/* * Copyright (C) 2018 Gunar Schorcht * * This file is subject to the terms and conditions of the GNU Lesser * General Public License v2.1. See the file LICENSE in the top level * directory for more details. */ /** * @ingroup boards_esp32_olimex-esp32-evb * @brief Peripheral MCU configuration for Olimex ESP32-EVB (ESP32-GATEWAY) * @{ * * This configuration is for the Olimex ESP32-EVB, but can also be used * for the Olimex ESP32-GATEWAY. To use this board definition with Olimex * ESP32-GATEWAY, add * ``` * USEMODULE += olimex_esp32_gateway * ``` * to the makefile of the application to use the according default board * configuration. * * For detailed information about the configuration of ESP32 boards, see * section \ref esp32_peripherals "Common Peripherals". * * @note * Most definitions can be overridden by an \ref esp32_application_specific_configurations * "application-specific board configuration". * * @author Gunar Schorcht * @file */ #ifndef PERIPH_CONF_H #define PERIPH_CONF_H #include #include "periph_cpu.h" #ifdef __cplusplus extern "C" { #endif /** * @name ADC and DAC channel configuration * * @note As long as the GPIOs listed in ADC_GPIOS are not initialized as ADC * channels with the `adc_init` function, they can be used for other * * purposes. * @{ */ /** * @brief Declaration of GPIOs that can be used as ADC channels * * @note As long as the GPIOs listed in ADC_GPIOS are not initialized as ADC * channels with the `adc_init` function, they can be used for other * purposes. */ #ifndef ADC_GPIOS #if MODULE_OLIMEX_ESP32_GATEWAY #define ADC_GPIOS { GPIO32, GPIO35, GPIO36, GPIO39 } #else /* MODULE_OLIMEX_ESP32_GATEWAY */ #define ADC_GPIOS { } #endif /* MODULE_OLIMEX_ESP32_GATEWAY */ #endif /* ADC_GPIOS */ /** Olimex ESP32-EVB has no GPIOs left that might be used as DAC channels. */ #ifndef DAC_GPIOS #define DAC_GPIOS { } #endif /** @} */ /** * @name CAN configuration * * Olimex ESP32-EVB has a CAN interface including a CAN transceiver on board. */ #ifndef MODULE_OLIMEX_ESP32_GATEWAY #define CAN_TX GPIO5 /**< CAN TX transceiver signal */ #define CAN_RX GPIO35 /**< CAN RX transceiver signal */ #endif /** * @name I2C configuration * * Olimex ESP32-EVB/GATEWAY have one I2C interface `I2C_DEV(0)`. However, * they use different GPIOs. Olimex ESP32-EVB, the interface is also available * at the [UEXT] connector. * * @note The GPIOs listed in the configuration are only initialized as I2C * signals when module `periph_i2c` is used. Otherwise they are not * allocated and can be used for other purposes. * * @{ */ #ifndef I2C0_SPEED #define I2C0_SPEED I2C_SPEED_FAST /**< I2C bus speed of I2C_DEV(0) */ #endif #ifdef MODULE_OLIMEX_ESP32_GATEWAY #ifndef I2C0_SCL #define I2C0_SCL GPIO16 /**< SCL signal of I2C_DEV(0) [UEXT] */ #endif #ifndef I2C0_SDA #define I2C0_SDA GPIO17 /**< SDA signal of I2C_DEV(0) [UEXT] */ #endif #else /* MODULE_OLIMEX_ESP32_GATEWAY */ #ifndef I2C0_SCL #define I2C0_SCL GPIO16 /**< SCL signal of I2C_DEV(0) */ #endif #ifndef I2C0_SDA #define I2C0_SDA GPIO13 /**< SDA signal of I2C_DEV(0) */ #endif #endif /* MODULE_OLIMEX_ESP32_GATEWAY */ /** @} */ /** * @name PWM channel configuration * * @note As long as the according PWM device is not initialized with * the `pwm_init`, the GPIOs declared for this device can be used * for other purposes. * * @{ */ /** * In DOUT and DIO flash mode, GPIO9 and GIO10 are available and can be used * as PWM channels with `PWM_DEV(0)`. */ #ifndef PWM0_GPIOS #if CONFIG_FLASHMODE_DOUT || CONFIG_FLASHMODE_DIO || DOXYGEN #define PWM0_GPIOS { GPIO9, GPIO10 } #else #error Configuration problem: Flash mode qio or qout is used, \ GPIO9 and GPIO10 cannot be used as PWM channels as configured #endif #endif /** @} */ /** * @name SD/MMC host controller configuration * @{ */ /** SDMMC devices */ static const sdmmc_conf_t sdmmc_config[] = { { .slot = SDMMC_SLOT_1, .cd = GPIO_UNDEF, .wp = GPIO_UNDEF, #if MODULE_OLIMEX_ESP32_GATEWAY .bus_width = 4, #else .bus_width = 1, #endif }, }; /** Number of configured SDMMC devices */ #define SDMMC_CONFIG_NUMOF 1 /** @} */ /** * @name SPI configuration * @{ */ /** * @brief HSPI is used as SPI_DEV(0) * * It is available at the [UEXT] connector on Olimex ESP32-EVB. * If the SD Card/MMC interface is used, the SPI interface is not available. * * @note The GPIOs listed in the configuration are first initialized as SPI * signals when the corresponding SPI interface is used for the first time * by either calling the `spi_init_cs` function or the `spi_acquire` * function. That is, they are not allocated as SPI signals before and can * be used for other purposes as long as the SPI interface is not used. */ #if !MODULE_PERIPH_SDMMC && !MODULE_OLIMEX_ESP32_GATEWAY #ifndef SPI0_CTRL #define SPI0_CTRL HSPI #endif #ifndef SPI0_SCK #define SPI0_SCK GPIO14 /**< SCK [UEXT] / SD card interface] */ #endif #ifndef SPI0_MISO #define SPI0_MISO GPIO2 /**< MISO [UEXT] / SD card interface] */ #endif #ifndef SPI0_MOSI #define SPI0_MOSI GPIO15 /**< MOSI [UEXT] / SD Card interface] */ #endif #ifndef SPI0_CS0 #define SPI0_CS0 GPIO17 /**< CS0 [UEXT] */ #endif #endif /* !MODULE_PERIPH_SDMMC && !MODULE_OLIMEX_ESP32_GATEWAY */ /** @} */ /** * @name UART configuration * * ESP32 provides 3 UART interfaces at maximum: * * UART_DEV(0) uses fixed standard configuration.
* UART_DEV(1) is defined here.
* UART_DEV(2) is not used.
* * If the board definition is used for Olimex EVB-GATEWAY, the UART_DEV(1) * interface is not available. * * @{ */ #define UART0_TXD GPIO1 /**< direct I/O pin for UART_DEV(0), can't be changed */ #define UART0_RXD GPIO3 /**< direct I/O pin for UART_DEV(0), can't be changed */ #if !MODULE_OLIMEX_ESP32_GATEWAY #ifndef UART1_TXD #define UART1_TXD GPIO4 /**< UART_DEV(1) TxD */ #endif #ifndef UART1_RXD #define UART1_RXD GPIO36 /**< UART_DEV(1) RxD */ #endif #endif /* !MODULE_OLIMEX_ESP32_GATEWAY */ /** @} */ #ifdef __cplusplus } /* end extern "C" */ #endif /* include common peripheral definitions as last step */ #include "periph_conf_common.h" #endif /* PERIPH_CONF_H */ /** @} */