Big Time Radio

Big Time Radio AIOR/AIOB/AIOC Firmware Page

—

by

W1BTR
in

Flashing Instructions

On Linux, you will need to install dfu-util and have the file ready.

  1. sudo apt update && sudo apt install dfu-util (or the equivilent commands for your distro)
  2. dfu-util -a 0 -s 0x08000000:leave -D firmware-file.bin

Windows Instructions

On Windows, you will need to download dfu-util and Zadig to install the libusb drivers

A. One-time driver setup (per PC)

  1. Put the device in bootloader mode: fit the BOOT0 jumper, then plug in USB. It enumerates as STM32 BOOTLOADER (0483:DF11).
  2. Run Zadig → Options ▸ List All Devices.
  3. Select STM32 BOOTLOADER in the dropdown (confirm USB ID 0483 DF11).
  4. Pick WinUSB as the target driver → Install Driver. Wait for success. B. Flash (each device)
  5. Device in bootloader mode (BOOT0 jumper + USB).
  6. Run:
    dfu-util -a 0 -s 0x08000000:leave -D firmware-file.bin
  7. (substitute the file for the variant/version you want)
  8. Remove the BOOT0 jumper and replug the USB cable. The device boots the new firmware, already configured.

Standard Audio Interface / PTT / Serial Firmware

Release version 1.4 (5/28/2026) (Beta)

AIOR (All Versions) – aio-fw-AIOR-v1.4Download
AIOB (All Versions) – aio-fw-AIOB-v1.4Download
AIOC (Hardware 1.0) – aio-fw-AIOC-v1.0-1.4Download
AIOC (Hardware 1.2+) – aio-fw-AIOC-v1.2-1.4Download

KISS TNC / Digipeater Firmware

Release version 1.0 (5/28/2026) (Alpha)

AIOR (All Versions) – tnc-fw-AIOR-v1.0Download
AIOB (All Versions) – tnc-fw-AIOB-v1.0Download
AIOC (Hardware 1.0) – tnc-fw-AIOC-v1.0-1.0Download
AIOC (Hardware 1.2+) – tnc-fw-AIOC-v1.2-1.0Download

Configuration tool coming soon. This allows updating the firmware without overwriting settings.

All firmware is provided AS-IS and is not guaranteed for life-safety or critical use scenarios. Copyright 2026 Big Time Radio.

Comments

Leave a Reply

Your email address will not be published. Required fields are marked *