Open reimplementation of the Quan Sheng UV K5 v2.1.27 firmware

This repository is a cloned and customized version of DualTachyon's open firmware found here ..

https://github.com/DualTachyon/uv-k5-firmware

Am amazing achievement if you ask me !

User customization

This version you can customize at compile time by making various changes to the makefile. You can edit those changes by (currently) editing the MakeFile, look for these lines at the top of the file ..

ENABLE_AIRCOPY                := 0       easier to just type frequency in
ENABLE_FMRADIO                := 0       FM band 2 RX
ENABLE_OVERLAY                := 1
ENABLE_UART                   := 1       without this you can't configure the radio with your PC
ENABLE_NOAA                   := 0       NOAA channels
ENABLE_VOICE                  := 0       strange voices
ENABLE_ALARM                  := 0       TX alarms
ENABLE_BIG_FREQ               := 0       big font for the frequencies
ENABLE_KEEP_MEM_NAME          := 1       maintain the channel name when (re)saving a memory channel
ENABLE_CHAN_NAME_FREQ         := 1       show the channel frequency below the channel name/number
ENABLE_WIDE_RX                := 1       enable the RX in the full 18MHz to 1300MHz (though frontend is not tuned for full range)
ENABLE_TX_WHEN_AM             := 0       allow TX when RX set to AM
ENABLE_CTCSS_TAIL_PHASE_SHIFT := 1       use CTCSS tail phase shift rather than QS's 55Hz tone method 
ENABLE_MAIN_KEY_HOLD          := 1       keys 0-9 can be held down to bypass having to press the F-key
ENABLE_BOOT_BEEPS             := 1       gives the user some audio feedback on the volume level knob position at boot-up
ENABLE_COMPANDER              := 1       compander menu option - not yet fully operational
#ENABLE_SINGLE_VFO_CHAN       := 1       not yet implemented
#ENABLE_BAND_SCOPE            := 1       not yet implemented

To enable the custom option, set the above option to '1'

Some other changes made

• Various bugs fixed that the QS firmware had
• Added new bugs
• Finer RSSI bar steps
• Nicer/cleaner big numeric font than original QS big numeric font
• Various menu re-wordings - trying to reduce 'WTH does that mean ?'
• plus others

Compiler

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

Building

To build the firmware, you need to fetch the submodules and then run make:

git submodule update --init --recursive --depth=1
make

To compile directly in windows without the need of a linux virtual machine:

1. Download and install "gcc-arm-none-eabi-10.3-2021.10-win32.exe" from https://developer.arm.com/downloads/-/gnu-rm
2. Download and install "gnu_make-3.81.exe" from https://gnuwin32.sourceforge.net/packages/make.htm
3. You may (or may not) need to reboot your PC after installing the above

Then you can run 'win_make.bat' from the directory you saved this source code too. You may need to edit the bat file (path to make.exe) depending on where you installed 'gnu_make' too.

Credits

Many thanks to various people on Telegram for putting up with me during this effort and helping:

• DualTachyon
• Mikhail
• Andrej
• Manuel
• @wagner
• @Lohtse Shar
• @Matoz
• @Davide
• @Ismo OH2FTG
• OneOfEleven
• and others I forget

License

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.