diff --git a/README.md b/README.md index 9d27d86..8465522 100644 --- a/README.md +++ b/README.md @@ -1,18 +1,23 @@ # 触控感应按钮计数（CYD） -复用 [btntest](../btntest) 的 CYD + SoftSPI 触控 + LVGL 壳，针对 **电容触控感应模块**（如 TTP223）单独优化：抖沿确认、最短触摸、松手再武装。 +复用 [btntest](../btntest) 的 CYD + LVGL 壳，针对 **电容触控感应模块**（如 TTP223）单独优化：抖沿确认、最短触摸、松手再武装。 GPIO22 读模块 OUT：每次有效触摸，屏幕计数 +1。 +板型约定见 [`../CYD_PROJECT_GUIDE.md`](../CYD_PROJECT_GUIDE.md) §A。 + ## 硬件 -| 项目 | 说明 | -|------|------| -| 板子 | CYD ESP32-2432S028R | -| 模块 | 三脚触控感应（VCC / GND / OUT），典型 TTP223 | -| 输出 | **GPIO22** | +| 项目 | 2.8" · 2432S028R | 3.5" · 3248S035C | +|------|------------------|------------------| +| 屏 | ILI9341 240×320 | ST7796 320×480 | +| UI | 320×240 | 480×320 | +| 屏触控 | XPT2046 SoftSPI | GT911 I2C | +| 背光 | **GPIO21** | **GPIO27** | +| PlatformIO | `-e cyd` | `-e cyd_35r` | +| 感应按钮 OUT | **GPIO22**（两板相同） | **GPIO22** | -### 接线 +### 接线（两板相同） | 模块 | CYD | |------|-----| @@ -44,19 +49,28 @@ GPIO22 读模块 OUT：每次有效触摸，屏幕计数 +1。 ## 构建 / 烧录 ```bash +# 2.8" pio run -e cyd -t upload + +# 3.5" C（ST7796 + GT911，BL=27） +pio run -e cyd_35r -t upload ``` 预编译包： ```powershell +# 2.8" cd firmware\cyd .\flash.ps1 -# 或 .\flash.ps1 -Port COMx + +# 3.5" +cd firmware\cyd_35r +.\flash.ps1 ``` 导出固件： ```powershell .\firmware\export_from_build.ps1 +.\firmware\export_from_build.ps1 -Env cyd_35r ``` diff --git a/firmware/README.md b/firmware/README.md index 7e43392..af1a140 100644 --- a/firmware/README.md +++ b/firmware/README.md @@ -1,15 +1,22 @@ # 预编译固件 -目录：[`cyd/`](cyd/) +| 目录 | 板型 | +|------|------| +| [`cyd/`](cyd/) | **2.8"** ESP32-2432S028R（ILI9341 + XPT2046） | +| [`cyd_35r/`](cyd_35r/) | **3.5"** ESP32-3248S035C（ST7796 + GT911） | -板子：**CYD ESP32-2432S028R**（ILI9341） -功能：触控感应按钮（GPIO22）计数 + SoftSPI 触控 + LVGL（壳同 btntest，电容触摸专用滤波） +功能：触控感应按钮（**GPIO22**）计数 + LVGL。背光：2.8→**21**，3.5→**27**。 ## 刷写 ```powershell +# 2.8" cd firmware\cyd .\flash.ps1 + +# 3.5" +cd firmware\cyd_35r +.\flash.ps1 # 或 .\flash.ps1 -Port COM3 ``` @@ -17,5 +24,6 @@ cd firmware\cyd ```powershell .\firmware\export_from_build.ps1 -.\firmware\export_from_build.ps1 -SkipBuild +.\firmware\export_from_build.ps1 -Env cyd_35r +.\firmware\export_from_build.ps1 -SkipBuild -Env cyd_35r ``` diff --git a/firmware/cyd/VERSION.txt b/firmware/cyd/VERSION.txt index 35c563d..0aa9f00 100644 --- a/firmware/cyd/VERSION.txt +++ b/firmware/cyd/VERSION.txt @@ -1,8 +1,8 @@ name: CYD Touch Button (cyd) -git: 7f0f391 -date: 2026-10-23 +git: 53d7531 +date: 2026-10-25 board: ESP32-2432S028R (ILI9341) -features: SoftSPI touch, LVGL, capacitive touch btn on GPIO22 +features: SoftSPI touch, LVGL, capacitive touch btn GPIO22, BL=21 flash_size: 4MB offsets: 0x1000 bootloader.bin @@ -12,5 +12,5 @@ offsets: sha256: bootloader.bin 3D234A7471F67B013686DABD4DEE7C1FA915C9928463616A94BC9297ACF1ABF8 boot_app0.bin F94C5D786A7A8FAB06AC5D10E33BF37711A6697636DC037559EA19CC410A17F0 - firmware.bin 0423AA960BA1E4ADF3EFA6D40426A9047B2B9401BA27FF5E36C03F175012794F + firmware.bin A9D908D034AE51042E374ABB855D63B51E7CDB4BD89017ECD96A67B5A00D9AFA partitions.bin 148B959CBFF1C38AA8E1D5C0BA9D612C54997B945E56A63F41223EEF650653A1 diff --git a/firmware/cyd/firmware.bin b/firmware/cyd/firmware.bin index 322d4d5..dd43fec 100644 Binary files a/firmware/cyd/firmware.bin and b/firmware/cyd/firmware.bin differ diff --git a/firmware/cyd/meta.json b/firmware/cyd/meta.json index c461858..db05f37 100644 --- a/firmware/cyd/meta.json +++ b/firmware/cyd/meta.json @@ -1,17 +1,17 @@ -{ - "boardId": "esp32-2432s028", - "name": "CYD Touch Button", - "summary": "Capacitive touch module (TTP223-like) on GPIO22: each touch increments count", - "description": "Based on btntest shell. SoftSPI touch + LVGL. Capacitive debounce: majority vote, min touch 35ms, rearm after release. VCC/GND/OUT->GPIO22. Auto polarity. Touch Reset clears.", - "tags": [ - "touch-button", - "capacitive", - "ttp223", - "gpio22", - "lvgl", - "counter" - ], - "media": { - "preview": "media/preview.html" - } +{ + "boardId": "esp32-2432s028", + "name": "CYD Touch Button", + "summary": "Capacitive touch module (TTP223-like) on GPIO22: each touch increments count", + "description": "Based on btntest shell. SoftSPI touch + LVGL. Capacitive debounce: majority vote, min touch 35ms, rearm after release. VCC/GND/OUT-\u003eGPIO22. Auto polarity. Touch Reset clears.", + "tags": [ + "touch-button", + "capacitive", + "ttp223", + "gpio22", + "lvgl", + "counter" + ], + "media": { + "preview": "media/preview.html" + } } diff --git a/firmware/cyd_35r/VERSION.txt b/firmware/cyd_35r/VERSION.txt new file mode 100644 index 0000000..2fedd39 --- /dev/null +++ b/firmware/cyd_35r/VERSION.txt @@ -0,0 +1,16 @@ +name: CYD Touch Button (cyd_35r) +git: 53d7531 +date: 2026-10-25 +board: ESP32-3248S035 (ST7796) +features: SoftSPI/GT911 touch, LVGL, capacitive touch btn GPIO22, BL=27 +flash_size: 4MB +offsets: + 0x1000 bootloader.bin + 0x8000 partitions.bin + 0xe000 boot_app0.bin + 0x10000 firmware.bin +sha256: + bootloader.bin 3D234A7471F67B013686DABD4DEE7C1FA915C9928463616A94BC9297ACF1ABF8 + boot_app0.bin F94C5D786A7A8FAB06AC5D10E33BF37711A6697636DC037559EA19CC410A17F0 + firmware.bin F46A782C33654FA4597938724ACA0D13BF217D6B65508093E92015CCCD00BF2A + partitions.bin 148B959CBFF1C38AA8E1D5C0BA9D612C54997B945E56A63F41223EEF650653A1 diff --git a/firmware/cyd_35r/boot_app0.bin b/firmware/cyd_35r/boot_app0.bin new file mode 100644 index 0000000..13562ca Binary files /dev/null and b/firmware/cyd_35r/boot_app0.bin differ diff --git a/firmware/cyd_35r/bootloader.bin b/firmware/cyd_35r/bootloader.bin new file mode 100644 index 0000000..d592359 Binary files /dev/null and b/firmware/cyd_35r/bootloader.bin differ diff --git a/firmware/cyd_35r/firmware.bin b/firmware/cyd_35r/firmware.bin new file mode 100644 index 0000000..d7cde95 Binary files /dev/null and b/firmware/cyd_35r/firmware.bin differ diff --git a/firmware/cyd_35r/flash.bat b/firmware/cyd_35r/flash.bat new file mode 100644 index 0000000..bf983b3 --- /dev/null +++ b/firmware/cyd_35r/flash.bat @@ -0,0 +1,5 @@ +@echo off +setlocal +cd /d "%~dp0" +powershell -NoProfile -ExecutionPolicy Bypass -File "%~dp0flash.ps1" %* +exit /b %ERRORLEVEL% diff --git a/firmware/cyd_35r/flash.ps1 b/firmware/cyd_35r/flash.ps1 new file mode 100644 index 0000000..963580b --- /dev/null +++ b/firmware/cyd_35r/flash.ps1 @@ -0,0 +1,98 @@ +# Flash archived CYD capacitive touch-button 3.5\" firmware (no rebuild needed) +# Usage: +# .\flash.ps1 +# .\flash.ps1 -Port COM5 +# .\flash.ps1 -Port COM5 -Baud 460800 + +param( + [string]$Port = "", + [int]$Baud = 921600 +) + +$ErrorActionPreference = "Stop" +$here = Split-Path -Parent $MyInvocation.MyCommand.Path +Set-Location $here + +function Find-Esptool { + $pio = Get-Command pio -ErrorAction SilentlyContinue + if (-not $pio) { + $pioPath = Join-Path $env:USERPROFILE "AppData\Local\Programs\Python\Python312\Scripts\pio.exe" + if (Test-Path $pioPath) { + $env:Path = "$(Split-Path $pioPath);$env:Path" + $pio = Get-Command pio -ErrorAction SilentlyContinue + } + } + if ($pio) { + $pkg = Join-Path $env:USERPROFILE ".platformio\packages\tool-esptoolpy\esptool.py" + if (Test-Path $pkg) { return @{ Kind = "py"; Path = $pkg } } + } + $py = Get-Command python -ErrorAction SilentlyContinue + if ($py) { + try { + & python -c "import esptool" 2>$null + if ($LASTEXITCODE -eq 0) { return @{ Kind = "mod"; Path = "esptool" } } + } catch {} + } + $esp = Get-Command esptool.py -ErrorAction SilentlyContinue + if ($esp) { return @{ Kind = "py"; Path = $esp.Source } } + return $null +} + +if (-not $Port) { + $ports = @() + try { + Add-Type -AssemblyName System.IO.Ports -ErrorAction SilentlyContinue | Out-Null + $ports = [System.IO.Ports.SerialPort]::GetPortNames() | Sort-Object + } catch {} + if (-not $ports -or $ports.Count -eq 0) { + $ports = Get-CimInstance Win32_SerialPort -ErrorAction SilentlyContinue | + Select-Object -ExpandProperty DeviceID | Sort-Object + } + if (-not $ports -or $ports.Count -eq 0) { + Write-Error "No serial ports found. Plug in the CYD USB cable, then retry with -Port COMx" + } + if ($ports.Count -eq 1) { + $Port = $ports[0] + } else { + Write-Host "Available ports: $($ports -join ', ')" + $Port = $ports[-1] + Write-Host "Using last port: $Port (override with -Port)" + } +} + +$tool = Find-Esptool +if (-not $tool) { + Write-Error "esptool not found. Install PlatformIO (`pio`) or: pip install esptool" +} + +$needed = @("bootloader.bin", "partitions.bin", "boot_app0.bin", "firmware.bin") +foreach ($f in $needed) { + if (-not (Test-Path (Join-Path $here $f))) { + Write-Error "Missing $f ?run ..\export_from_build.ps1 from repo root first" + } +} + +$argsCommon = @( + "--chip", "esp32", + "--port", $Port, + "--baud", "$Baud", + "--before", "default_reset", + "--after", "hard_reset", + "write_flash", "-z", + "--flash_mode", "dio", + "--flash_freq", "40m", + "--flash_size", "4MB", + "0x1000", "bootloader.bin", + "0x8000", "partitions.bin", + "0xe000", "boot_app0.bin", + "0x10000", "firmware.bin" +) + +Write-Host "Flashing $here -> $Port @ $Baud" +if ($tool.Kind -eq "mod") { + & python -m esptool @argsCommon +} else { + & python $tool.Path @argsCommon +} +if ($LASTEXITCODE -ne 0) { exit $LASTEXITCODE } +Write-Host "Done. Open serial monitor at 115200 if needed." diff --git a/firmware/cyd_35r/media/preview.html b/firmware/cyd_35r/media/preview.html new file mode 100644 index 0000000..966afdc --- /dev/null +++ b/firmware/cyd_35r/media/preview.html @@ -0,0 +1,53 @@ + + + + +Touch + + + +
+ +
+ +
Touch
+
Cap OUT->GPIO22 3.3V
+
5
+
count
+
TOUCHING
+
hold 420 ms
+
+
OUT HIGH act=HIGH
+ + +
+ +
+ + diff --git a/firmware/cyd_35r/meta.json b/firmware/cyd_35r/meta.json new file mode 100644 index 0000000..36e159b --- /dev/null +++ b/firmware/cyd_35r/meta.json @@ -0,0 +1,16 @@ +{ + "boardId": "esp32-3248s035", + "name": "CYD Touch Button (3.5\")", + "summary": "Capacitive touch module (TTP223-like) on GPIO22 for 3.5\" CYD: each touch increments count", + "description": "ST7796 + GT911 + LVGL. BL=GPIO27. Capacitive debounce: majority vote, min touch 35ms, rearm after release. OUT-\u003eGPIO22 (same as 2.8). Auto polarity. Screen Reset clears.", + "tags": [ + "touch-button", + "capacitive", + "ttp223", + "gpio22", + "lvgl", + "counter", + "3.5", + "gt911" + ] +} diff --git a/firmware/cyd_35r/partitions.bin b/firmware/cyd_35r/partitions.bin new file mode 100644 index 0000000..2108af9 Binary files /dev/null and b/firmware/cyd_35r/partitions.bin differ diff --git a/firmware/export_from_build.ps1 b/firmware/export_from_build.ps1 index a1f4755..daf7e83 100644 --- a/firmware/export_from_build.ps1 +++ b/firmware/export_from_build.ps1 @@ -25,10 +25,12 @@ if ($Env -eq "cyd_35r") { $dstName = "cyd_35r" $boardLine = "board: ESP32-3248S035 (ST7796)" $boardIdHint = "esp32-3248s035" + $featLine = "features: SoftSPI/GT911 touch, LVGL, capacitive touch btn GPIO22, BL=27" } else { $dstName = "cyd" $boardLine = "board: ESP32-2432S028R (ILI9341)" $boardIdHint = "esp32-2432s028" + $featLine = "features: SoftSPI touch, LVGL, capacitive touch btn GPIO22, BL=21" } $dst = Join-Path $root ("firmware\" + $dstName) New-Item -ItemType Directory -Force -Path $dst | Out-Null @@ -45,15 +47,31 @@ if (-not (Test-Path $bootApp)) { } Copy-Item $bootApp (Join-Path $dst "boot_app0.bin") -Force +# Ensure flash scripts exist (copy from sibling folder if needed) +foreach ($script in @("flash.ps1", "flash.bat")) { + $here = Join-Path $dst $script + if (-not (Test-Path $here)) { + $sibling = if ($Env -eq "cyd_35r") { + Join-Path $root "firmware\cyd\$script" + } else { + Join-Path $root "firmware\cyd_35r\$script" + } + if (Test-Path $sibling) { + Copy-Item $sibling $here -Force + } + } +} + $git = "" try { $git = (git -C $root rev-parse --short HEAD).Trim() } catch { $git = "unknown" } $date = Get-Date -Format "yyyy-MM-dd" $hashes = Get-ChildItem (Join-Path $dst "*.bin") | Get-FileHash -Algorithm SHA256 $lines = @( - "name: CYD touchbtntest ($dstName)", + "name: CYD Touch Button ($dstName)", "git: $git", "date: $date", $boardLine, + $featLine, "flash_size: 4MB", "offsets:", " 0x1000 bootloader.bin", @@ -73,8 +91,8 @@ if (Test-Path $metaPath) { try { $meta = Get-Content $metaPath -Raw | ConvertFrom-Json $meta.boardId = $boardIdHint - if ($Env -eq "cyd_35r" -and $meta.name -notmatch "3\.5") { - $meta.name = ($meta.name -replace "\s*$","") + " (3.5\")" + if ($Env -eq "cyd_35r" -and $meta.name -notmatch '3\.5') { + $meta.name = ($meta.name -replace '\s*$','') + ' (3.5")' } $meta | ConvertTo-Json -Depth 8 | Set-Content -Encoding utf8 $metaPath } catch { diff --git a/include/pins.h b/include/pins.h index c56e924..4c44b74 100644 --- a/include/pins.h +++ b/include/pins.h @@ -1,6 +1,7 @@ #pragma once // Board pins — 2.8" default; 3.5" when CYD_BOARD_3248S035 is set (env:cyd_35r) +// See ../CYD_PROJECT_GUIDE.md §A #if defined(CYD_BOARD_3248S035) #define TFT_BL_PIN 27 @@ -8,19 +9,27 @@ #define SCREEN_HEIGHT 480 #define UI_HOR_RES 480 #define UI_VER_RES 320 +/* 3.5C capacitive GT911 (ESP32-3248S035C). GPIO33 is I2C SDA, not TOUCH_CS. + * BL=27; INT=21 (not shared with BL). Touch-btn OUT stays GPIO22. */ +#define CYD_GT911_SDA 33 +#define CYD_GT911_SCL 32 +#define CYD_GT911_INT 21 +#define CYD_GT911_RST 25 +#define CYD_TFT_CS 15 #else #define TFT_BL_PIN 21 #define SCREEN_WIDTH 240 #define SCREEN_HEIGHT 320 #define UI_HOR_RES 320 #define UI_VER_RES 240 -#endif - +/* 2.8" CYD: SoftSPI touch. BL=21; touch-btn OUT GPIO22. */ #define CYD_TOUCH_IRQ 36 #define CYD_TOUCH_MOSI 32 #define CYD_TOUCH_MISO 39 #define CYD_TOUCH_CLK 25 #define CYD_TOUCH_CS 33 +#define CYD_TFT_CS 15 +#endif /* Map 320x240 design coordinates onto the active UI resolution (identity on 2.8"). */ #define UX(x) ((int)(((long)(x) * (UI_HOR_RES)) / 320)) @@ -28,5 +37,12 @@ #define UW(w) UX(w) #define UH(h) UY(h) +/* Partial frame buffer: 3.5 needs smaller ratio to fit DRAM. */ +#if defined(CYD_BOARD_3248S035) +#define DRAW_BUF_DIV 20 +#else +#define DRAW_BUF_DIV 10 +#endif +/* Primary peripheral pin — same on 2.8 and 3.5 */ #define BTN_PIN 22 diff --git a/platformio.ini b/platformio.ini index 51b22c0..8868c68 100644 --- a/platformio.ini +++ b/platformio.ini @@ -55,19 +55,27 @@ build_flags = extra_scripts = pre:copy_lv_conf.py -; Optional 3.5" CYD ESP32-3248S035 (ST7796 resistive). Default remains [env:cyd]. +; Optional 3.5" CYD ESP32-3248S035C (ST7796 + GT911 capacitive). Default [env:cyd]. ; Build: pio run -e cyd_35r +; Keep TOUCH_CS=-1 — GPIO33 is GT911 SDA, not resistive touch CS. +; TFT_BL=GPIO27 (not 21 — 21 is GT911 INT on C boards). See ../CYD_PROJECT_GUIDE.md §A [env:cyd_35r] extends = env:cyd +build_unflags = + -DILI9341_2_DRIVER=1 + -DTFT_WIDTH=240 + -DTFT_HEIGHT=320 + -DTFT_BL=21 + -DLV_MEM_SIZE=49152 build_flags = ${env:cyd.build_flags} - -UILI9341_2_DRIVER -DST7796_DRIVER=1 - -UTFT_WIDTH - -UTFT_HEIGHT -DTFT_WIDTH=320 -DTFT_HEIGHT=480 - -UTFT_BL -DTFT_BL=27 -DCYD_BOARD_3248S035=1 + -DUSE_HSPI_PORT + -DSUPPORT_TRANSACTIONS + -DTFT_RGB_ORDER=TFT_BGR + -DLV_MEM_SIZE=32768 diff --git a/src/main.cpp b/src/main.cpp index 4439dac..b2e6427 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -7,7 +7,7 @@ #include "ui.h" static constexpr uint32_t DRAW_BUF_SIZE = - (SCREEN_WIDTH * SCREEN_HEIGHT / 10 * (LV_COLOR_DEPTH / 8)); + (SCREEN_WIDTH * SCREEN_HEIGHT / DRAW_BUF_DIV * (LV_COLOR_DEPTH / 8)); static uint32_t draw_buf[DRAW_BUF_SIZE / 4]; void setup() { @@ -17,6 +17,13 @@ void setup() { Serial.printf("LVGL %d.%d.%d | Capacitive touch btn GPIO%d\n", lv_version_major(), lv_version_minor(), lv_version_patch(), BTN_PIN); +#if defined(CYD_BOARD_3248S035) + Serial.printf("Board: 3.5C ST7796 %dx%d UI %dx%d BL=%d\n", SCREEN_WIDTH, + SCREEN_HEIGHT, UI_HOR_RES, UI_VER_RES, TFT_BL_PIN); +#else + Serial.printf("Board: 2.8R ILI9341 %dx%d UI %dx%d BL=%d\n", SCREEN_WIDTH, + SCREEN_HEIGHT, UI_HOR_RES, UI_VER_RES, TFT_BL_PIN); +#endif Serial.println("BOOT_OK"); pinMode(TFT_BL_PIN, OUTPUT); diff --git a/src/touch.cpp b/src/touch.cpp index d43b68a..23622a8 100644 --- a/src/touch.cpp +++ b/src/touch.cpp @@ -3,10 +3,13 @@ #include +#if defined(CYD_BOARD_3248S035) +#include +#endif + /** - * SoftSPI XPT2046 - * BL↔TR 是矩形主对角线镜像（XY 对调），不是 180°（180° 会搞成 TL↔BR）。 - * 先按 rot2 得到旧 UI，再做对角修正，反变换喂给 LVGL 270。 + * 2.8": dedicated SoftSPI + BL/TR diagonal fix. + * 3.5C (3248S035C): capacitive GT911 on I2C SDA33/SCL32/INT21/RST25. */ int16_t g_dbg_phys_x = -1; @@ -15,6 +18,181 @@ int16_t g_dbg_logic_x = -1; int16_t g_dbg_logic_y = -1; bool g_dbg_touch_down = false; +static int16_t clampi(int32_t v, int32_t lo, int32_t hi) { + if (v < lo) { + return (int16_t)lo; + } + if (v > hi) { + return (int16_t)hi; + } + return (int16_t)v; +} + +#if defined(CYD_BOARD_3248S035) + +/* Minimal GT911 — no config rewrite (TAMC setResolution can hang Wire). */ +static uint8_t s_gt_addr = 0x5D; +static constexpr uint16_t GT_POINT_INFO = 0x814E; +static constexpr uint16_t GT_POINT_1 = 0x814F; + +static bool gt_write8(uint16_t reg, uint8_t val) { + Wire.beginTransmission(s_gt_addr); + Wire.write((uint8_t)(reg >> 8)); + Wire.write((uint8_t)(reg & 0xFF)); + Wire.write(val); + return Wire.endTransmission() == 0; +} + +static bool gt_read(uint16_t reg, uint8_t *buf, uint8_t len) { + Wire.beginTransmission(s_gt_addr); + Wire.write((uint8_t)(reg >> 8)); + Wire.write((uint8_t)(reg & 0xFF)); + if (Wire.endTransmission(false) != 0) { + return false; + } + const uint8_t n = Wire.requestFrom(s_gt_addr, len); + if (n != len) { + return false; + } + for (uint8_t i = 0; i < len; i++) { + buf[i] = Wire.read(); + } + return true; +} + +static bool gt_probe(uint8_t addr) { + Wire.beginTransmission(addr); + return Wire.endTransmission() == 0; +} + +/* TAMC-compatible address select: INT low => 0x5D, INT high => 0x14 */ +static void gt_hw_reset(bool addr_0x14) { + pinMode(CYD_GT911_INT, OUTPUT); + pinMode(CYD_GT911_RST, OUTPUT); + digitalWrite(CYD_GT911_INT, LOW); + digitalWrite(CYD_GT911_RST, LOW); + delay(10); + digitalWrite(CYD_GT911_INT, addr_0x14 ? HIGH : LOW); + delay(1); + digitalWrite(CYD_GT911_RST, HIGH); + delay(5); + digitalWrite(CYD_GT911_INT, LOW); + delay(50); + /* Backlight is GPIO27 — leave INT as input for polling. */ + pinMode(CYD_GT911_INT, INPUT); + delay(50); +} + +static bool gt_find_addr() { + for (uint8_t a : {uint8_t(0x5D), uint8_t(0x14)}) { + if (gt_probe(a)) { + s_gt_addr = a; + return true; + } + } + return false; +} + +void touch_init() { + Serial.println("Touch: GT911 I2C capacitive (3.5C) minimal"); + Wire.begin(CYD_GT911_SDA, CYD_GT911_SCL); + Wire.setClock(100000); +#if defined(WIRE_HAS_TIMEOUT) || defined(ESP32) + Wire.setTimeOut(50); +#endif + + /* Prefer power-on address (previously 0x5D without reset). */ + if (!gt_find_addr()) { + Serial.println("GT911 not found — hw reset 0x5D"); + gt_hw_reset(false); + if (!gt_find_addr()) { + Serial.println("GT911 not found — hw reset 0x14"); + gt_hw_reset(true); + gt_find_addr(); + } + } + + Serial.printf("GT911 probe 0x5D=%s 0x14=%s using=0x%02X\n", + gt_probe(0x5D) ? "OK" : "no", gt_probe(0x14) ? "OK" : "no", + s_gt_addr); + Serial.printf("GT911 SDA=%d SCL=%d INT=%d RST=%d BL=%d\n", CYD_GT911_SDA, + CYD_GT911_SCL, CYD_GT911_INT, CYD_GT911_RST, TFT_BL_PIN); + Serial.print("I2C scan:"); + for (uint8_t a = 1; a < 127; a++) { + if (gt_probe(a)) { + Serial.printf(" 0x%02X", a); + } + } + Serial.println(); +} + +void touch_read_cb(lv_indev_t * /*indev*/, lv_indev_data_t *data) { + uint8_t info = 0; + static uint32_t last_log = 0; + const bool do_log = (millis() - last_log > 200); + + if (!gt_read(GT_POINT_INFO, &info, 1)) { + data->state = LV_INDEV_STATE_RELEASED; + g_dbg_touch_down = false; + if (do_log) { + last_log = millis(); + Serial.println("TouchProbe GT911 I2C err"); + } + return; + } + + const uint8_t touches = info & 0x0F; + const bool buffered = (info & 0x80) != 0; + + if (!buffered || touches == 0) { + if (buffered) { + gt_write8(GT_POINT_INFO, 0); + } + data->state = LV_INDEV_STATE_RELEASED; + g_dbg_touch_down = false; + return; + } + + uint8_t pt[7]; + if (!gt_read(GT_POINT_1, pt, 7)) { + gt_write8(GT_POINT_INFO, 0); + data->state = LV_INDEV_STATE_RELEASED; + g_dbg_touch_down = false; + return; + } + gt_write8(GT_POINT_INFO, 0); + + const int16_t raw_x = (int16_t)(pt[1] | (pt[2] << 8)); + const int16_t raw_y = (int16_t)(pt[3] | (pt[4] << 8)); + + /* Native 320x480 → LVGL 270 + mirror long axis for correct L/R. + * UI ≈ (H-1-raw_y, raw_x). */ + const int16_t nx = clampi(raw_x, 0, SCREEN_WIDTH - 1); + const int16_t ny = clampi(raw_y, 0, SCREEN_HEIGHT - 1); + const int16_t feed_x = (int16_t)((SCREEN_WIDTH - 1) - nx); + const int16_t feed_y = (int16_t)((SCREEN_HEIGHT - 1) - ny); + const int16_t ui_x = (int16_t)((SCREEN_HEIGHT - 1) - ny); + const int16_t ui_y = nx; + + g_dbg_phys_x = raw_x; + g_dbg_phys_y = raw_y; + g_dbg_logic_x = ui_x; + g_dbg_logic_y = ui_y; + g_dbg_touch_down = true; + + if (do_log) { + last_log = millis(); + Serial.printf("Touch HIT GT911 raw(%d,%d) ~ui(%d,%d)\n", raw_x, raw_y, + ui_x, ui_y); + } + + data->point.x = feed_x; + data->point.y = feed_y; + data->state = LV_INDEV_STATE_PRESSED; +} + +#else + static void soft_write(uint8_t data) { for (int i = 7; i >= 0; --i) { digitalWrite(CYD_TOUCH_MOSI, (data >> i) & 1); @@ -49,16 +227,6 @@ static uint16_t xpt_read(uint8_t cmd) { return v; } -static int16_t clampi(int32_t v, int32_t lo, int32_t hi) { - if (v < lo) { - return (int16_t)lo; - } - if (v > hi) { - return (int16_t)hi; - } - return (int16_t)v; -} - void touch_init() { pinMode(CYD_TOUCH_CS, OUTPUT); pinMode(CYD_TOUCH_CLK, OUTPUT); @@ -94,8 +262,6 @@ void touch_read_cb(lv_indev_t * /*indev*/, lv_indev_data_t *data) { x = clampi(x, 0, SCREEN_WIDTH - 1); y = clampi(y, 0, SCREEN_HEIGHT - 1); - // 旧 UI（LVGL270）：(y, 239-x) — 该空间里 BL↔TR，做主对角线镜像 - // (ux,uy) -> (uy*(319/239), ux*(239/319)) const int32_t old_ux = y; const int32_t old_uy = (SCREEN_WIDTH - 1) - x; int16_t ui_x = clampi((old_uy * (UI_HOR_RES - 1)) / (UI_VER_RES - 1), 0, @@ -103,7 +269,6 @@ void touch_read_cb(lv_indev_t * /*indev*/, lv_indev_data_t *data) { int16_t ui_y = clampi((old_ux * (UI_VER_RES - 1)) / (UI_HOR_RES - 1), 0, UI_VER_RES - 1); - // 反变换喂 LVGL，使最终落在 (ui_x, ui_y) const int16_t feed_x = (int16_t)((SCREEN_WIDTH - 1) - ui_y); const int16_t feed_y = ui_x; @@ -123,3 +288,5 @@ void touch_read_cb(lv_indev_t * /*indev*/, lv_indev_data_t *data) { data->point.y = feed_y; data->state = LV_INDEV_STATE_PRESSED; } + +#endif