Read this in other languages: English, 中文.
- 2Mbit or 1Mbit By replacing it, you may be able to achieve:
- Display and input in any language (implemented)
- Automatic Doppler frequency shift function (implemented)
- Custom boot-up images (implemented)
- Custom SSTV images (guess)
- DOPPLER MODE (implemented)
- SI4732 FULL SSB SUPPORT
- ......
- More available flash allows for additional custom features(about 1.5K?).
- Supports online firmware compilation, no need to install a compilation environment!!
- Doppler satellite, boot image text, and SI4732 SSB patch writing method!
- Supports Creative Workshop, where you can upload custom firmware and boot images after registering and logging in!!!
Visit: K5Web
- By creating a bootloader that loads into RAM, firmware switching is achieved.
- Any firmware can be switched.
- Currently, it is only suitable for 4Mib EEPROM, but it can be easily extended to other sizes of EEPROM by modifying the code.
- Currently, the firmware is available in the following versions: LOSEHUxxx, LOSEHUxxxK, LOSEHUxxxH, LOSEHUxxxE, LOSEHUxxxEK, LOSEHUxxxHS
- LOSEHUxxx: Chinese firmware, no additional EEPROM needed, includes MDC1200, spectrum, and radio.
- LOSEHUxxxK: Chinese firmware, requires more than 1Mib EEPROM, includes Doppler mode, MDC1200, spectrum, radio, Chinese channel names, custom Chinese boot characters, and boot image.
- LOSEHUxxxH: Chinese firmware, requires more than 2Mib EEPROM, includes Doppler mode, Chinese input method, spectrum, radio, Chinese channel names, custom Chinese boot characters, and boot image.
- LOSEHUxxxHS: Chinese firmware, requires more than 2Mib EEPROM, includes SI4732 radio, Chinese input method, spectrum, Chinese channel names, custom Chinese boot characters, and boot image.
- LOSEHUxxxE: English firmware, no additional EEPROM needed, includes MDC1200, spectrum, radio, and messaging.
- LOSEHUxxxEK: English firmware, requires more than 1Mib EEPROM, includes Doppler mode, MDC1200, spectrum, radio, custom boot characters, and boot image.
This firmware is based on modifications and merges of multiple open-source firmware, featuring the most diverse functions:
- Larger EEPROM capacity
- Automatic Doppler frequency shift
- Custom boot logo
- SI4732 support
- Chinese/English support
- Chinese input method
- GB2312 Chinese interface, channels
- Spectrum graph
- MDC1200 signaling, contacts
- SMS
- Signal strength indicator (S meter)
- One-touch frequency scanning
- Radio receiver
- AM fix
- SSB demodulation
| Key | Function |
|---|---|
| 🐤 Main Interface | |
Single Press Up/Down |
Adjust frequency (step size is set by menu item Step Frequency) |
Single Press Number |
Quickly input frequency in frequency mode |
Single Press * |
Input DTMF to be sent (A, B, C, D, *, # correspond to M, Up, Down, *, F respectively. Side Key 1 acts as backspace, press PTT key to send) |
Long Press F |
Keyboard Lock |
Long Press M |
Switch modulation mode |
Long Press * |
In channel mode, activates search list, multiple long presses toggle between lists (1/2/All). In frequency mode, initiates search from current frequency |
Long Press 0/F+0 |
Open/Close radio receiver(OR SI4732) |
Long Press 1/F+1 |
In channel mode, copies current channel to another VFO |
Long Press 2/F+2 |
Switch between A/B channels |
Long Press 3/F+3 |
Switch between frequency/channel |
Long Press 4/F+4 |
One-touch frequency alignment |
Long Press 5 |
In channel mode, toggles search list |
Long Press 5 |
In frequency mode, sets search frequency range (from channel A to channel B frequency), press * key to start search |
F+5 |
Spectrum |
Long Press 6/F+6 |
Switch transmit power |
Long Press 7/F+7 |
Voice-activated transmission switch |
Long Press 8/F+8 |
One-touch reverse frequency |
Long Press 9/F+9 |
One-touch call |
F+M |
Open SMS |
F+UP |
Key tone switch |
F+Down |
Automatic Doppler shift |
F+EXIT |
Inverts menu navigation (Up/Down) |
F+* |
Scan (Digital/Analog) sub-audio |
| Short Press Side Key 1 | Monitor |
| Long Press Side Key 1 | DTMF decoding switch |
| Short Press Side Key 2 | Set wide/narrow band |
| Long Press Side Key 2 | Flashlight |
| Wide/Narrow Band, DTMF decoding, FM/AM/USB Switching | Integrated into custom Side Key and M |
| 🎤 SI4732 Radio | |
Short press Side Key 1, Short press Side Key 2 |
Change BFO in SSB mode |
Short press 5 |
Enter frequency, short press * for decimal point, short press MENU to confirm |
Short press 0 |
Switch mode (AM/FM/SSB), short press F to switch LSB/USB |
Short press 1, Short press 7 |
Change step frequency |
Short press 4 |
Toggle signal strength display |
Short press 6 |
Change bandwidth |
Short press 2, Short press 8 |
Toggle ATT |
Short press 3, Short press 9 |
Search up/down, short press EXIT to stop search |
| 🔑 Doppler Mode | |
Short press 5 |
Enter time, short press * for decimal point, short press MENU to confirm |
Short press MENU |
Toggle parameters, adjust up/down |
Short press PPT |
Transmit |
Short press Side Key 1 |
Enable listening |
|
| Eeprom Address | Description |
|---|---|
| 😭 General | Version: LOSEHUxxx |
| 0X01D00~0x02000 | Rarely changed |
| 0X01D00 ~ 0X01E00 0X1F90 ~ 0X01FF0 |
MDC1200 - 22 MDC contacts Each contact occupies 16B, with the first 2B being MDC ID and the next 14B being contact name |
| 0X01FFF | MDC1200 - Number of MDC contacts |
| 0x01FFD~0x01FFE | MDC1200 - MDC ID |
| 0x01FF8~0x01FFC | Side key functions |
| 0x01FFD~0x01FFE | MDC1200 - MDC ID |
| 😱 Expanded Version (K, H) | Version: LOSEHUxxxK, LOSEHUxxxH |
| 0x02000~0x02012 | Boot character 1 |
| 0x02012~0x02024 | Boot character 2 |
| 0x02024~0x02025 | Length of boot characters 1 and 2 |
| 0x02080~0x02480 | Boot screen, length 128 (width) * 64/8 = 1024 = 0x400 |
| 0x01FFD~0x01FFE | MDC1200 - MDC ID |
| 0x02480~0x0255C | gFontBigDigits, length 11 * 20 = 220 = 0XDC |
| 0x0255C~0x0267C | gFont3x5, length 96 * 3 = 288 = 0X120 |
| 0x0267C~0x028B0 | gFontSmall, length 96 * 6 = 564 = 0X234 |
| 0x028B0~0x02B96 | Menu encoding, length 53 * 14 = 742 = 0X2E6 |
| 0x02BA0~0x02BA9 | Doppler - Satellite names, with the first character first, up to 9 English characters, the last one being '\0' |
| 0x02BAA~0x02BAF | Doppler - Year (tens and units), month, day, hour, minute, and second of start transit time |
| 0x02BB0~0x2BB5 | Doppler - Year (tens and units), month, day, hour, minute, and second of departure time |
| 0x02BB6~0x02BB7 | Doppler - Total transit time (seconds), with the low byte first and the high byte second |
| 0x02BB8~0x02BB9 | Doppler - Transmitter sub-audio, with the low byte first and the high byte second |
| 0x02BBA~0x02BBB | Doppler - Receiver sub-audio, with the low byte first and the high byte second |
| 0x02C00~0x02C64 | Doppler - CTCSS_Options, length 50 * 2 = 100 = 0x64 |
| 0x02C64~0x02D34 | Doppler - DCS_Options, length 104 * 2 = 208 = 0xD0 |
| 0x02BBC~0X02BBF | Doppler - Difference between start transit time and UNIX timestamp of January 1, 2000, with the low byte first and the high byte second |
| 0X02BC0~0X02BC5 | Doppler - Year (tens and units), month, day, hour, minute, and second of current time |
| 0x02E00~0x1E1E6 | GB2312 Chinese font library, total 6763 * 11 * 12/8 = 111590 = 0x1B3E6 |
| 0x1E200~0x20000(MAX) | Doppler - 2*n (even) second satellite data, 8B per second, including uplink/downlink frequency/10, with the low byte first and the high byte second |
| 😰 2Mib Expanded Version (H) | Version: LOSEHUxxxH |
| 0x20000~0x26B00 | Chinese Input Method - Pinyin index, corresponding number of characters, starting address of characters |
| 0x26B00~0X2A330 | Chinese Input Method - Pinyin Chinese character table |
| 0x3C228~0x40000 | SI4732-patch，Length 0x3DD8，used to update SI4732 firmware |
| 0x3C210~0x3C21C | SI4732FM、AM、SSB Freq、Mode |
| Doppler Eeprom Layout Explanation |
You can customize the firmware by enabling/disabling various compilation options.
| Compilation Option | Description |
|---|---|
| 🧰 Quansheng Basic Functions | Quansheng Basic Functions |
| ENABLE_UART | UART, without this, you cannot configure the radio via PC! |
| ENABLE_AIRCOPY | AirCopy wireless copy |
| ENABLE_FMRADIO | FM radio function |
| ENABLE_NOAA | NOAA function (only useful in the US) |
| ENABLE_VOICE | Voice broadcast |
| ENABLE_VOX | VOX voice-controlled transmission |
| ENABLE_ALARM | TX alarm |
| ENABLE_PWRON_PASSWORD | Boot password |
| ENABLE_DTMF_CALLING | DTMF dialing function, call initiation, call reception, group call, contact list, etc. |
| ENABLE_FLASHLIGHT | Enable top flashlight LED light (on, blink, SOS) |
| ⌚ Custom Module | |
| ENABLE_BIG_FREQ | Large font frequency display (similar to official Quansheng firmware) |
| ENABLE_KEEP_MEM_NAME | Keep channel name when saving memory channel |
| ENABLE_WIDE_RX | Receive full range from 18MHz to 1300MHz (although the front end/power amplifier is not designed for the entire range) |
| ENABLE_TX_WHEN_AM | Allow TX when RX is set to AM (always FM) |
| ENABLE_F_CAL_MENU | Enable hidden frequency calibration menu for radio |
| ENABLE_CTCSS_TAIL_PHASE_SHIFT | Use standard CTCSS tail phase shift instead of the unique QS 55Hz tone method |
| ENABLE_BOOT_BEEPS | Provide audio feedback for users at startup, indicating the position of the volume knob |
| ENABLE_SHOW_CHARGE_LEVEL | Display battery charge level while radio is charging |
| ENABLE_REVERSE_BAT_SYMBOL | Mirror battery symbol in status bar (positive pole on right) |
| ENABLE_NO_CODE_SCAN_TIMEOUT | Disable 32-second CTCSS/DCS scan timeout (exit button instead of waiting for timeout to end scan) |
| ENABLE_AM_FIX | Dynamically adjust front-end gain in AM mode to help prevent AM demodulator saturation, temporarily ignore RSSI level on screen |
| ENABLE_SQUELCH_MORE_SENSITIVE | Slightly increase squelch sensitivity |
| ENABLE_FASTER_CHANNEL_SCAN | Increase channel scan speed, but also increase squelch sensitivity |
| ENABLE_RSSI_BAR | Enable RSSI bar graph level in dBm/Sn units, instead of small antenna symbol |
| ENABLE_AUDIO_BAR | Display audio bar level while transmitting |
| ENABLE_COPY_CHAN_TO_VFO | Copy current channel setting to frequency mode. Long press 1 BAND in channel mode |
| ENABLE_SPECTRUM | Spectrum analyzer, activated by F + 5 NOAA |
| ENABLE_REDUCE_LOW_MID_TX_POWER | Reduce mid and low power settings even lower |
| ENABLE_BYP_RAW_DEMODULATORS | Additional BYP (bypass?) and RAW demodulation options, proven not very useful, but available if you want to experiment |
| ENABLE_SCAN_RANGES | Scan range mode for frequency scanning |
| ENABLE_BLOCK | EEPROM lock |
| ENABLE_WARNING | Beep prompt |
| ENABLE_CUSTOM_SIDEFUNCTIONS | Custom side key function |
| ENABLE_SIDEFUNCTIONS_SEND | Custom side key function (side key transmit function) |
| ENABLE_AUDIO_BAR_DEFAULT | Default audio bar style |
| 📡 Automatic Doppler | Automatic Doppler |
| ENABLE_DOPPLER | Automatic Doppler function |
| 📧 SMS | SMS |
| ENABLE_MESSENGER | Send and receive short text messages (button = F + MENU) |
| ENABLE_MESSENGER_DELIVERY_NOTIFICATION | Send notification to sender if message received |
| ENABLE_MESSENGER_NOTIFICATION | Play sound when message received |
| 📱 MDC1200 | MDC1200 |
| ENABLE_MDC1200 | MDC1200 transmission function |
| ENABLE_MDC1200_SHOW_OP_ARG | MDC display head/tail parameter |
| ENABLE_MDC1200_SIDE_BEEP | MDC side tone |
| ENABLE_MDC1200_CONTACT | MDC contact |
| 🎛️ DOCK | DOCK |
| ENABLE_DOCK | Allow control of the radio via PC, no screen display! |
| 🚫 Debug | |
| ENABLE_AM_FIX_SHOW_DATA | Display debug data for AM fix |
| ENABLE_AGC_SHOW_DATA | Display ACG parameters |
| ENABLE_UART_RW_BK_REGS | Added two extra commands to read and write BK4819 registers |
| ENABLE_CLANG | Experimental, build with clang instead of gcc (if this option is enabled, LTO will be disabled) |
| ENABLE_SWD | Use the CPU's SWD port, required for debugging/programming |
| ENABLE_OVERLAY | CPU FLASH-related content, not needed |
| ENABLE_LTO | Reduce the size of the compiled firmware, but may break EEPROM reading (OVERLAY will be disabled after enabling) |
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Donation List Thank you very much for your support!!!
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