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泉盛 K1 改装 SI4732 及固件

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Quansheng K1 SI4732 Mod & Firmware

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泉盛 K1 改装 SI4732

在泉盛 UV-K1(K1)上加装基于 SI4732-A10 的接收小板,可扩展 短波 AM、广播 FM、单边带(SSB) 等收听能力。硬件按本文 PCB 制作并焊接,主机板只需引出少量信号;刷入配套 F4HWN 系固件后即可使用。

改装涉及拆机与细线焊接,操作前请备份校准数据,风险自负。

开源固件仓库

固件源码、Docker 编译脚本与说明见 GitHub:

koocyton/quansheng-k1-f4hwn-si4732

本仓库在 armel/uv-k1-k5v3-firmware-custom(F4HWN / Fusion,面向 PY32F071 的 UV-K1 / UV-K5 V3)基础上维护,并包含 K1 外接 SI4732Si4732 编译预设。

自行编译(Docker)

环境需安装 Docker 与 Bash(Linux、macOS、WSL 或 Windows Git Bash)。

克隆仓库后执行:

./compile-with-docker.sh Si4732

脚本在 Docker 内完成配置与编译,产物位于 build/Si4732/(含 f4hwn.si4732.bin)。首次运行会拉取/构建镜像,可能需数分钟。

其它版本(FusionBandscopeBroadcast 等)及 ./compile-with-docker.sh All 见仓库 README。

改装板 PCB

下图是 K1 专用 SI4732 转接板布局(丝印 5163.xyz)。板上已集成 SI4732、20 MHz 晶振及必要外围;对外主要引出 GNDAMI(芯片 AM 天线输入)、RST(复位),顶部另有 U.FL 座可接独立天线以改善 FM。

K1 SI4732 改装板 PCB

主机 RST 接线(PA14)

SI4732 的 RST 需接到 K1 主控 PY32F071PA14(封装引脚 37)。下图红框为推荐焊点位置,焊接时务必对照实物,避免误接到相邻 pad。

K1 主机板 RST 接点 PA14

接线概要

改装板 说明 K1 侧
GND 共地 主板地
AMI SI4732 AM/中波天线输入 接原 FM 芯片(BK1080)天线通路,与 K5/K6 类 SI4732 改法相同
RST 复位,低有效 PA14(37),见上图

I2C(SCLK/SDIO 等)与音频等走线已在转接板上处理;若自行打板,请以 k1.si4732.png 为准核对网络。

嘉立创 EDA 工程(专业版导入):ProDoc_K1-AD8091_2026-06-04.epro2

建议流程:

  1. 按 PCB 图焊接 SI4732 小板(细线、防静电)。
  2. 拆 K1 外壳,将小板 GND / AMI / RST 按上表接到主机(RST 务必接 PA14)。
  3. 需要更好 FM 接收时,可为板上 U.FL 口接短线天线。
  4. 装回外壳前通电前再检查一遍焊点与短路。

固件下载与刷机

本站提供与 Si4732 预设一致的预编译固件(也可从上述 GitHub build/Si4732/ 或 Release 获取):

f4hwn.si4732.bin — 点击下载

刷机推荐使用浏览器工具 UVTools2(Chrome / Edge):

  1. 数据线连接电脑,手持台进入 DFU 刷机模式(先进入刷机模式再插线,与 K5 系列相同)。
  2. 在 UVTools2 中选择上述 f4hwn.si4732.bin
  3. 选择对应串口,执行 Flash Firmware
  4. 刷机完成后建议用 UVTools2 备份校准数据(Dump Calib),便于以后恢复。

收听操作(参考)

固件逻辑与 F4HWN 系相近,常见按键(以实际固件菜单为准):

[F+0]     进入收音机 / SI4732 模式
短按 [F]  切换 FM / AM 等模式
长按 [F]  进入或退出单边带(SSB)
SSB 下短按 [F]  可切换 USB / LSB / CW 等(视固件版本)

频率调节、步进等与其它 F4HWN K1 固件一致,可在 SysInf 等菜单中查看版本号确认刷写成功。

相关文章

Quansheng K1 SI4732 Mod

Add a small SI4732-A10 receiver board to the Quansheng UV-K1 (K1) to listen on shortwave AM, broadcast FM, and single-sideband (SSB). Build the adapter from the PCB below, wire a few signals on the main board, then flash the matching F4HWN-based Si4732 firmware.

Opening the radio and fine-pitch soldering are required. Back up calibration data first. Proceed at your own risk.

Open-source firmware repository

Firmware sources, Docker build scripts, and hardware notes live on GitHub:

koocyton/quansheng-k1-f4hwn-si4732

This repo is a fork of armel/uv-k1-k5v3-firmware-custom (F4HWN / Fusion for PY32F071 on UV-K1 and UV-K5 V3). The Si4732 CMake preset adds support for an external SI4732 board on the K1.

Build from source (Docker)

Prerequisites: Docker and Bash (Linux, macOS, WSL, or Git Bash on Windows).

Clone the repository, then run:

./compile-with-docker.sh Si4732

The script configures and builds inside Docker. Output appears under build/Si4732/ (including f4hwn.si4732.bin). The first run may take a few minutes while the Docker image is created.

Other presets (Fusion, Bandscope, Broadcast, …) and ./compile-with-docker.sh All are documented in the repository README.

Adapter PCB

Layout of the K1 SI4732 adapter (silkscreen 5163.xyz). The board includes the SI4732, a 20 MHz crystal, and passives. Main signals: GND, AMI (AM antenna input), RST (reset). A U.FL pad at the top accepts an optional antenna for better FM.

K1 SI4732 adapter PCB

Main-board RST (PA14)

Wire RST to PA14 (pin 37) on the PY32F071. The photo below marks a recommended solder point—verify against your board before soldering.

K1 main-board RST at PA14

Wiring summary

Adapter Description K1 side
GND Common ground Main-board ground
AMI SI4732 AM / MW antenna input Original BK1080 FM chip antenna path (same idea as K5/K6 SI4732 mods)
RST Reset, active low PA14 (37) — see photo

I2C and audio routing stay on the adapter. Use k1.si4732.png as the reference when ordering or assembling the PCB.

EasyEDA project (Pro import): ProDoc_K1-AD8091_2026-06-04.epro2

Suggested steps:

  1. Assemble the adapter (fine wire, ESD care).
  2. Open the K1 and connect GND, AMI, and RST (RST → PA14).
  3. Optionally add a short antenna on the U.FL port for FM.
  4. Check joints and shorts before power-on.

Firmware download & flashing

Prebuilt K1 + SI4732 image (same as the Si4732 build):

f4hwn.si4732.bin — download

Flash with UVTools2 in Chrome or Edge:

  1. Put the radio in DFU flash mode, then connect USB (same habit as K5 series).
  2. Select f4hwn.si4732.bin in UVTools2.
  3. Pick the serial port and run Flash Firmware.
  4. After flashing, dump calibration with UVTools2 (recommended).

Listening (reference)

Typical F4HWN-style keys (confirm in your firmware menu):

[F+0]           Enter radio / SI4732 mode
Short [F]       Switch FM / AM, etc.
Long [F]        Enter or exit SSB
Short [F] (SSB) Switch USB / LSB / CW (version-dependent)

Check SysInf for the firmware version after flashing.

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