ESP32-P4_DANTE/main/board_config.h

/*
 * board_config.h — hardware pin map for the ESP32-P4 Dante/AES67 endpoint.
 *
 * Reference target: DatanoiseTV ESP32-P4-NANO (Ethernet via IP101 GRI PHY on
 * RMII, onboard ES8311 codec + NS4150B amp). Values mirror the pin table in
 * README.md. If the deployed board differs, update BOTH this file and the
 * README table together (see CLAUDE.md).
 *
 * NOTE: some I2S functions have alternate "onboard" pin options noted in the
 * README. The active values below use the primary column; onboard variants
 * are listed in comments for quick swapping.
 */
#pragma once

/* ---- Ethernet (RMII to IP101 GRI PHY) ---- */
#define BOARD_ETH_MDC_GPIO      31
#define BOARD_ETH_MDIO_GPIO     52
#define BOARD_ETH_REF_CLK_GPIO  50  /* external 50 MHz clock */
#define BOARD_ETH_PHY_RST_GPIO  51
#define BOARD_ETH_PHY_ADDR      1

/* ---- I2S audio to ES8311 codec ---- */
#define BOARD_I2S_MCLK_GPIO     13  /* 18.432 MHz via APLL */
#define BOARD_I2S_BCLK_GPIO     36  /* onboard alt: 12 */
#define BOARD_I2S_LRCLK_GPIO    33  /* onboard alt: 10 */
#define BOARD_I2S_DOUT_GPIO     32  /* onboard alt: 9  */
#define BOARD_I2S_DIN_GPIO      11  /* codec ADC input */

/* ---- Power amp enable (NS4150B) ---- */
#define BOARD_PA_ENABLE_GPIO    53  /* active high */

/* ---- I2C control bus (ES8311) ---- */
#define BOARD_I2C_SCL_GPIO      8
#define BOARD_I2C_SDA_GPIO      7

/* ---- Default audio format ---- */
#define BOARD_AUDIO_SAMPLE_RATE 48000
#define BOARD_AUDIO_BIT_DEPTH   24  /* AES67 L24 */
#define BOARD_AUDIO_CHANNELS    2