.0.4/0x10000/CAN_Reader_1.0.bin -O /tmp/CAN_Reader_1.0.bin

Programming VR CAN Reader Board v2.0

Preparation

1. Required items: Linux Board with CAN bus connection, ST-LINK programmer

Bootloader Programming

Bin file location: C:\Users\mfc\svn\vr\source\projects\STM32\STM32G474RE_Boot\Release\1.03.03\0x0000\STM32G474RE_Boot.bin

1. Open STM32CubeProgrammer program.
2. Select 'Programming' section on the left menu.
3. Ensure settings are correct, and click the 'Start automatic mode' button.
   1. File Path for correct Boot Loader
   2. Start address 0x08000000
   3. Verify Programming checked
   4. Full Chip Erase checked
   5. Download File checked
   6. Option Bytes commands set to "-ob rdp=0xbb" for Code Readout Protection
4. Plug in the STM32 programming cable into the board.
5. Power on the board.
6. Watch the programming output to see if the board is programmed.

CAN Reader Board Firmware Programming

1. Reset the board by unplugging and replugging in the Power / CAN cable.
2. Watch the bootloader lights pattern to show fast blinking.
3. Find the VRSerial of the CAN Reader Board you want to flash. If the board is brand-new, the default VRSerial is 00170.
4. Execute the commands below to flash (the latest firmware version is 2.0.4):

cd /tmp
wget http://readonly:secret@svn.ventureresearch.com/svn/linux/testing/comtech/update-can-reader.sh -O update-can-reader.sh
bash update-can-reader.sh

Finally, verify the build version:

> get build
get build;ACK,
1:Jun 13 2025 13:09:44 r1955 BLv10303
> get version
get version;ACK,
1:2.0.4

VRSerial Setup

1. If the board was flashed before, the VRSerial was already setup. Otherwise, setup a new VRSerial as the steps below:
2. After programming, the board should reboot into the application. The application will connect over CAN and you should see it at address VRSN00000170.
3. Set a VRSerial:

VRSN170 SET VRSERIAL 12345

1. Set a ComponentID:

VRSN170 SET COMPONENTID 123

1. Commit:

VRSN170 COMMIT

1. Done! Apply a board serial number to the board.

Others

Flash in Production by STLink

Refer the steps

Flash in Production by SEGGER J-Link

See M:\$$-PRODUCTS\CAN Reader Board\Flash\Flash CAN Reader Board 20240417.pdf

Flash App Over CAN

Prerequisites:

• Install the flash tool on the VR Linux Board:

opkg update
opkg install vr-canboot

• Download the latest binary file you want to flash.

• Write down the VR Serial Number of the CAN Reader Board.

Start to flash by the command:

echo "CAN RESET" | nc localhost 2020 | grep "ACK"
sleep 1
vr-canboot -v -d -a <Serial Number> -f <Binary File> --start=0x10000