111 lines
5.0 KiB
C
111 lines
5.0 KiB
C
/*
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────────────────────────────────────────────────────────────────────────
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KodeDot – ESP32-S3R8 Variant (rev. with OPI flash/PSRAM)
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Pin definition file for the Arduino-ESP32 core
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────────────────────────────────────────────────────────────────────────
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* External 2 × 10 connector → simple aliases PIN1 … PIN20
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* On-board QSPI LCD 410×502 @40 MHz (SPI3_HOST)
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* micro-SD on SDMMC (1-bit)
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* Dual-I²C: external (GPIO37/36) + internal-sensors (GPIO48/47)
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* USB VID/PID 0x303A:0x1001
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*/
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#ifndef Pins_Arduino_h
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#define Pins_Arduino_h
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#include <stdint.h>
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#include <stdbool.h>
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/*──────────────── USB device descriptor ────────────────*/
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#define USB_VID 0x303A // Espressif Systems VID
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#define USB_PID 0x1001 // Product ID: KodeDot-S3
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/*──────────────── UART0 (Arduino Serial) ────────────────*/
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static const uint8_t TX = 43; // U0TXD – PIN16 on the 2×10 header
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static const uint8_t RX = 44; // U0RXD – PIN18 on the 2×10 header
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/*──────────────── I²C buses ─────────────────────────────*/
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/* External expansion bus → header pins 11/13 */
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static const uint8_t SCL = 37; // GPIO37 – PIN12
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static const uint8_t SDA = 36; // GPIO36 – PIN14
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/* Internal sensor/touch bus (not on header) */
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#define INT_I2C_SCL 47 // GPIO47
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#define INT_I2C_SDA 48 // GPIO48
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/*──────────────── SDMMC – micro-SD (1-bit) ───────────────*/
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#define BOARD_HAS_SD_SDMMC
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#define SDMMC_CMD 5 // SD_CMD
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#define SDMMC_CLK 6 // SD_CLK
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#define SDMMC_D0 7 // SD_D0
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#define SD_CS -1 // No CS pin in SDMMC mode
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/*──────────────── QSPI LCD (SPI3_HOST) ─────────────────–
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* Controller: ST7789 / 4-line SPI (no D/C pin)
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* Resolution: 410×502 px, 16 bpp, RGB color-space
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* Clock: 40 MHz
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*/
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#define BOARD_HAS_SPI_LCD
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#define LCD_MODEL ST7789
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#define LCD_WIDTH 410
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#define LCD_HEIGHT 502
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#define LCD_HOST SPI3_HOST
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#define LCD_SCK 17 // GPIO17 • QSPI_CLK
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#define LCD_MOSI 15 // GPIO15 • QSPI_IO0 (D0)
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#define LCD_IO1 14 // GPIO14 • QSPI_IO1 (D1)
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#define LCD_IO2 16 // GPIO16 • QSPI_IO2 (D2)
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#define LCD_IO3 10 // GPIO10 • QSPI_IO3 (D3)
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#define LCD_CS 9 // GPIO09
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#define LCD_RST 8 // GPIO08
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#define LCD_DC -1 // not used in 4-line SPI
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/*──────────────── Analog / Touch pads ────────────────*/
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static const uint8_t A0 = 11; // PIN4 – GPIO11 / TOUCH11 / ADC2_CH0
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static const uint8_t A1 = 12; // PIN6 – GPIO12 / TOUCH12 / ADC2_CH1
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static const uint8_t A2 = 13; // PIN8 – GPIO13 / TOUCH13 / ADC2_CH2
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static const uint8_t A3 = 14; // PIN10 – GPIO14 / TOUCH14 / ADC2_CH3
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static const uint8_t T0 = A0, T1 = A1, T2 = A2, T3 = A3;
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/*──────────────── On-board controls & indicator ─────────*/
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#define BUTTON_TOP 0 // GPIO00 – BOOT • active-LOW
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#define BUTTON_BOTTOM -1 // via IO expander • no direct GPIO
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#define NEOPIXEL_PIN 4 // GPIO04 – WS2812
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#define LED_BUILTIN NEOPIXEL_PIN
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/*──────────────── JTAG (also on connector) ──────────────*/
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#define MTCK 39 // PIN11 – GPIO39
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#define MTDO 40 // PIN13 – GPIO40
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#define MTDI 41 // PIN15 – GPIO41
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#define MTMS 42 // PIN17 – GPIO42
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/*──────────────── 2×10 header: simple aliases ───────────
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NOTE: power pins (1 = 5 V, 2 = 3 V3, 19/20 = GND) are **not**
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exposed as GPIO numbers – they remain undefined here. */
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#define PIN3 1 // GPIO01 / TOUCH1 / ADC1_CH0
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#define PIN4 11 // GPIO11 / TOUCH11 / ADC2_CH0
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#define PIN5 2 // GPIO02 / TOUCH2 / ADC1_CH1
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#define PIN6 12 // GPIO12 / TOUCH12 / ADC2_CH1
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#define PIN7 3 // GPIO03 / TOUCH3 / ADC1_CH2
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#define PIN8 13 // GPIO13 / TOUCH13 / ADC2_CH2
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#define PIN9 4 // GPIO04 / TOUCH4 / ADC1_CH3
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#define PIN10 14 // GPIO14 / TOUCH14 / ADC2_CH3
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#define PIN11 39 // MTCK
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#define PIN12 37 // SCL (external I²C)
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#define PIN13 40 // MTDO
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#define PIN14 36 // SDA (external I²C)
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#define PIN15 41 // MTDI
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#define PIN16 43 // TX (U0TXD)
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#define PIN17 42 // MTMS
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#define PIN18 44 // RX (U0RXD)
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/* PIN1, PIN2, PIN19, PIN20 are power/ground and deliberately
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left undefined – they are **not** usable as GPIO. */
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/* ==== Default SPI pins for library compatibility ==== */
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#define SCK 17 // LCD_SCK • QSPI_CLK
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#define MISO -1 // No MISO available in this design
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#define MOSI 15 // LCD_MOSI • QSPI_IO0
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#define SS 9 // LCD_CS
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#endif /* Pins_Arduino_h */
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