DESKTOP-PUHFO60\dsx2016
4bd42a9c39
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>
54 lines
1.5 KiB
C
54 lines
1.5 KiB
C
#pragma once
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// Board pins — 2.8" default; 3.5" when CYD_BOARD_3248S035 is set (env:cyd_35r)
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#if defined(CYD_BOARD_3248S035)
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#define TFT_BL_PIN 27
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#define SCREEN_WIDTH 320
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#define SCREEN_HEIGHT 480
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#define UI_HOR_RES 480
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#define UI_VER_RES 320
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/* 3.5C capacitive GT911 (ESP32-3248S035C). GPIO33 is I2C SDA, not TOUCH_CS.
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* Backlight is GPIO27; INT is GPIO21 — they are NOT the same pin. */
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#define CYD_GT911_SDA 33
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#define CYD_GT911_SCL 32
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#define CYD_GT911_INT 21
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#define CYD_GT911_RST 25
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#else
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#define TFT_BL_PIN 21
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#define SCREEN_WIDTH 240
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#define SCREEN_HEIGHT 320
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#define UI_HOR_RES 320
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#define UI_VER_RES 240
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/* 2.8" CYD: dedicated SoftSPI touch bus. */
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#define CYD_TOUCH_IRQ 36
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#define CYD_TOUCH_MOSI 32
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#define CYD_TOUCH_MISO 39
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#define CYD_TOUCH_CLK 25
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#define CYD_TOUCH_CS 33
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#endif
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/* Map 320x240 design coordinates onto the active UI resolution (identity on 2.8"). */
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#define UX(x) ((int)(((long)(x) * (UI_HOR_RES)) / 320))
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#define UY(y) ((int)(((long)(y) * (UI_VER_RES)) / 240))
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#define UW(w) UX(w)
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#define UH(h) UY(h)
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/* Partial frame buffer: 3.5 needs smaller ratio to fit DRAM. */
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#if defined(CYD_BOARD_3248S035)
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#define DRAW_BUF_DIV 20
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#else
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#define DRAW_BUF_DIV 10
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#endif
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/* LCD1602A I2C backpack: 2.8 forever 22+27; 3.5 forever 22+21 (27 is BL). */
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#define LCD_I2C_SDA_PIN 22
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#if defined(CYD_BOARD_3248S035)
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#define LCD_I2C_SCL_PIN 21
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#else
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#define LCD_I2C_SCL_PIN 27
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#endif
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#define LCD_I2C_FREQ_HZ 100000
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#define LCD_COLS 16
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#define LCD_ROWS 2
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