This project is an effort to improve the firmware of the Radtel RT-890 in terms of features and radio performance.
It is based on DualTachyon's OEFW which is reversed from the original Radtel 1.34 firmware.
Thanks to him for making this possible!
This firmware is a work in progress and could be unstable; it could alter your radio and its data.
Use at your own risk and remember to back up your SPI memory before installing any custom firmware.
- All stock features: check user's manual
- RX frequency can be set from 10 to 1300 MHz (results may vary)
- SSB reception
- Light theme
- AM Fix (improvement in AM reception with strong signals, port of @OneOfEleven's excellent work on the Quansheng UV-K5)
- Full control over side key and main key shortcuts
- New configurable actions (FM Radio, Scanner, FLashlight)
- 0.01K step
- Displaying registers in single VFO mode
- Displaying dBM when receiving
- Reworked scanner
- Faster scanning
- Resume mode: Time, Carrier, No
- Skip flagged channels (default)
- Ignore skip flag (launch scan action while scanning)
- Change scan direction while scanning (up/down keys)
- Force scan resume (up/down keys)
- Reworked main menu
- Ability to disable LED toggling when scanning
- And much more!
Use RT-890-Flasher
UART_DEBUG => UART debug output
MOTO_STARTUP_TONE => Moto XPS startup beeps
ENABLE_AM_FIX => Experimental port of the great UV-K5 AM fix from OneOfEleven
ENABLE_LTO => Link Time Optimization
ENABLE_NOAA => NOAA weather channels (always re-set the sidekeys actions from menu after modifying the available actions)
1 => Start/stop scanning memory channels
2 => Toggle AM fix
3 => Toggle VOX
4 => Change TX power on current channel
5 => Change squelch level
6 => Toggle dual watch
7 => Toggle backlight
8 => Change frequency step
9 => Toggle scan skip for current channel
0 => Launch broadcast FM mode
* => Edit TX frequency on current channel
# => Toggle key lock
Menu => DTMF decoder
Exit => Single/dual VFO display
See Compiler, Building and Flashing sections below.
You can find pre-built firmwares in the Actions
If you want to discuss this project, you can join the Telegram group.
Original OEFW readme
- If you like my work, you can support me through https://ko-fi.com/DualTachyon
This repository is a preservation project of the Radtel RT-890 v1.34 firmware. It is dedicated to understanding how the radio works and help developers making their own customisations/fixes/etc. It is by no means fully understood or has all variables/functions properly named, as this is best effort only. As a result, this repository will not include any customisations or improvements over the original firmware.
arm-none-eabi GCC version 10.3.1 is recommended, which is the current version on Ubuntu 22.04.03 LTS. Other versions may generate a flash file that is too big. You can get an appropriate version from: https://developer.arm.com/downloads/-/gnu-rm
To build the firmware, you need to fetch the submodules and then run make:
git submodule update --init --recursive --depth=1
make
- Use the firmware.bin file with either RT-890-Flasher or RT-890-Flasher-CLI
Copyright 2023 Dual Tachyon https://github.com/DualTachyon
Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.