improve board config setup

board_configs/board_pico2_eink.h

@@ -0,0 +1,52 @@
+#ifndef BOARD_PICO2_EINK_H
+#define BOARD_PICO2_EINK_H
+
+#include "pico/stdlib.h"
+
+// ============================================================================
+// Raspberry Pi Pico 2 with E-Ink Display
+// ============================================================================
+
+#define BOARD_NAME "Raspberry Pi Pico 2 + E-Ink Display"
+
+// Display Configuration
+#define DISPLAY_WIDTH 400
+#define DISPLAY_HEIGHT 300
+#define DISPLAY_TYPE_SELECTED 2  // DISPLAY_TYPE_EPAPER_VAL
+
+// Touch Configuration (if your e-ink has touch, otherwise use TOUCH_TYPE_NONE)
+#define TOUCH_TYPE_SELECTED 1  // TOUCH_TYPE_NONE_VAL
+#define TOUCH_SWAP_XY false
+#define TOUCH_INVERT_X false
+#define TOUCH_INVERT_Y false
+
+// SPI pins for E-Ink display (using SPI0)
+#define DISPLAY_SPI_PORT spi0
+#define DISPLAY_SCK_PIN  2   // GP2
+#define DISPLAY_MOSI_PIN 3   // GP3
+#define DISPLAY_MISO_PIN 4   // GP4 (often not used by e-paper)
+#define DISPLAY_CS_PIN   5   // GP5
+#define DISPLAY_DC_PIN   6   // GP6 (Data/Command)
+#define DISPLAY_RST_PIN  7   // GP7 (Reset)
+#define DISPLAY_BL_PIN   8   // GP8 - Not used for e-ink, but needs valid pin number
+#define DISPLAY_BUSY_PIN 9   // GP9 - E-paper BUSY pin (critical!)
+
+// I2C pins for touch (if using touch-enabled e-ink)
+#define TOUCH_I2C_PORT i2c0
+#define TOUCH_SDA_PIN  12  // GP12
+#define TOUCH_SCL_PIN  13  // GP13
+#define TOUCH_INT_PIN  14  // GP14
+#define TOUCH_RST_PIN  15  // GP15
+
+// SD card pins (separate SPI1) - optional
+#define SD_SPI_PORT    spi1
+#define SD_CS_PIN      17  // GP17
+#define SD_MISO_PIN    16  // GP16
+#define SD_MOSI_PIN    19  // GP19
+#define SD_SCK_PIN     18  // GP18
+
+// Common configuration
+#define SPI_BAUDRATE (4 * 1000 * 1000)   // 4 MHz for e-paper (slower than TFT)
+#define I2C_BAUDRATE (400 * 1000)        // 400 kHz for touch
+
+#endif // BOARD_PICO2_EINK_H