Peripheral MCU configuration for Espressif ESP32-Ethernet-Kit. More...

Detailed Description

Peripheral MCU configuration for Espressif ESP32-Ethernet-Kit.

Author: Gunar Schorcht gunar.nosp@m.@sch.nosp@m.orcht.nosp@m..net; Erik Ekman eekma.nosp@m.n@go.nosp@m.ogle..nosp@m.com

Definition in file periph_conf.h.

#include <stdint.h>
#include "periph_conf_common.h"

Include dependency graph for periph_conf.h:

ADC and DAC channel configuration
#define	ADC_GPIOS { GPIO34, GPIO35, GPIO36, GPIO39 }
	Declaration of GPIOs that can be used as ADC channels.

Declaration of GPIOs that can be used as DAC channels
ESP32-Ethernet-Kit has no GPIOs left that might be used as DAC channels.
#define	DAC_GPIOS { }

I2C configuration
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.
#define	I2C0_SPEED I2C_SPEED_FAST
	I2C bus speed of I2C_DEV(0)

#define	I2C0_SCL GPIO33
	SCL signal of I2C_DEV(0)

#define	I2C0_SDA GPIO32
	SDA signal of I2C_DEV(0)

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.
#define	PWM0_GPIOS { GPIO2, GPIO4 }

SPI configuration
SPI configuration depends on configured/connected components. HSPI is only available when all JTAG pins are disabled.
#define	SPI0_CTRL HSPI
	HSPI is used as SPI_DEV(0)

#define	SPI0_SCK GPIO14
	HSPI SCK.

#define	SPI0_MISO GPIO12
	HSPI MISO.

#define	SPI0_MOSI GPIO13
	HSPI MOSI.

#define	SPI0_CS0 GPIO15
	HSPI CS0.

UART configuration
ESP32 provides 3 UART interfaces at maximum: UART_DEV(0) uses fixed standard configuration. UART_DEV(1) is not available. UART_DEV(2) is not available.
#define	UART0_TXD GPIO1
	direct I/O pin for UART_DEV(0) TxD, can't be changed

#define	UART0_RXD GPIO3
	direct I/O pin for UART_DEV(0) RxD, can't be changed

Macro Definition Documentation

◆ ADC_GPIOS

#define ADC_GPIOS { GPIO34, GPIO35, GPIO36, GPIO39 }

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.

Definition at line 37 of file periph_conf.h.

◆ DAC_GPIOS

#define DAC_GPIOS { }

Definition at line 48 of file periph_conf.h.

◆ I2C0_SCL

#define I2C0_SCL GPIO33

SCL signal of I2C_DEV(0)

Definition at line 65 of file periph_conf.h.

◆ I2C0_SDA

#define I2C0_SDA GPIO32

SDA signal of I2C_DEV(0)

Definition at line 68 of file periph_conf.h.

◆ I2C0_SPEED

#define I2C0_SPEED I2C_SPEED_FAST

I2C bus speed of I2C_DEV(0)

Definition at line 62 of file periph_conf.h.

◆ PWM0_GPIOS

#define PWM0_GPIOS { GPIO2, GPIO4 }

Definition at line 85 of file periph_conf.h.

◆ SPI0_CS0

#define SPI0_CS0 GPIO15

HSPI CS0.

Definition at line 105 of file periph_conf.h.

◆ SPI0_CTRL

#define SPI0_CTRL HSPI

HSPI is used as SPI_DEV(0)

Definition at line 101 of file periph_conf.h.

◆ SPI0_MISO

#define SPI0_MISO GPIO12

HSPI MISO.

Definition at line 103 of file periph_conf.h.

◆ SPI0_MOSI

#define SPI0_MOSI GPIO13

HSPI MOSI.

Definition at line 104 of file periph_conf.h.

◆ SPI0_SCK

#define SPI0_SCK GPIO14

HSPI SCK.

Definition at line 102 of file periph_conf.h.

◆ UART0_RXD

#define UART0_RXD GPIO3

direct I/O pin for UART_DEV(0) RxD, can't be changed

Definition at line 120 of file periph_conf.h.

◆ UART0_TXD

#define UART0_TXD GPIO1

direct I/O pin for UART_DEV(0) TxD, can't be changed

Definition at line 119 of file periph_conf.h.