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Updating

dingoPDM firmware can be updated using the onboard USB-C connection.

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:

  • Remove the case and move the boot switch to the bootloader position
  • Use DingoConfigurator FwUpdate button to jump the device to the bootloader

Boot Switch

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

One option is using 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 BootSwitch1

Warning

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

FwUpdate

After connecting to the dingoPDM using dingoConfigurator, the FwUpdate button on the toolbar to send the ~BOOTL message to put the device into the bootloader.

Warning

Pressing the FwUpdate button will stop the PDM and drop communication to DingoConfigurator

Connection

Connect a USB-C to USB-A 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:

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

Applying Update

  • Install STM32CubeProgrammer
  • Open STM32CubeProgrammer
  • Change connection type to USB

  • Press the refresh button to update the port

  • CubeProgUSB

  • Press the Connect button, after successful connection the Target Information should be updated

  • CubeProgConnected
  • Select the second icon on the left, Erasing & Programming
  • CubeProgProgramming
  • 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
  • CubeProgSuccess

Success

Congrats! You successfuly updated the dingoPDM firmware.

The firmware version can be verified using DingoConfigurator

Warning

Don't forget to set the boot switch back to the original position!

Danger

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