Updating Firmware

dingoPDM and dingoPDM-Max firmware is updated using the onboard USB-C connection and the STM32 USB bootloader.

CANBoard does not have USB, see CANBoard.

Latest Firmware

The latest built firmware can be found on the release page.

Download the .hex file for your board:

Device	File
dingoPDM	`dingopdm_v7_FW_vX-X-X.hex`
dingoPDM-Max	`dingopdmmax_v1_FW_vX-X-X.hex`
CANBoard	`canboard_v2_FW_vX-X-X.hex`

Warning

Some firmware updates change the configuration format. The device will start with the default configuration after one of these updates.

Save your configuration to a file in dingoConfig before updating. After updating, open the file, Write All and Burn. See Configuration Storage.

STM32CubeProgrammer

To update the firmware, the STMicroelectronics STM32CubeProgrammer is used.

This software can be downloaded here: STM32CubeProgrammer

Entering Bootloader

To update the firmware, the device must be put into the bootloader.

This can be done using one of these methods:

Use the dingoConfig Bootloader button to jump the device to the bootloader
Remove the case and move the boot switch to the bootloader position

Bootloader Button

After connecting to the device in dingoConfig, open the device page and press Bootloader. This sends the Bootloader request and the device jumps to the STM32 bootloader.

The bootloader request works over USB or CAN, but the update itself must be done over USB.

Warning

Pressing the Bootloader button will turn off all outputs and drop communication with dingoConfig

Tip

Disconnect dingoConfig from the USB adapter (or close dingoConfig) before connecting with STM32CubeProgrammer.

Boot Switch

Another option is the boot switch on the PCB.

Note

The case must be removed to access the boot switch.

Remove the DT connector and any wires going to the power/ground connections
Remove the 2x Philips screws next to the DT connector
Remove the 4x M6 screws around the perimeter of the device
Slide/wiggle the case up and off the device

To enter the bootloader, move the slide switch to the position that aligns it with the lines on the switch body

BootSwitch1

Warning

After updating, remember to set the boot switch back to the original position

Danger

A POWER CYCLE IS REQUIRED any time the boot switch is changed

Connection

Connect a USB cable to the PC.

Note

V7.2 PCBs do not support USB-C to USB-C cables, a USB-C to USB-A cable must be used

Note

12V power is not required to perform the firmware update, the device will be powered by the USB cable

To verify that the device has entered the bootloader on Windows:

Open the Windows Device Manager
Expand Universal Serial Bus devices
The STM32 BOOTLOADER should be listed

On Linux, lsusb should list STMicroelectronics STM Device in DFU Mode.

Applying Update

Install STM32CubeProgrammer
Open STM32CubeProgrammer
Change connection type to USB
Press the refresh button to update the port
Press the Connect button, after successful connection the Target Information should be updated
Select the second icon on the left, Erasing & Programming
Press Browse and select the new firmware .hex file
Verify Skip flash erase before programming is unchecked
Verify Verify programming and Run after programming are checked
Press Start Programming
After successful programming, the device will disconnect
You should also receive pop-ups verifying successful programming

Success

Congrats! You successfully updated the firmware.

The firmware version is shown in dingoConfig on the device page.

Warning

If you used the boot switch, don't forget to set it back to the original position and cycle power!

CANBoard

CANBoard has no USB connection. It is programmed through the SWD pads with an ST-Link and a Tag-Connect TC2030 cable.

Connect the ST-Link and Tag-Connect cable
Open STM32CubeProgrammer and change the connection type to ST-LINK
Press Connect
Program the canboard_v2_FW_vX-X-X.hex file the same way as above