DBu Firmware Revision History


WD Firmware Update v14Mar2024

DBu v1.28 (SUPER)/v1.06 (FPGA, H/W v1)/v2.00 (FPGA, H/W v2)

  • Fix bug causing certain older units with hardware version DBU-1 and FPGA firmware in the version 1.x series to identity themselves incorrectly as hardware version DBU-2. In this case, updating the firmware using Wireless Designer results in installation of the wrong FPGA firmware, v2.00 instead of v1.06, the version suitable for hardware version DBU-1. When this happens, the vulnerable units fail to boot after power is cycled. Not all older units with FPGA firmware version 1.x have this vulnerability. Newer units with FPGA firmware 2.00 are NOT affected by this issue and the instructions below do not apply.
  • To update an older unit with FPGA firmware v1.x, the Wireless Designer Firmware Update wizard may need to be run twice in succession.
    • First pass: micro v1.28 will be installed. If, when done, the wizard reports that FPGA v1.06 is installed and the hardware version is DBU-1, then all is well and the unit will operate normally after power is cycled. If the wizard reports that FPGA v2.00 is installed and the hardware version is DBU-1, then the Firmware Update wizard must be run a second time to install the right FPGA firmware version.
    • Second pass: Run the Firmware Update Wizard again. It will report that the FPGA version in the file (v1.06) is older than the installed version (v2.00). To overcome this, check the "Force Update All" checkbox before starting the update. Now the correct FPGA firmware version will be installed and the unit will operate normally after power is cycled.

WD Firmware Update v06Oct2023

DBu v1.27 (SUPER)/v1.06 (FPGA, H/W v1)/v2.00 (FPGA, H/W v2)

  • Add 10 mW RF output option to the Xmit->TxPower menu.

WD Firmware Update v19Jul2023

DBu v1.26 (SUPER)/v1.06 (FPGA, H/W v1)/v2.00 (FPGA, H/W v2)

  • Eliminate faint 13 kHz tone heard in audio noise floor.

WD Firmware Update v17Nov2022

DBu v1.25 (SUPER)/v1.06 (FPGA, H/W v1)/v2.00 (FPGA, H/W v2)

  • Fixed bug making the "wake from sleep" remote control command fail. This affected only units with serial number 770 and higher.

WD Firmware Update v11Aug2022

DBu v1.22 (SUPER)/v1.06 (FPGA, H/W v1)/v2.00 (FPGA, H/W v2)

  • The menus have been reworked for greater congruence with other product with the "ProgSw", "Rolloff", "BatType", "Remote", "Locked?", "AutoOn" and "Default" items moved to a new "Setup" menu. The "Gain", "Rolloff" and "Phase" items moved to a new "Input" menu. The "Freq" and "TxPower" items moved to a new "Xmit" menu.
  • The power button menu was removed and the "AutoOn", "Backlit", "LED Off" and "About" items moved to the new "Setup" menu. The "RF On" menu item moved to the new "Xmit" menu. Now the power button is used only for turning power on or off.
  • Brought IR sync menu into compliance with new protocol. User can now select from options "SendFreq", "GetFreq", "SendAll" and "GetAll" in a new "IR&Key" menu.
  • Fixed a bug in "Default" menu where the menu button was unable to choose the "No" option.
  • Improved accuracy of battery status meter.

WD Firmware Update v05Jul2022

DBu v1.21 (SUPER)/v1.06 (FPGA, H/W v1)/v2.00 (FPGA, H/W v2)

  • Changes for ease of manufacturing at the factory. No new features or bug fixes.

WD Firmware Update v22Mar2022

DBu v1.20 (SUPER)/v1.06 (FPGA, H/W v1)/v2.00 (FPGA, H/W v2)

  • Do not allow powering off unit via menu or held-down power button when settings are locked.
  • Do not allow modification of RF power level setting when settings are locked.
  • Change IR "settings received' notification to "IR SYNC OK".
  • Implement high resolution battery voltage reporting.
  • Return to menu after wiping the encryption key.
  • Do not power up unused PLL to reduce power consumption.

WD Firmware Update v04Sep2019

DBu v1.18 (SUPER)/v1.06 (FPGA)

  • Improve audio input limiter transparency.

WD Firmware Update v12Jul2019

DBu v1.18 (SUPER)/v1.05 (FPGA)

  • Temporarily removed tuning groups feature until improved version is ready.

WD Firmware Update v22May2019

DBu v1.17 (SUPER)/v1.05 (FPGA)

  • Initial production release.