feat: HDMI-Tool 与 I2C-Inject 首版工具集

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# Python
__pycache__/
*.pyc
# PyInstaller 工作目录(打包产物 exe 已直接入库, 构建中间物不入库)
build/
dist/
*.spec
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# HDMI-Tool — HDMI 源端测试工具(LT8619C/DLPC3421 转接板调试)
> 更新:2026-09-03。单文件 Python GUI`hdmi_gui.py`),另附命令行分辨率/图案工具
> `hdmi_source.bat`。已打包版直接双击 `HDMI-Tool.exe`,无需安装 Python。
---
## 1. 功能总览
| 功能 | 说明 |
|---|---|
| EDID 查看 | 枚举各显示输出口,从注册表读取 EDID 原始数据,按 EDID 1.4/CEA-861 解算:厂商/型号/尺寸/支持模式(DTD/已建立/标准/CEA-VIC)/首选时序完整参数/校验和 |
| 分辨率切换 | 第二行"分辨率"下拉列出显卡按该屏 EDID 提供的全部模式;**应用**=临时切换(不写注册表,重启还原),**恢复**=回到本次会话切改前的模式 |
| 测试图案 | 全屏投到所选显示器,测试卡区域可选 `640x360 / 800x600 / full 铺满`;内置 纯红/纯绿/纯蓝/棋盘格/网格线 + R/G/B 三行纯色值按钮(55/AA/FF,与 dist 下 solid_*.png 对应)+ 3 个自定义图片栏位 |
| 命令行模式 | 自动化测试脚本可直接调用(见 §4) |
## 2. 快速上手(GUI
1. 双击 `HDMI-Tool.exe`(或 `python hdmi_gui.py`,需 Python ≥3.10 + pyserial 不需要,纯标准库;自定义图片 JPG/BMP 需 Pillow
2. 顶部显示器下拉选择目标屏(多屏时注意别选成主屏),"刷新"重新枚举
3. **切分辨率**:第二行选模式 → 点"应用";测完点"恢复"
4. **投测试图**
- 先在图案按钮行右侧选**测试卡区域**640x360 / 800x600 / full
- 点图案按钮即全屏投放;按 **ESC** 退出
- R/G/B 三行纯色按钮(55/AA/FF)用于位交换类测试:55 与 AA 互为字节镜像对,FF 为全高基准
- 自定义图片:点"⚙"配置名称与图片文件(图片会复制到本目录),点栏位名投放
5. 区域与自定义栏位配置自动保存在本目录 `pattern_slots.json`
## 3. 典型场景(LT8619C demo 板测试)
```
1. HDMI 接 demo 板 → 启动 HDMI-Tool → 刷新 → 选中 demo 板显示器
2. 分辨率切 800x600@60demo 板 shadow EDID 首选)→ 测试卡区域选 800x600
3. 点 R/G/B 行的纯色按钮投图 → 配合逻辑分析仪/万用表测 RGB 输出
4. 测完"恢复"分辨率
```
## 4. 命令行模式
```
python hdmi_gui.py --dump 控制台输出 EDID 解算(exe 版不支持)
python hdmi_gui.py --test-pattern Blue --area 800x600 --seconds 5
出图 5 秒自动退出
python hdmi_gui.py --test-pattern Custom1 投自定义栏位 1
--area {640x360,800x600,full} --monitor N --seconds S
```
**hdmi_source.bat**PowerShell 源端工具,功能与 GUI 互补):
```
tools\hdmi_source.bat -List 枚举显示器与支持分辨率(验证 EDID)
tools\hdmi_source.bat -Monitor 1 -Mode 800x600 切模式
tools\hdmi_source.bat -Mode 800x600 -Pattern -Restore
切模式→出图案→退出后自动恢复
```
## 5. 目录内容
| 文件 | 用途 |
|---|---|
| `HDMI-Tool.exe` | 打包好的单文件版(--noconsole`--dump` 请用源码方式跑) |
| `hdmi_gui.py` | 主程序源码 |
| `build_exe.py` | 打包脚本(`python build_exe.py`,自动装 PyInstaller`--debug` 额外出带控制台版) |
| `hdmi_source.ps1 / .bat` | 源端分辨率/图案命令行工具 |
| `gen_bw_patterns.py` / `gen_solid_colors.py` | 测试图生成脚本(bw 黑白系列 640x360 / solid 纯色系列 800x600 |
| `solid_*.png` | 9 张 800x600 纯色图(R/G/B 各 55/AA/FF,供自定义栏位或脚本使用) |
| `bw_*.png` | 5 张 640x360 黑白测试图(西门子星/频率条纹/渐变棋盘/波带/综合卡) |
| `logos/` | 图标源文件与 `make_ico.py`(改 logo 后重跑再打包) |
| `pattern_slots.json` | 自定义栏位 + 测试卡区域配置(运行后自动生成/更新) |
## 6. 注意事项
- 测试卡区域与自定义栏位配置按 exe/脚本所在目录各自保存,两份安装互不影响
- 重打包后 Windows 图标缓存可能仍显示旧图标:`ie4uinit -show` 或改名即可
- 多屏环境切分辨率前先确认显示器序号(下拉框中名称与 `-List` 输出一致)
- 修改源码后重新打包前,先结束残留的 HDMI-Tool 进程(build_exe.py 会自动处理)
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
把 hdmi_gui.py 打包成单文件 exe(工具名: HDMI-Tool)
================================
使用 PyInstaller --onefile --noconsole: Python 解释器 + 标准库 + tkinter
全部打进一个 exe, 目标机器无需安装任何依赖。
用法:
python build_exe.py 自动安装 PyInstaller(如缺)并打包
python build_exe.py --debug 额外打一个带控制台的变体(--dump 可用)
产物: tools/dist/HDMI-Tool.exe(及 --debug 时的 HDMI-Tool-console.exe)
首次运行 onefile exe 会先解压到临时目录, 启动比脚本慢一两秒, 属正常现象。
"""
import os
import subprocess
import sys
BASE = os.path.dirname(os.path.abspath(__file__))
ICO = os.path.join(BASE, 'logos', 'logo_ph_orange.ico')
def ensure_pyinstaller():
try:
import PyInstaller # noqa: F401
return
except ImportError:
pass
print('PyInstaller 未安装, 正在安装...')
subprocess.check_call([sys.executable, '-m', 'pip', 'install', 'pyinstaller'])
def remove_stale(exe_path):
"""删除旧 exe; 若被占用(上次验证的进程还在), 先结束同名进程再重试"""
if not os.path.exists(exe_path):
return
try:
os.remove(exe_path)
return
except PermissionError:
pass
import time
print(f'{exe_path} 被占用, 结束残留进程后重试...')
subprocess.run(['taskkill', '/F', '/IM', os.path.basename(exe_path)],
capture_output=True)
time.sleep(1.0)
os.remove(exe_path)
def build(name, extra_args):
dist = os.path.join(BASE, 'dist')
work = os.path.join(BASE, 'build')
remove_stale(os.path.join(dist, name + '.exe'))
cmd = [sys.executable, '-m', 'PyInstaller',
'--onefile', '--clean', '--name', name,
'--distpath', dist, '--workpath', work, '--specpath', work,
] + extra_args + [os.path.join(BASE, 'hdmi_gui.py')]
if os.path.exists(ICO):
# exe 文件图标 + 运行时窗口图标资源(从 _MEIPASS 读取)
cmd += ['--icon', ICO, '--add-data', f'{ICO};.']
else:
print('警告: 未找到 logos/logo_ph_orange.ico(先运行 logos/make_ico.py), 本次打包不带图标')
print('\n>>', ' '.join(cmd))
subprocess.check_call(cmd)
out = os.path.join(dist, name + '.exe')
print(f'完成: {out} ({os.path.getsize(out) / 1024 / 1024:.1f} MB)')
def main():
build_console = '--debug' in sys.argv
ensure_pyinstaller()
# 常规版: 双击即用, 无黑框(GUI/图案/自定义栏位全部可用, --dump 除外)
build('HDMI-Tool', ['--noconsole'])
if build_console:
# 调试版: 带控制台, --dump / 异常栈可见
build('HDMI-Tool-console', [])
if __name__ == '__main__':
main()
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
生成 640x360 黑白测试图, 供 HDMI 源端工具的自定义栏位使用
================================================================
输出到 exe 目录(tools/dist/), 并把前 3 张写入 pattern_slots.json,
启动 hdmi_gui 后自定义栏位即可直接点用; 其余两张可用 "" 换上。
图案清单(均为 640x360 黑白, 1:1 投屏无缩放):
bw_star.png 西门子星: 60 楔放射星, 看极限分辨率与中心偏移
bw_sweep.png 频率扫描条纹: 周期 24px 渐减到 3px(上竖线/下横线)
bw_checker_sweep.png 渐变棋盘: 格子尺寸 2px 递增到 32px 共 9 段
bw_zoneplate.png 同心波带片: 环距向中心递减, 看各向混叠
bw_testcard.png 综合测试卡: 灰阶/刻度/细棋盘/粗细线/标记
用法: python gen_bw_patterns.py
"""
import json
import math
import os
from PIL import Image, ImageDraw
W, H = 640, 360
BASE = os.path.dirname(os.path.abspath(__file__))
OUT = os.path.join(BASE, 'dist')
def save(img, name):
os.makedirs(OUT, exist_ok=True)
path = os.path.join(OUT, name)
img.save(path)
print(f'写出 {path}')
def gen_star():
"""西门子星: 60 个黑白交替楔形, 边缘楔宽约 17px, 向中心无限加密"""
img = Image.new('L', (W, H), 255)
d = ImageDraw.Draw(img)
cx, cy, R = W // 2, H // 2, 165
n = 60
for i in range(0, n, 2): # 黑楔在偶数位, 底为白
d.pieslice([cx - R, cy - R, cx + R, cy + R],
i * 360.0 / n, (i + 1) * 360.0 / n, fill=0)
d.ellipse([cx - R - 6, cy - R - 6, cx + R + 6, cy + R + 6],
outline=0, width=3)
d.rectangle([0, 0, W - 1, H - 1], outline=0, width=2)
save(img, 'bw_star.png')
def gen_sweep():
"""频率扫描条纹: 左到右黑白条纹周期 24px 渐减到 3px; 上半竖线, 下半横线"""
img = Image.new('L', (W, H), 255)
px = img.load()
# 上半: 竖条纹
ph = 0.0
for x in range(W):
t = x / (W - 1)
ph += 1.0 / (24 - 21 * t)
if (ph % 1.0) < 0.5:
for y in range(H // 2):
px[x, y] = 0
# 下半: 横条纹
ph = 0.0
for y in range(H // 2, H):
t = (y - H // 2) / (H // 2 - 1)
ph += 1.0 / (24 - 21 * t)
if (ph % 1.0) < 0.5:
for x in range(W):
px[x, y] = 0
d = ImageDraw.Draw(img)
d.line([0, H // 2, W, H // 2], fill=0, width=2)
d.rectangle([0, 0, W - 1, H - 1], outline=0, width=2)
d.text((8, 6), 'H sweep 24px->3px', fill=0)
d.text((8, H // 2 + 6), 'V sweep 24px->3px', fill=0)
save(img, 'bw_sweep.png')
def gen_checker_sweep():
"""渐变棋盘: 格子尺寸从 2px 逐段加倍到 32px, 看多大格子开始可分辨"""
img = Image.new('L', (W, H), 0)
d = ImageDraw.Draw(img)
sizes = [2, 3, 4, 6, 8, 12, 16, 24, 32]
seg = W / len(sizes)
for i, s in enumerate(sizes):
x0, x1 = int(round(i * seg)), int(round((i + 1) * seg))
for yy in range(0, H, s):
for xx in range(x0, x1, s):
if ((xx // s) + (yy // s)) % 2 == 0:
d.rectangle([xx, yy, min(xx + s, x1) - 1, min(yy + s, H) - 1],
fill=255)
d.line([x1, 0, x1, H], fill=255, width=2)
d.text((4, 4), 'checker 2..32px', fill=255)
save(img, 'bw_checker_sweep.png')
def gen_zoneplate():
"""同心波带片: 环距中心处约 31px、边缘约 3.5px, 观察各方向混叠"""
img = Image.new('L', (W, H), 255)
px = img.load()
cx, cy, k = W / 2, H / 2, 0.0008
for y in range(H):
dy = y - cy
for x in range(W):
dx = x - cx
if math.cos(k * (dx * dx + dy * dy)) > 0:
px[x, y] = 0
d = ImageDraw.Draw(img)
d.rectangle([0, 0, W - 1, H - 1], outline=0, width=2)
save(img, 'bw_zoneplate.png')
def gen_testcard():
"""综合测试卡: 灰阶条 + 刻度 + 细棋盘 + 粗细线 + 角标"""
img = Image.new('L', (W, H), 0)
d = ImageDraw.Draw(img)
# 外框与 40px 刻度(边缘短刻线)
d.rectangle([0, 0, W - 1, H - 1], outline=255, width=2)
for x in range(40, W, 40):
d.line([x, 0, x, 10], fill=255, width=1)
d.line([x, H, x, H - 10], fill=255, width=1)
for y in range(40, H, 40):
d.line([0, y, 10, y], fill=255, width=1)
d.line([W, y, W - 10, y], fill=255, width=1)
# 顶部 16 级灰阶条
gw = W // 16
for i in range(16):
v = round(i * 255 / 15)
d.rectangle([i * gw, 20, (i + 1) * gw - 1, 44], fill=v, outline=255)
# 左下: 1px 棋盘块 (640/4=160 宽 x 72 高)
bx, by, bs = 16, H - 96, 2
for yy in range(by, by + 72, bs):
for xx in range(bx, bx + 160, bs):
if ((xx // bs) + (yy // bs)) % 2 == 0:
d.rectangle([xx, yy, xx + bs - 1, yy + bs - 1], fill=255)
d.text((bx, by - 14), '2px checker', fill=255)
# 右下: 1/2/4px 白线组(横线), 看线条再现
lx = W - 210
for row, lw in enumerate((1, 2, 4)):
y0 = H - 100 + row * 26
for off in range(0, 13, lw * 2):
d.line([lx, y0 + off, lx + 190, y0 + off], fill=255, width=lw)
d.text((lx, H - 114), '1/2/4px lines', fill=255)
# 中心十字(1px)
cx, cy = W // 2, H // 2
d.line([cx, 60, cx, H - 60], fill=255, width=1)
d.line([W // 4, cy, W - W // 4, cy], fill=255, width=1)
# 四角 L 标记
m, L = 16, 28
for sx, sy in ((m, m), (W - 1 - m, m), (m, H - 1 - m), (W - 1 - m, H - 1 - m)):
dx = -1 if sx > cx else 1
dy = -1 if sy > cy else 1
d.line([sx, sy, sx + dx * L, sy], fill=255, width=2)
d.line([sx, sy, sx, sy + dy * L], fill=255, width=2)
d.text((W // 2 - 60, 52), '640x360 TEST', fill=255)
save(img, 'bw_testcard.png')
def write_slots():
slots = [
{'name': '西门子星', 'file': 'bw_star.png'},
{'name': '频率条纹', 'file': 'bw_sweep.png'},
{'name': '渐变棋盘', 'file': 'bw_checker_sweep.png'},
]
path = os.path.join(OUT, 'pattern_slots.json')
with open(path, 'w', encoding='utf-8') as f:
json.dump(slots, f, ensure_ascii=False, indent=2)
print(f'写出 {path}(前 3 张已配入自定义栏位, 其余两张可用 "" 换上)')
if __name__ == '__main__':
gen_star()
gen_sweep()
gen_checker_sweep()
gen_zoneplate()
gen_testcard()
write_slots()
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
生成 800x600 纯色测试图, 供 RGB 位交换(0x606E)验证使用
================================================================
配合 demo 板当前 EDID 首选时序 800x600@60, 全屏纯色输出。
用法: python gen_solid_colors.py → 输出到 tools/dist/solid_*.png
在 HDMI-Tool 中通过自定义栏位(⚙ 换图)加载。
"""
import os
from PIL import Image
W, H = 800, 600 # 与 demo 板 EDID 首选时序一致, 全屏铺满
BASE = os.path.dirname(os.path.abspath(__file__))
OUT = os.path.join(BASE, 'dist')
# (文件名后缀, RGB 值, 用途)
COLORS = [
('FF0000', (0xFF, 0x00, 0x00), '通道映射: R=D[23:16]'),
('00FF00', (0x00, 0xFF, 0x00), '通道映射: G=D[15:8]'),
('0000FF', (0x00, 0x00, 0xFF), '通道映射: B=D[7:0]'),
('AA0000', (0xAA, 0x00, 0x00), 'R 交换检测: 0xAA(10101010)'),
('550000', (0x55, 0x00, 0x00), 'R 交换检测: 0x55(01010101)'),
('00AA00', (0x00, 0xAA, 0x00), 'G 交换检测'),
('005500', (0x00, 0x55, 0x00), 'G 交换检测'),
('0000AA', (0x00, 0x00, 0xAA), 'B 交换检测'),
('000055', (0x00, 0x00, 0x55), 'B 交换检测'),
]
def main():
os.makedirs(OUT, exist_ok=True)
for suffix, rgb, note in COLORS:
img = Image.new('RGB', (W, H), rgb)
path = os.path.join(OUT, f'solid_{suffix}.png')
img.save(path)
print(f'写出 {path} # {note}')
print(f'\n{len(COLORS)} 张, 分辨率 {W}x{H}(匹配 demo 板 800x600 EDID)。')
if __name__ == '__main__':
main()
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@echo off
rem HDMI source test tool launcher (bypasses PowerShell execution policy)
rem Examples:
rem hdmi_source.bat -List
rem hdmi_source.bat -Mode 640x360
rem hdmi_source.bat -Mode 640x360 -Pattern -Restore
powershell -NoProfile -ExecutionPolicy Bypass -File "%~dp0hdmi_source.ps1" %*
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<#
.SYNOPSIS
HDMI 源端测试工具 —— 枚举/切换输出分辨率 + 全屏测试图案
.DESCRIPTION
配合 LT8619C(HDMI 转 RGB888)→ DLPC3421 转接板调试使用。
原理:电脑显卡通过 HDMI DDC 读取转接板 EDID 来枚举可用分辨率,
本脚本调用 Win32 API 完成模式枚举与切换,再用 WinForms 全屏窗口
输出测试图案。板载 EDID 只声明了 640x360@60(25.2MHz 像素时钟),
插上 HDMI 后显卡应只能发这一个模式;-List 可直接验证 EDID 是否生效。
测试图案用途:
Bars 100% 彩条 —— 肉眼/示波器验证 RGB 通道顺序与极性
GraySteps 16 级灰阶 —— 验证 RGB888 各 bit 连通性
Gradient R/G/B 三段渐变 —— 验证每通道 8bit 线性度
Checker 黑白棋盘格 —— 验证像素时钟 PCLK 与 DE 对位
Grid 网格+中心十字 —— 验证像素映射/偏移/缩放
Red/Green/Blue/White/Black/Gray50 纯色 —— 万用表/示波器测单通道电平
全屏窗口操作:空格或→下一图案,←上一图案,ESC 退出。
.EXAMPLE
tools\hdmi_source.bat -List
枚举所有活动显示器与显卡支持的分辨率(验证 EDID)
.EXAMPLE
tools\hdmi_source.bat -Monitor 1 -Mode 640x360
把显示器 1 切到 640x360(缺省 60Hz,可写 640x360@60)
.EXAMPLE
tools\hdmi_source.bat -Mode 640x360 -Pattern -Restore
切到 640x360 并全屏出图案,退出图案后恢复原分辨率
.EXAMPLE
tools\hdmi_source.bat -Pattern -PatternName Checker -Seconds 5
当前分辨率下全屏棋盘格,5 秒后自动退出(自动化测试用)
#>
param(
[switch]$List,
[int]$Monitor = 1,
[string]$Mode = '',
[switch]$Pattern,
[ValidateSet('', 'Bars', 'GraySteps', 'Gradient', 'Checker', 'Grid',
'Red', 'Green', 'Blue', 'White', 'Black', 'Gray50')]
[string]$PatternName = '',
[int]$Seconds = 0,
[switch]$Restore
)
$ErrorActionPreference = 'Stop'
# ---------------- Win32 显示 API ----------------
Add-Type -TypeDefinition @"
using System;
using System.Runtime.InteropServices;
namespace HdmiSrc
{
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
public struct DISPLAY_DEVICE
{
public int cb;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)] public string DeviceName;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 128)] public string DeviceString;
public int StateFlags;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 128)] public string DeviceID;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 128)] public string DeviceKey;
}
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
public struct DEVMODE
{
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)] public string dmDeviceName;
public short dmSpecVersion;
public short dmDriverVersion;
public short dmSize;
public short dmDriverExtra;
public int dmFields;
public int dmPositionX;
public int dmPositionY;
public int dmDisplayOrientation;
public int dmDisplayFixedOutput;
public short dmColor;
public short dmDuplex;
public short dmYResolution;
public short dmTTOption;
public short dmCollate;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)] public string dmFormName;
public short dmLogPixels;
public int dmBitsPerPel;
public int dmPelsWidth;
public int dmPelsHeight;
public int dmDisplayFlags;
public int dmDisplayFrequency;
public int dmICMMethod;
public int dmICMIntent;
public int dmMediaType;
public int dmDitherType;
public int dmReserved1;
public int dmReserved2;
public int dmPanningWidth;
public int dmPanningHeight;
}
public static class Native
{
[DllImport("user32.dll", CharSet = CharSet.Ansi)]
public static extern bool EnumDisplayDevices(string lpDevice, uint iDevNum,
ref DISPLAY_DEVICE lpDisplayDevice, uint dwFlags);
// PowerShell $null marshal NULL, C# NULL
public static bool EnumDisplayAdapters(uint iDevNum, ref DISPLAY_DEVICE lpDisplayDevice)
{
return EnumDisplayDevices(null, iDevNum, ref lpDisplayDevice, 0);
}
[DllImport("user32.dll", CharSet = CharSet.Ansi)]
public static extern bool EnumDisplaySettings(string lpszDeviceName, int iModeNum,
ref DEVMODE lpDevMode);
[DllImport("user32.dll", CharSet = CharSet.Ansi)]
public static extern int ChangeDisplaySettingsEx(string lpszDeviceName,
ref DEVMODE lpDevMode, IntPtr hwnd, int dwflags, IntPtr lParam);
}
}
"@
# 板载 EDID 声明的目标模式,-List 时用于自检
$TargetW = 640
$TargetH = 360
function New-DevMode {
$dm = New-Object HdmiSrc.DEVMODE
$dm.dmDeviceName = ''
$dm.dmFormName = ''
$dm.dmSize = [System.Runtime.InteropServices.Marshal]::SizeOf($dm)
return $dm
}
function New-DisplayDevice {
$dd = New-Object HdmiSrc.DISPLAY_DEVICE
$dd.DeviceName = ''
$dd.DeviceString = ''
$dd.DeviceID = ''
$dd.DeviceKey = ''
$dd.cb = [System.Runtime.InteropServices.Marshal]::SizeOf($dd)
return $dd
}
# 枚举所有"已连接到桌面"的显示器(即插着 HDMI 的输出口)
function Get-Displays {
$list = @()
$i = 0
while ($true) {
$dd = New-DisplayDevice
if (-not [HdmiSrc.Native]::EnumDisplayAdapters($i, [ref]$dd)) { break }
# StateFlags bit0 = ATTACHED_TO_DESKTOP
if ($dd.StateFlags -band 0x1) {
$mon = New-DisplayDevice
[void][HdmiSrc.Native]::EnumDisplayDevices($dd.DeviceName, 0, [ref]$mon, 0)
$list += [pscustomobject]@{
Index = $list.Count + 1
Device = $dd.DeviceName
Adapter = $dd.DeviceString
MonName = $mon.DeviceString
}
}
$i++
}
return $list
}
# 显卡枚举到的全部显示模式(去重)
function Get-Modes {
param([string]$Device)
$modes = @()
$i = 0
while ($true) {
$dm = New-DevMode
if (-not [HdmiSrc.Native]::EnumDisplaySettings($Device, $i, [ref]$dm)) { break }
$modes += [pscustomobject]@{
W = $dm.dmPelsWidth
H = $dm.dmPelsHeight
Hz = $dm.dmDisplayFrequency
Bpp = $dm.dmBitsPerPel
}
$i++
}
return ($modes | Sort-Object W, H, Hz, Bpp -Unique)
}
function Get-CurrentDevMode {
param([string]$Device)
$dm = New-DevMode
[void][HdmiSrc.Native]::EnumDisplaySettings($Device, -1, [ref]$dm) # ENUM_CURRENT_SETTINGS
return $dm
}
# 应用一个 DEVMODE(先 CDS_TEST 再真正生效),返回 $true/$false
function Set-DevMode {
param([string]$Device, $dm)
$dm.dmFields = 0x00040000 -bor 0x00080000 -bor 0x00100000 -bor 0x00400000
# DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT | DM_DISPLAYFREQUENCY
$rc = [HdmiSrc.Native]::ChangeDisplaySettingsEx($Device, [ref]$dm, [IntPtr]::Zero, 2, [IntPtr]::Zero)
if ($rc -ne 0) {
Write-Host (" 错误: 显卡拒绝该模式 (CDS_TEST 返回 {0})" -f $rc) -ForegroundColor Red
return $false
}
$rc = [HdmiSrc.Native]::ChangeDisplaySettingsEx($Device, [ref]$dm, [IntPtr]::Zero, 0, [IntPtr]::Zero)
if ($rc -ne 0) {
Write-Host (" 错误: 模式应用失败 (返回 {0})" -f $rc) -ForegroundColor Red
return $false
}
return $true
}
# 在显卡枚举的模式里找 W x H [@Hz] 并切换
function Switch-Mode {
param([string]$Device, [int]$W, [int]$H, [int]$Hz)
$all = @(Get-Modes $Device)
$hit = @($all | Where-Object { $_.W -eq $W -and $_.H -eq $H -and ($Hz -le 0 -or $_.Hz -eq $Hz) })
if (-not $hit) {
Write-Host (" 错误: 显卡未枚举到 {0}x{1} 模式" -f $W, $H) -ForegroundColor Red
Write-Host " 可能原因:" -ForegroundColor Yellow
Write-Host " 1. 转接板 EDID 未被读取(检查 HPD / DDC / LT8619C 供电)"
Write-Host " 2. EDID 中未包含该分辨率(当前板载 EDID 只有 640x360@60)"
Write-Host " 3. 显卡驱动拒收该 DTD(可用 CRU 手动添加自定义分辨率)"
Write-Host " 先运行 -List 查看显卡实际枚举到了哪些模式。"
return $false
}
$dm = New-DevMode
$dm.dmPelsWidth = $W
$dm.dmPelsHeight = $H
$dm.dmDisplayFrequency = $hit[0].Hz
$dm.dmBitsPerPel = 32
$ok = Set-DevMode $Device $dm
if ($ok) {
Write-Host (" 已切换 {0} -> {1}x{2}@{3}" -f $Device, $W, $H, $hit[0].Hz) -ForegroundColor Green
}
return $ok
}
# ---------------- 全屏测试图案 ----------------
function Show-PatternWindow {
param(
[string]$Device = '',
[string]$StartPattern = '',
[int]$AutoSeconds = 0
)
Add-Type -AssemblyName System.Windows.Forms
Add-Type -AssemblyName System.Drawing
# 窗口放到目标设备名对应的屏幕上(如 \\.\DISPLAY2),找不到则回退主屏
$screen = [System.Windows.Forms.Screen]::AllScreens |
Where-Object { $_.DeviceName -eq $Device } |
Select-Object -First 1
if (-not $screen) { $screen = [System.Windows.Forms.Screen]::PrimaryScreen }
$script:patterns = @('Bars', 'GraySteps', 'Gradient', 'Checker', 'Grid',
'Red', 'Green', 'Blue', 'White', 'Black', 'Gray50')
$script:pi = 0
if ($StartPattern) {
$idx = [array]::IndexOf($script:patterns, $StartPattern)
if ($idx -ge 0) { $script:pi = $idx }
}
$script:form = New-Object System.Windows.Forms.Form
$script:form.FormBorderStyle = [System.Windows.Forms.FormBorderStyle]::None
$script:form.StartPosition = [System.Windows.Forms.FormStartPosition]::Manual
$script:form.Bounds = $screen.Bounds
$script:form.TopMost = $true
$script:form.KeyPreview = $true
# 双缓冲避免棋盘格/网格闪烁
$script:form.GetType().GetProperty('DoubleBuffered',
[System.Reflection.BindingFlags]'Instance,NonPublic').SetValue($script:form, $true, $null)
$osdFont = New-Object System.Drawing.Font('Consolas', 11)
$paintHandler = {
param($s, $e)
$g = $e.Graphics
$w = $e.ClipRectangle.Width
$h = $e.ClipRectangle.Height
$name = $script:patterns[$script:pi]
switch ($name) {
'Bars' {
# 100% 饱和度竖彩条:白黄青绿品红红蓝黑
$c = @(@(255,255,255), @(255,255,0), @(0,255,255), @(0,255,0),
@(255,0,255), @(255,0,0), @(0,0,255), @(0,0,0))
$n = $c.Count
for ($k = 0; $k -lt $n; $k++) {
$bw = [Math]::Ceiling($w / $n)
$brush = New-Object System.Drawing.SolidBrush (
[System.Drawing.Color]::FromArgb($c[$k][0], $c[$k][1], $c[$k][2]))
$g.FillRectangle($brush, [int]($k * $bw), 0, [int]$bw + 1, $h)
$brush.Dispose()
}
}
'GraySteps' {
# 16 级灰阶,验证 RGB888 各 bit
$n = 16
for ($k = 0; $k -lt $n; $k++) {
$v = [int]($k * 255 / ($n - 1))
$bw = [Math]::Ceiling($w / $n)
$brush = New-Object System.Drawing.SolidBrush (
[System.Drawing.Color]::FromArgb($v, $v, $v))
$g.FillRectangle($brush, [int]($k * $bw), 0, [int]$bw + 1, $h)
$brush.Dispose()
}
}
'Gradient' {
# R/G/B 三段水平渐变,验证每通道 8bit 线性度
$seg = [Math]::Ceiling($w / 3.0)
$rgbIdx = @(0, 1, 2)
foreach ($ch in $rgbIdx) {
for ($x = 0; $x -lt $seg; $x++) {
$v = [int](255 * $x / [Math]::Max(1.0, ($seg - 1)))
$r = 0; $gg = 0; $b = 0
if ($ch -eq 0) { $r = $v } elseif ($ch -eq 1) { $gg = $v } else { $b = $v }
$brush = New-Object System.Drawing.SolidBrush (
[System.Drawing.Color]::FromArgb($r, $gg, $b))
$g.FillRectangle($brush, [int]($ch * $seg + $x), 0, 1, $h)
$brush.Dispose()
}
}
}
'Checker' {
# 黑白棋盘格,验证 PCLK/DE 对位
$g.FillRectangle([System.Drawing.Brushes]::Black, 0, 0, $w, $h)
$cell = 16
for ($y = 0; $y -lt $h; $y += $cell) {
for ($x = 0; $x -lt $w; $x += $cell) {
if ((([int]($x / $cell) + [int]($y / $cell)) % 2) -eq 0) {
$g.FillRectangle([System.Drawing.Brushes]::White, $x, $y, $cell, $cell)
}
}
}
}
'Grid' {
# 黑底 + 40px 网格 + 中心十字 + 白色边框,验证像素映射
$g.FillRectangle([System.Drawing.Brushes]::Black, 0, 0, $w, $h)
$pen = New-Object System.Drawing.Pen ([System.Drawing.Color]::FromArgb(0, 128, 0), 1)
for ($x = 40; $x -lt $w; $x += 40) { $g.DrawLine($pen, $x, 0, $x, $h) }
for ($y = 40; $y -lt $h; $y += 40) { $g.DrawLine($pen, 0, $y, $w, $y) }
$pen.Dispose()
$wp = New-Object System.Drawing.Pen ([System.Drawing.Color]::White, 2)
$cx = [int]($w / 2); $cy = [int]($h / 2)
$g.DrawLine($wp, $cx, 0, $cx, $h)
$g.DrawLine($wp, 0, $cy, $w, $cy)
$g.DrawRectangle($wp, 1, 1, $w - 3, $h - 3)
$wp.Dispose()
}
'Red' { $g.FillRectangle([System.Drawing.Brushes]::Red, 0, 0, $w, $h) }
'Green' { $g.FillRectangle([System.Drawing.Brushes]::Green, 0, 0, $w, $h) }
'Blue' { $g.FillRectangle([System.Drawing.Brushes]::Blue, 0, 0, $w, $h) }
'White' { $g.FillRectangle([System.Drawing.Brushes]::White, 0, 0, $w, $h) }
'Black' { $g.FillRectangle([System.Drawing.Brushes]::Black, 0, 0, $w, $h) }
'Gray50' {
$brush = New-Object System.Drawing.SolidBrush (
[System.Drawing.Color]::FromArgb(128, 128, 128))
$g.FillRectangle($brush, 0, 0, $w, $h)
$brush.Dispose()
}
}
# 左上角 OSD:图案名 + 分辨率 + 按键提示
$text = "[{0}] {1}x{2} 空格/→:下一图案 ←:上一图案 ESC:退出" -f $name, $w, $h
$sz = $g.MeasureString($text, $osdFont)
$bg = New-Object System.Drawing.SolidBrush ([System.Drawing.Color]::FromArgb(150, 0, 0, 0))
$g.FillRectangle($bg, 6, 6, $sz.Width + 12, $sz.Height + 8)
$bg.Dispose()
$g.DrawString($text, $osdFont, [System.Drawing.Brushes]::White, 12, 10)
}
$script:form.Add_Paint($paintHandler)
$script:form.Add_KeyDown({
param($s, $e)
switch ($e.KeyCode) {
'Escape' { $s.Close() }
'Space' { $script:pi = ($script:pi + 1) % $script:patterns.Count; $s.Invalidate() }
'Right' { $script:pi = ($script:pi + 1) % $script:patterns.Count; $s.Invalidate() }
'Left' { $script:pi = ($script:pi - 1 + $script:patterns.Count) % $script:patterns.Count; $s.Invalidate() }
}
})
$script:form.Add_Activated({ [System.Windows.Forms.Cursor]::Hide() })
$script:form.Add_FormClosed({ [System.Windows.Forms.Cursor]::Show() })
if ($AutoSeconds -gt 0) {
$timer = New-Object System.Windows.Forms.Timer
$timer.Interval = $AutoSeconds * 1000
$timer.Add_Tick({ $script:form.Close() })
$timer.Start()
}
Write-Host ("全屏图案已启动于 {0} ({1}x{2})" -f $screen.DeviceName, $screen.Bounds.Width, $screen.Bounds.Height)
Write-Host "空格/→:下一图案 ←:上一图案 ESC:退出"
[void]$script:form.ShowDialog()
}
function Show-Usage {
Write-Host @"
:
hdmi_source.bat -List ( EDID)
hdmi_source.bat -Monitor <n> -Mode <WxH[@Hz]> , -Mode 640x360 640x360@60
hdmi_source.bat [-Monitor <n>] -Pattern [-PatternName <>] [-Seconds <n>]
(Bar/GraySteps/Gradient/Checker/Grid/)
: -Restore 退
-Seconds <n> n 退()
:
1. HDMI -> -List 640x360(EDID )
2. -Mode 640x360 -Pattern -> , RGB //
"@
}
# ---------------- 主流程 ----------------
$displays = @(Get-Displays) # @() 保证单显示器时不退化为标量
if ($displays.Count -eq 0) {
Write-Host "错误: 未找到活动显示器" -ForegroundColor Red
exit 1
}
if ($List) {
foreach ($d in $displays) {
Write-Host ""
Write-Host ("== 显示器 {0} {1} 显卡[{2}] 监视器[{3}]" -f $d.Index, $d.Device, $d.Adapter, $d.MonName) -ForegroundColor Cyan
$cur = Get-CurrentDevMode $d.Device
Write-Host (" 当前模式: {0}x{1}@{2} {3}bpp" -f $cur.dmPelsWidth, $cur.dmPelsHeight, $cur.dmDisplayFrequency, $cur.dmBitsPerPel)
$modes = Get-Modes $d.Device
$modes | Format-Table W, H, Hz, Bpp -AutoSize
$hasTarget = $modes | Where-Object { $_.W -eq $TargetW -and $_.H -eq $TargetH }
if ($hasTarget) {
Write-Host (" [OK] 找到板载 EDID 目标模式 {0}x{1} -> EDID 已被显卡读取" -f $TargetW, $TargetH) -ForegroundColor Green
} else {
Write-Host (" [--] 未找到 {0}x{1} (若此口接的是转接板, 说明 EDID/HPD 未生效)" -f $TargetW, $TargetH) -ForegroundColor Yellow
}
}
exit 0
}
if (-not $Mode -and -not $Pattern) {
Show-Usage
exit 0
}
if ($Monitor -gt $displays.Count) {
Write-Host ("错误: -Monitor 超出范围(共 {0} 个活动显示器, 运行 -List 查看)" -f $displays.Count) -ForegroundColor Red
exit 1
}
$disp = $displays[$Monitor - 1]
Write-Host ("目标: 显示器 {0} = {1}" -f $disp.Index, $disp.Device)
$prevMode = $null
if ($Mode) {
if ($Mode -notmatch '^\s*(\d+)\s*[xX]\s*(\d+)\s*(?:@\s*(\d+)\s*)?$') {
Write-Host "错误: -Mode 格式应为 WxH 或 WxH@Hz, 例如 640x360 或 640x360@60" -ForegroundColor Red
exit 1
}
$w = [int]$Matches[1]; $h = [int]$Matches[2]
$hz = 0
if ($Matches[3]) { $hz = [int]$Matches[3] }
$prevMode = Get-CurrentDevMode $disp.Device
$ok = Switch-Mode $disp.Device $w $h $hz
if (-not $ok) { exit 1 }
Start-Sleep -Milliseconds 300 # 等显卡/显示器完成模式切换
}
if ($Pattern) {
if ($Restore -and -not $prevMode) {
Write-Host "提示: -Restore 仅在与 -Mode 同用时生效" -ForegroundColor Yellow
}
try {
Show-PatternWindow -Device $disp.Device -StartPattern $PatternName -AutoSeconds $Seconds
}
finally {
if ($Restore -and $prevMode) {
Write-Host ("恢复原分辨率 {0}x{1}@{2} ..." -f $prevMode.dmPelsWidth, $prevMode.dmPelsHeight, $prevMode.dmDisplayFrequency)
[void](Set-DevMode $disp.Device $prevMode)
}
}
}
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512">
<rect width="512" height="512" fill="#000000"/>
<rect x="38" y="64" width="436" height="186" rx="34" fill="#FF9900"/>
<text x="256" y="210" font-family="Arial, 'Microsoft YaHei', sans-serif" font-size="146" font-weight="900" fill="#000000" text-anchor="middle">HDMI</text>
<text x="256" y="421" font-family="Arial, 'Microsoft YaHei', sans-serif" font-size="146" font-weight="900" fill="#FFFFFF" text-anchor="middle">Tool</text>
</svg>

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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
把 logo_ph_orange.svg 同款设计栅格化为多尺寸 .ico(供 exe 图标)
================================================================
设计参数与 SVG 严格一致: 黑底 512, 橙色圆角矩形 x38 y64 w436 h186 rx34,
HDMI 146px Arial Bold 黑字(框内居中), Tool 146px 白字(基线 421)。
输出: logos/logo_ph_orange.png(512, 预览/复用)
logos/logo_ph_orange.ico(16~256 七档, exe 图标用)
用法: python make_ico.py
"""
import os
from PIL import Image, ImageDraw, ImageFont
BASE = os.path.dirname(os.path.abspath(__file__))
FONT = r'C:\Windows\Fonts\arialbd.ttf' # Arial Bold, Windows 标配
def render(size=512):
s = size / 512.0
img = Image.new('RGB', (size, size), (0, 0, 0))
d = ImageDraw.Draw(img)
d.rounded_rectangle([38 * s, 64 * s, (38 + 436) * s, (64 + 186) * s],
radius=34 * s, fill=(255, 153, 0))
if not os.path.exists(FONT):
raise SystemExit(f'未找到字体 {FONT}, 无法栅格化')
f = ImageFont.truetype(FONT, max(8, round(146 * s)))
cx = size / 2
# HDMI: 居中于橙色框
d.text((cx, 64 * s + 186 * s / 2), 'HDMI', font=f, fill=(0, 0, 0), anchor='mm')
# Tool: 与 SVG 基线 421 对齐(无下伸字母, 中心 = 421 - cap/2 ~= 368)
d.text((cx, 368 * s), 'Tool', font=f, fill=(255, 255, 255), anchor='mm')
return img
if __name__ == '__main__':
img = render(512)
png = os.path.join(BASE, 'logo_ph_orange.png')
ico = os.path.join(BASE, 'logo_ph_orange.ico')
img.save(png)
img.save(ico, sizes=[(16, 16), (24, 24), (32, 32), (48, 48),
(64, 64), (128, 128), (256, 256)])
print(f'写出 {png}')
print(f'写出 {ico}')
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{
"area": "800x600",
"slots": [
{
"name": "西门子星",
"file": "bw_star.png"
},
{
"name": "频率条纹",
"file": "bw_sweep.png"
},
{
"name": "渐变棋盘",
"file": "bw_checker_sweep.png"
}
]
}
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# I2C-Inject — LT8619C 寄存器择机注入工具
> 更新:2026-09-03。由两部分组成:**RP2040 注入器固件**`rp2040_inject.py`,刷入
> BPI-Pico-RP2040MicroPython+ **PC 端 GUI**`i2c_inject_gui.py` / 打包版
> `I2C-Inject.exe`)。可在 LT8619C demo 板的 I2C 总线上安全地在线读写寄存器。
---
## 1. 工作原理(为什么不会和 demo 板冲突)
demo 板 MCU 每 ~500ms 轮询一次 LT8619C。注入器的时序:
```
监听总线边沿 -> 等下一轮活动结束 -> 总线静置 50ms -> 发射
(切 bank -> 写 -> 读回校验), 失败自动重试 3 次 -> 立即释放总线回监听
```
静置窗口落在两次轮询之间的 ~490ms 空窗内,单次注入序列 <2ms,冲突概率趋近零;
即使撞上也表现为读回不符,自动重试覆盖。板载 LED:**常亮 = 监听中**,上电快闪 3 次 = 自检。
## 2. 硬件准备
| RP2040 板 | 接 LT8619C 总线 |
|---|---|
| GP8(物理脚 11 | SDA |
| GP9(物理脚 12 | SCL |
| GND | GND |
- **不接 VCC、不外加干扰**:总线由 demo 板自带上拉(先确认上拉为 3.3V)
- 固件刷写:板子插 USB → 已有 MicroPython 则直接
`py -m pip install mpremote && py -m mpremote connect COMx cp rp2040_inject.py :main.py`
→ 复位后自启动(刷新 MicroPython UF2 会清掉 main.py,重传一次即可)
- 固件内置 viper 编译的总线嗅探(`c [ms]` 命令,~3MHz 采样),串口回吐边沿数据可离线解码 I2C
## 3. GUI 使用
双击 `I2C-Inject.exe`(或 `python i2c_inject_gui.py [COMx]`):
1. **第一排左侧**:串口下拉 →"刷新"扫描 → 选中注入器端口 →"连接"(日志出现"已连接"
2. **第一排右侧**:输入 Bank/寄存器/值(十六进制)→ **写入**(自动读回校验)/**读取**
3. **0x606E 快捷块**(位交换,语义为 demo 板 LA 实测):
- `00`=关交换;`20`=镜像 D[7:0](载蓝色分量的组,实测立即生效)
- `40`/`80`=另外两组(demo 板未单独实测,自板点亮时验证)
4. **0x606D 快捷块**(RGB 整组顺序,蓝+红双色实测=手册 naive 读法):
- `00 BGR / 03 BRG / 04 GBR / 05 GRB / 06 RBG / 07 RGB`
- 字母串顺序 = D[23:16]/D[15:8]/D[7:0] 携带的分量;切换实时生效,不影响 HDMI 锁定
5. 回显格式:`=` 正常结果(绿色,含"读回=xx"校验值)、`!` 告警/失败(橙色)
6. 收尾:把改过的寄存器写回原值(0x606E 原值 000x606D 原值 07
## 4. 已实测的寄存器事实速查(demo 板)
| 寄存器 | 实测结论 |
|---|---|
| 0x606E | bit5(0x20)=镜像 D[7:0](蓝值组),立即生效、含消隐码;bit7(0x80) 对该组无效;稳态下写入可持续(实测 6.7s+),板子非稳态时 0.3~0.5s 内被刷回 00 → **先投图等稳态再写,写完立即读回确认** |
| 0x606D | 000/001/010=BGR、011=BRG、100=GBR、101=GRB、110=RBG、111=RGB(字母串=D[23:16]/D[15:8]/D[7:0]),切换实时生效;demo 板 init 值 07 |
## 5. 目录内容
| 文件 | 用途 |
|---|---|
| `I2C-Inject.exe` | 打包好的单文件 PC 端 GUI(需 pyserial,已打包在内) |
| `i2c_inject_gui.py` | PC 端 GUI 源码(`python build_exe.py` 重新打包) |
| `rp2040_inject.py` | RP2040 注入器固件(MicroPython,刷成 main.py 自启动) |
| `logos/` | 图标源文件与 `make_ico_i2c.py`(改 logo 后重跑再打包) |
## 6. 故障排查
- 写入回显 `OK 读回=xx` 但稍后读回变了 → demo 板把它刷回了(见 §4 稳态提醒),先确认 HDMI 已稳定出图
- 读寄存器 NAK/失败 → 检查三根接线与共地;用 `s` 命令看边沿计数是否在增长(增长=监听正常,总线有活动)
- 串口列表空白 → 换 USB 口/检查设备管理器(应出现 `USB 串行设备`VID_2E8A
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
把 i2c_inject_gui.py 打包成单文件 exe(工具名: I2C-Inject)
================================
使用 PyInstaller --onefile --noconsole, 目标机器无需安装 Python/pyserial。
用法:
python build_exe.py 自动安装 PyInstaller(如缺)并打包
产物: 本目录 dist/I2C-Inject.exe
"""
import os
import subprocess
import sys
BASE = os.path.dirname(os.path.abspath(__file__))
ICO = os.path.join(BASE, 'logos', 'logo_i2c_orange.ico')
def ensure_pyinstaller():
try:
import PyInstaller # noqa: F401
return
except ImportError:
pass
print('PyInstaller 未安装, 正在安装...')
subprocess.check_call([sys.executable, '-m', 'pip', 'install', 'pyinstaller'])
def main():
ensure_pyinstaller()
exe = os.path.join(BASE, 'dist', 'I2C-Inject.exe')
if os.path.exists(exe):
try:
os.remove(exe)
except PermissionError:
subprocess.run(['taskkill', '/F', '/IM', 'I2C-Inject.exe'],
capture_output=True)
import time
time.sleep(1.0)
os.remove(exe)
cmd = [sys.executable, '-m', 'PyInstaller',
'--onefile', '--clean', '--name', 'I2C-Inject',
'--distpath', os.path.join(BASE, 'dist'),
'--workpath', os.path.join(BASE, 'build'),
'--specpath', os.path.join(BASE, 'build'),
'--noconsole', os.path.join(BASE, 'i2c_inject_gui.py')]
if os.path.exists(ICO):
# exe 文件图标 + 运行时窗口图标资源(从 _MEIPASS 读取)
cmd += ['--icon', ICO, '--add-data', f'{ICO};.']
else:
print('警告: 未找到 logos/logo_i2c_orange.ico(先运行 logos/make_ico_i2c.py), 本次打包不带图标')
print('>>', ' '.join(cmd))
subprocess.check_call(cmd)
print('完成: %s (%.1f MB)' % (exe, os.path.getsize(exe) / 1024 / 1024))
if __name__ == '__main__':
main()
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
I2C-Inject — LT8619C 寄存器择机注入工具
================================================
配合 RP2040 注入器固件(tools/rp2040_inject.py, 刷入 BPI-Pico-RP2040)使用,
在 LT8619C demo 板的 I2C 总线上择机读写寄存器。
特性:
- 串口选择/连接 与 寄存器操作 并列第一排, 手动输入 bank/寄存器/值 即刻注入
- 择机机制: 等总线一轮活动结束 -> 总线静置 50ms -> 发射(切bank->写->读回校验),
失败自动重试 3 次, 完成后立即释放总线回监听
- 0x606E(位交换)/0x606D(整组顺序) 快捷按钮, 全部为 demo 板 LA 实测确认的语义
依赖: pyserial(py -m pip install pyserial) + tkinter 标准库
用法: python i2c_inject_gui.py (也可带默认串口参数: python i2c_inject_gui.py COM9)
打包: python build_exe.py (生成 I2C-Inject.exe)
"""
import serial
import serial.tools.list_ports
import os
import sys
import threading
import queue
import time
import tkinter as tk
from tkinter import ttk, messagebox
if getattr(sys, 'frozen', False):
BASE_DIR = os.path.dirname(os.path.abspath(sys.executable))
else:
BASE_DIR = os.path.dirname(os.path.abspath(__file__))
def get_icon_path():
"""工具图标: 源码模式取 logos/ 下, 打包模式取 exe 内嵌资源(_MEIPASS)"""
if getattr(sys, 'frozen', False):
p = os.path.join(getattr(sys, '_MEIPASS', ''), 'logo_i2c_orange.ico')
else:
p = os.path.join(BASE_DIR, 'logos', 'logo_i2c_orange.ico')
return p if os.path.exists(p) else None
class Injector:
"""串口工作线程: 目标端口动态切换; 命令队列 -> RP2040, 回显 -> 消息队列"""
def __init__(self, on_line, on_status):
self.q = queue.Queue()
self.on_line, self.on_status = on_line, on_status
self._target = None # 想要连接的端口名(None=断开)
self.ser = None
self._lock = threading.Lock()
threading.Thread(target=self._run, daemon=True).start()
def connect(self, port):
with self._lock:
self._target = port
def disconnect(self):
with self._lock:
self._target = None
def send(self, cmd):
with self._lock:
if self.ser is None:
self.on_status('未连接串口, 命令被丢弃: ' + cmd)
return
self.q.put(cmd)
def is_connected(self):
with self._lock:
return self.ser is not None
def _run(self):
buf = b''
while True:
with self._lock:
target = self._target
if target != (self.ser.port if self.ser else None):
if self.ser is not None:
try:
self.ser.close()
except Exception:
pass
self.ser = None
self.on_status('已断开')
if target:
try:
self.ser = serial.Serial(target, timeout=0.2)
buf = b''
time.sleep(0.3) # 等 Pico 复位横幅打完
self.ser.reset_input_buffer()
self.on_status('已连接 ' + target)
except Exception as e:
self.ser = None
with self._lock:
self._target = None
self.on_status('连接 %s 失败: %s' % (target, e))
if self.ser is not None:
try:
cmd = None
try:
cmd = self.q.get_nowait()
except queue.Empty:
pass
if cmd is not None:
self.ser.write((cmd + '\n').encode())
buf += self.ser.read(256)
while b'\n' in buf:
ln, buf = buf.split(b'\n', 1)
txt = ln.decode('utf-8', 'replace').strip()
if txt:
self.on_line(txt)
except OSError:
self.ser = None
with self._lock:
self._target = None
self.on_status('串口丢失(设备拔出?), 请重新连接')
time.sleep(0.02)
def run_gui(default_port=None):
root = tk.Tk()
root.title('I2C-Inject — LT8619C 寄存器择机注入器 (静置50ms)')
root.geometry('860x520')
ic = get_icon_path()
if ic:
try:
root.iconbitmap(ic) # 窗口标题栏图标
except Exception:
pass
log_q = queue.Queue()
# ============ 第一排: 串口选择 + 寄存器操作(并列) ============
row1 = ttk.LabelFrame(root, text='连接与寄存器操作 (十六进制)', padding=(8, 4))
row1.pack(fill='x', padx=8, pady=(8, 4))
# --- 左半: 串口选择 ---
ttk.Label(row1, text='串口:').grid(row=0, column=0)
cbo_port = ttk.Combobox(row1, state='readonly', width=8, values=[])
cbo_port.grid(row=0, column=1, padx=(2, 6))
inj = Injector(on_line=lambda s: log_q.put((s, 'rx')),
on_status=lambda s: log_q.put((s, 'st')))
def refresh_ports():
ports = [p.device for p in serial.tools.list_ports.comports()]
cbo_port['values'] = ports
if ports:
cbo_port.current(0)
else:
cbo_port.set('')
inj.on_status('串口列表: %s' % (', '.join(ports) if ports else ''))
def toggle_connect():
if inj.is_connected():
inj.disconnect()
btn_conn.config(text='连接')
else:
port = cbo_port.get().strip()
if not port:
messagebox.showerror('未选择串口', '请先选择串口(或点刷新扫描)')
return
inj.connect(port)
btn_conn.config(text='断开')
ttk.Button(row1, text='刷新', width=6, command=refresh_ports).grid(row=0, column=2, padx=(0, 4))
btn_conn = ttk.Button(row1, text='连接', width=6, command=toggle_connect)
btn_conn.grid(row=0, column=3, padx=(0, 14))
# --- 右半: 寄存器操作 ---
ttk.Label(row1, text='Bank:').grid(row=0, column=4)
e_bank = ttk.Entry(row1, width=5); e_bank.insert(0, '60'); e_bank.grid(row=0, column=5, padx=(2, 8))
ttk.Label(row1, text='寄存器:').grid(row=0, column=6)
e_reg = ttk.Entry(row1, width=5); e_reg.insert(0, '6E'); e_reg.grid(row=0, column=7, padx=(2, 8))
ttk.Label(row1, text='值:').grid(row=0, column=8)
e_val = ttk.Entry(row1, width=5); e_val.insert(0, '00'); e_val.grid(row=0, column=9, padx=(2, 8))
def _hex_ok(s):
try:
return 0 <= int(s, 16) <= 0xFF
except ValueError:
return False
def do_write():
b, r, v = e_bank.get().strip(), e_reg.get().strip(), e_val.get().strip()
if not (_hex_ok(b) and _hex_ok(r) and _hex_ok(v)):
messagebox.showerror('输入错误', 'bank/寄存器/值 都必须是 00-FF 的十六进制')
return
inj.send('w %s %s %s' % (b, r, v))
def do_read():
b, r = e_bank.get().strip(), e_reg.get().strip()
if not (_hex_ok(b) and _hex_ok(r)):
messagebox.showerror('输入错误', 'bank/寄存器 必须是 00-FF 的十六进制')
return
inj.send('r %s %s' % (b, r))
ttk.Button(row1, text='写入', width=8, command=do_write).grid(row=0, column=10, padx=2)
ttk.Button(row1, text='读取', width=8, command=do_read).grid(row=0, column=11, padx=2)
ttk.Label(row1, text='写=择机写入后自动读回校验; 失败自动重试3次',
foreground='#666666').grid(row=1, column=0, columnspan=12,
sticky='w', pady=(4, 0))
# ============ 0x606E 快捷块(位交换) ============
qk = ttk.LabelFrame(root, text='0x606E 快捷操作 (位交换)', padding=(8, 4))
qk.pack(fill='x', padx=8, pady=4)
for i, v in enumerate(('00', '20', '40', '80')):
ttk.Button(qk, text='' + v, width=8,
command=lambda v=v: (e_val.delete(0, 'end'), e_val.insert(0, v), do_write())
).grid(row=0, column=i, padx=4)
ttk.Button(qk, text='读 0x606E', width=10,
command=do_read).grid(row=0, column=5, padx=4)
ttk.Label(qk, text='00=关交换 20=镜像D[7:0](LA实测) 40/80=另外两组(待自板单测)',
foreground='#666666').grid(row=1, column=0, columnspan=7,
sticky='w', pady=(3, 0))
# ============ 0x606D 快捷块(整组顺序) ============
qk2 = ttk.LabelFrame(root, text='0x606D 快捷操作 (RGB 整组顺序, 双色实测=手册naive读法)',
padding=(8, 4))
qk2.pack(fill='x', padx=8, pady=4)
for i, (code, name) in enumerate((('00', 'BGR'), ('03', 'BRG'), ('04', 'GBR'),
('05', 'GRB'), ('06', 'RBG'), ('07', 'RGB'))):
ttk.Button(qk2, text='%s %s' % (code, name), width=8,
command=lambda c=code: inj.send('w 60 6D ' + c)
).grid(row=0, column=i, padx=3)
ttk.Button(qk2, text='读 0x606D', width=10,
command=lambda: inj.send('r 60 6D')).grid(row=0, column=6, padx=3)
ttk.Label(qk2, text='字母串=D[23:16]/D[15:8]/D[7:0] 的分量顺序; 切换实时生效, 不影响HDMI锁定',
foreground='#666666').grid(row=1, column=0, columnspan=7,
sticky='w', pady=(3, 0))
# ============ 底部: 日志 ============
frm = ttk.LabelFrame(root, text='串口日志', padding=(6, 4))
frm.pack(fill='both', expand=True, padx=8, pady=(4, 8))
txt_log = tk.Text(frm, height=10, font=('Consolas', 9), state='disabled',
background='#101010', foreground='#C8C8C8')
txt_log.pack(side='left', fill='both', expand=True)
sb = ttk.Scrollbar(frm, orient='vertical', command=txt_log.yview)
txt_log.configure(yscrollcommand=sb.set)
sb.pack(side='right', fill='y')
for tag, color in (('rx', '#C8C8C8'), ('st', '#88AAFF'), ('ok', '#66CC66'),
('warn', '#E0A030')):
txt_log.tag_configure(tag, foreground=color)
def poll_log():
try:
while True:
ln, tag = log_q.get_nowait()
txt_log.configure(state='normal')
txt_log.insert('end', ln + '\n', tag)
if ln.startswith('='):
hot = 'warn' if ('FAIL' in ln or '丢弃' in ln) else 'ok'
txt_log.tag_add(hot, 'end-2l linestart', 'end-2l lineend')
txt_log.see('end')
txt_log.configure(state='disabled')
except queue.Empty:
pass
root.after(80, poll_log)
refresh_ports()
if default_port:
cbo_port.set(default_port)
root.after(80, poll_log)
root.protocol('WM_DELETE_WINDOW', root.destroy)
root.mainloop()
if __name__ == '__main__':
run_gui(sys.argv[1] if len(sys.argv) > 1 else None)
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512">
<rect width="512" height="512" fill="#000000"/>
<rect x="38" y="64" width="436" height="186" rx="34" fill="#FF9900"/>
<text x="256" y="210" font-family="Arial, 'Microsoft YaHei', sans-serif" font-size="146" font-weight="900" fill="#000000" text-anchor="middle">I2C</text>
<text x="256" y="421" font-family="Arial, 'Microsoft YaHei', sans-serif" font-size="146" font-weight="900" fill="#FFFFFF" text-anchor="middle">Inject</text>
</svg>

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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
把 logo_i2c_orange.svg 同款设计栅格化为多尺寸 .ico(供 I2C-Inject exe 图标)
================================================================
设计参数与 logo_ph_orange 同风格: 黑底 512, 橙色圆角矩形 x38 y64 w436 h186 rx34,
框内 "I2C" 146px Arial Bold 黑字(居中), 下方 "Inject" 白字(基线 421)。
"Inject" 比原版 "Tool" 长, 自动缩放到内容宽度 <= 85% 画布(436px)。
输出: logos/logo_i2c_orange.png(512, 预览/复用)
logos/logo_i2c_orange.ico(16~256 七档, exe 图标用)
用法: python make_ico_i2c.py
"""
import os
from PIL import Image, ImageDraw, ImageFont
BASE = os.path.dirname(os.path.abspath(__file__))
FONT = r'C:\Windows\Fonts\arialbd.ttf' # Arial Bold, Windows 标配
MAX_W = 436 # 内容宽度上限(85% 画布)
def render(size=512):
s = size / 512.0
img = Image.new('RGB', (size, size), (0, 0, 0))
d = ImageDraw.Draw(img)
d.rounded_rectangle([38 * s, 64 * s, (38 + 436) * s, (64 + 186) * s],
radius=34 * s, fill=(255, 153, 0))
if not os.path.exists(FONT):
raise SystemExit(f'未找到字体 {FONT}, 无法栅格化')
px = max(8, round(146 * s))
f = ImageFont.truetype(FONT, px)
cx = size / 2
# I2C: 居中于橙色框(146px 下宽度远小于 436, 无需缩放)
d.text((cx, 64 * s + 186 * s / 2), 'I2C', font=f, fill=(0, 0, 0), anchor='mm')
# Inject: 基线 421 对齐(中心 ~= 368), 超宽则缩字号
bottom_px = px
while bottom_px > 8:
w = d.textlength('Inject', font=ImageFont.truetype(FONT, bottom_px))
if w <= MAX_W * s:
break
bottom_px -= 2
f_bottom = ImageFont.truetype(FONT, bottom_px)
d.text((cx, 368 * s), 'Inject', font=f_bottom, fill=(255, 255, 255), anchor='mm')
return img
if __name__ == '__main__':
img = render(512)
png = os.path.join(BASE, 'logo_i2c_orange.png')
ico = os.path.join(BASE, 'logo_i2c_orange.ico')
img.save(png)
img.save(ico, sizes=[(16, 16), (24, 24), (32, 32), (48, 48),
(64, 64), (128, 128), (256, 256)])
print(f'写出 {png}')
print(f'写出 {ico}')
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# LT8619C I2C 注入器 — BPI-Pico-RP2040 / MicroPython
# ============================================================
# 用途: 在 demo 板(LT8619C, 7bit 地址 0x32)的 I2C 总线上择机注入寄存器写入,
# 避开 demo 板 MCU 的 ~500ms 轮询: 等一轮活动结束 + 静置 15ms 后快速
# "切bank→写→读回校验", 失败自动重试, 完成后立即释放总线回监听。
# 接线: GP8(物理脚11)=SDA, GP9(物理脚12)=SCL, GND 共地; 不接 VCC, 不加上拉。
# 串口: USB CDC, 命令均十六进制, 一行一回:
# w <bank> <reg> <val> 择机写 + 读回校验, 例: w 60 6E 80 (B通道镜像)
# r <bank> <reg> 择机读, 例: r 60 6E
# s 总线边沿计数统计
# ? 帮助
# 返回行以 '=' 开头为正常结果, '!' 为告警/失败。
import machine, time, sys, select, array, micropython
SDA, SCL = 8, 9
I2C_ADDR = 0x32
FREQ = 100_000
QUIET_MS = 50 # 静置判定窗口(总线空闲该时长后才注入)
ARM_TIMEOUT_MS = 1500 # 武装后等下一轮总线活动的超时(超过则硬闯并告警)
RETRY = 3
CAP_EDGES = 8000 # 嗅探最大边沿数(内存 ~40KB)
# ---- 嗅探: 紧循环读 GPIO_IN(0xD0000004) 位8/9, 变化即记录时间戳(TIMERAWL, us) ----
# val 编码: bit0=SDA(GP8), bit1=SCL(GP9)
# 性能: 字节码 machine.mem32 ~12us/读(混叠), viper 裸指针 ~0.27us/读(~3MHz 采样) —— 必须用 viper
def _cap_edges_bc(ts, vv, max_n, timeout_us):
n = 0
last = (machine.mem32[0xD0000004] >> 8) & 3
tend = machine.mem32[0x40054028] + timeout_us
while n < max_n:
v = (machine.mem32[0xD0000004] >> 8) & 3
if v != last:
ts[n] = machine.mem32[0x40054028]
vv[n] = v
n += 1
last = v
elif machine.mem32[0x40054028] >= tend:
break
return n
def _cap_edges_viper(ts, vv, max_n: int, timeout_us: int) -> int:
p_gpio = ptr32(0xD0000004)
p_timer = ptr32(0x40054028)
p_ts = ptr32(ts)
p_vv = ptr8(vv)
last = int(p_gpio[0]) >> 8 & 3
tend = int(p_timer[0]) + timeout_us
n = 0
while n < max_n:
v = int(p_gpio[0]) >> 8 & 3
if v != last:
p_ts[n] = int(p_timer[0])
p_vv[n] = v
n += 1
last = v
elif int(p_timer[0]) >= tend:
break
return n
_cap_edges = _cap_edges_bc
try:
_cap_edges_viper(array.array('i', bytes(4)), array.array('b', bytes(1)), 0, 0)
_cap_edges = _cap_edges_viper # viper 可用则用(~3MHz 采样)
except Exception:
pass # 退回字节码(仅够解码 <15kHz 的总线)
last_edge_us = time.ticks_us()
edges = 0
LED = machine.Pin(25, machine.Pin.OUT) # 板载 LED: 常亮 = 注入器监听中
def _on_edge(_pin):
global last_edge_us, edges
last_edge_us = time.ticks_us()
edges += 1
def bus_listen():
"""两脚浮空输入 + 双沿中断(只听不驱)"""
for p in (SDA, SCL):
pin = machine.Pin(p, machine.Pin.IN, None)
pin.irq(trigger=machine.Pin.IRQ_RISING | machine.Pin.IRQ_FALLING,
handler=_on_edge)
def wait_window():
"""等一轮总线活动结束再静置 QUIET_MS; 返回 True=正常等到, False=超时硬闯"""
saw = edges
t0 = time.ticks_ms()
while edges == saw: # 等下一轮活动出现(demo ~500ms 一轮)
if time.ticks_diff(time.ticks_ms(), t0) > ARM_TIMEOUT_MS:
print('! 无总线活动 %.0fms, 直接注入' % ARM_TIMEOUT_MS)
return False
time.sleep_ms(2)
t0 = time.ticks_ms()
while True: # 等静置
if time.ticks_diff(time.ticks_us(), last_edge_us) >= QUIET_MS * 1000:
return True
if time.ticks_diff(time.ticks_ms(), t0) > 2000:
print('! 静置超时, 直接注入')
return False
time.sleep_us(200)
def inject(bank, reg, val=None):
"""注入并校验; val=None 只读。返回 (ok, readback)"""
for attempt in range(1, RETRY + 1):
wait_window()
i2c = machine.I2C(0, sda=machine.Pin(SDA), scl=machine.Pin(SCL), freq=FREQ)
try:
if val is not None:
i2c.writeto(I2C_ADDR, bytes([0xFF, bank])) # 切 bank
i2c.writeto(I2C_ADDR, bytes([reg, val])) # 写寄存器
rb = i2c.readfrom_mem(I2C_ADDR, reg, 1)[0] # repeated-start 读回
except OSError as e:
print('! 第%d次总线错误 %s' % (attempt, e))
rb = None
finally:
bus_listen() # 立即释放总线
if rb is None:
continue
if val is None or rb == val:
return True, rb
print('! 第%d次校验不符: 写%02X%02X' % (attempt, val, rb))
return False, None
def main():
bus_listen()
for _ in range(3): # 上电自检: 快闪 3 次
LED.on(); time.sleep_ms(80); LED.off(); time.sleep_ms(80)
LED.on() # 常亮 = 监听中
print('LT8619C 注入器就绪 GP8=SDA GP9=SCL %dkHz addr 0x%02X' % (FREQ // 1000, I2C_ADDR))
poll = select.poll()
poll.register(sys.stdin, select.POLLIN)
buf = b''
while True:
try:
if poll.poll(50):
buf += sys.stdin.read(1)
if buf[-1:] not in (b'\n', b'\r'):
continue
line = buf.strip().decode()
buf = b''
parts = line.split()
if not parts:
continue
cmd = parts[0].lower()
if cmd == 'w' and len(parts) == 4:
bank, reg, val = (int(x, 16) for x in parts[1:])
ok, rb = inject(bank, reg, val)
print('= w %02X %02X %02X : %s 读回=%s' %
(bank, reg, val, 'OK' if ok else 'FAIL',
'%02X' % rb if rb is not None else '--'))
elif cmd == 'r' and len(parts) == 3:
bank, reg = (int(x, 16) for x in parts[1:])
ok, rb = inject(bank, reg)
print('= r %02X %02X : %s %s' %
(bank, reg, 'OK' if ok else 'FAIL',
'%02X' % rb if rb is not None else '--'))
elif cmd == 's':
print('= 边沿计数 %d' % edges)
elif cmd == 'c':
ms = int(parts[1]) if len(parts) > 1 else 700
for p in (SDA, SCL): # 捕获期间暂停监听中断
machine.Pin(p, machine.Pin.IN, None).irq(handler=None)
ts = array.array('i', bytes(4 * CAP_EDGES))
vv = array.array('b', bytes(CAP_EDGES))
n = _cap_edges(ts, vv, CAP_EDGES, ms * 1000)
bus_listen()
print('= capture %d edges / %d ms' % (n, ms))
t0 = ts[0] if n else 0
out = []
for i in range(n):
out.append('%d %d' % (ts[i] - t0, vv[i]))
if len(out) >= 100:
print('C ' + '\nC '.join(out))
out = []
if out:
print('C ' + '\nC '.join(out))
print('C.')
else:
print('? w bank reg val | r bank reg | s | c [ms]')
except KeyboardInterrupt:
break
print('退出')
main()
+33 -1
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@@ -1,3 +1,35 @@
# LT8619C_Debug_Tools
本仓库用存储LT8619C调试过程中需要的一些小工具(包括AI生成)
LT8619CHDMI→RGB888)→ DLPC3421 投影转接板调试配套上位机工具集。
上游主仓库(固件):[LT8619C_DLPC3421_HDMI](https://gitea.hulk.wang/hulk/LT8619C_DLPC3421_HDMI)。
## 工具一览
| 工具 | 用途 | 快速开始 |
|---|---|---|
| [HDMI-Tool](HDMI-Tool/) | HDMI 源端:EDID 查看/解算、分辨率切换、纯色与测试图案全屏投屏(R/G/B 纯色值按钮用于位交换类测试) | 双击 `HDMI-Tool.exe`;详见 [HDMI-Tool/README.md](HDMI-Tool/README.md) |
| [I2C-Inject](I2C-Inject/) | LT8619C 寄存器在线读写:RP2040 注入器在 demo 板 I2C 总线上择机注入(避让主控轮询,写后自动读回校验) | 需配合 RP2040 固件 `rp2040_inject.py`;详见 [I2C-Inject/README.md](I2C-Inject/README.md) |
## 环境要求
- 打包版 exe 开箱即用(Windows 10/11 x64,无需安装 Python
- 源码运行:Python ≥3.10HDMI-Tool 为纯标准库(自定义图片 JPG/BMP 需 Pillow);
I2C-Inject 需 `py -m pip install pyserial`
- 重新打包:各工具目录内 `python build_exe.py`(自动安装 PyInstaller
## 目录结构
```
LT8619C_Debug_Tools/
├── HDMI-Tool/ # 源码 + 打包 exe + 测试图资产 + 图标 + README
├── I2C-Inject/ # PC 端 GUI + RP2040 固件 + 打包 exe + 图标 + README
├── LICENSE
└── README.md
```
## 备注
- 源码与打包产物均入库:exe 改动跟随源码提交更新
- 两件工具的寄存器语义(0x606E 位交换 / 0x606D 整组顺序)均经 demo 板逻辑分析仪
双色交叉实测,过程数据与规程存于上游主仓库 `doc/architecture/`
- 更新:2026-09-03