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lcd1602atest/firmware/README.md
DESKTOP-PUHFO60\dsx2016 4bd42a9c39 Fix 3.5 CYD: backlight GPIO27, LCD SCL 21 via Wire1, GT911 INT as input.
Align cyd_35r with CYD_PROJECT_GUIDE so ST7796 is not black-screened, LCD does not steal GT911 Wire, and firmware/docs match 22+21 wiring.

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-10-25 12:52:13 +08:00

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# 预编译固件
| 目录 | 板型 |
|------|------|
| [`cyd/`](cyd/) | **2.8"** ESP32-2432S028R(ILI9341),LCD SDA22/SCL27 |
| [`cyd_35r/`](cyd_35r/) | **3.5C** ESP32-3248S035C(ST7796),LCD SDA22/SCL21,BL=27 |
说明见仓库根目录 [`README.md`](../README.md)(对比度电位器、背光、Map 脚位、板型接线)。
## 刷写
```powershell
cd firmware\cyd
.\flash.ps1
# 或 3.5:
cd firmware\cyd_35r
.\flash.ps1
# 或 .\flash.ps1 -Port COM3
```
## 重新打包
```powershell
.\firmware\export_from_build.ps1
.\firmware\export_from_build.ps1 -Env cyd_35r
.\firmware\export_from_build.ps1 -SkipBuild -Env cyd_35r
```