Peripheral configurations for ESP32-H2-DevKit boards. More...

Detailed Description

Peripheral configurations for ESP32-H2-DevKit boards.

The peripheral configurations in this file are valid for Espressif ESP32-H2-DevKitx boards that use the ESP32-H2-MINI-1x module.

Since the number of GPIOs and their possible uses on the ESP32-H2 are quite limited, these peripheral configurations can also be used for most other ESP32-H2 boards. Any modifications required for specific applications can be overridden by application-specific board configuration.

For detailed information about the peripheral configuration for ESP32-H2 boards, see section Common Peripherals.

Note: Most definitions can be overridden by an application-specific board configuration if necessary.

Author: Gunar Schorcht gunar.nosp@m.@sch.nosp@m.orcht.nosp@m..net

Definition in file periph_conf.h.

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

Include dependency graph for periph_conf.h:

Go to the source code of this file.

ADC and DAC channel configuration
#define	ADC_GPIOS { GPIO1, GPIO2, GPIO3, GPIO4, GPIO5 }
	Declaration of GPIOs that can be used as ADC channels.

I2C configuration
For generic boards, only one I2C interface I2C_DEV(0) is defined. 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 GPIO10
	SCL signal of I2C_DEV(0)

#define	I2C0_SDA GPIO11
	SDA signal of I2C_DEV(0)

PWM channel configuration
For generic boards, two PWM devices are configured. Generally, all output pins could be used as PWM channels.
#define	PWM0_GPIOS { GPIO2, GPIO12, GPIO22 }
	Declaration of the channels for device PWM_DEV(0), at maximum PWM_CHANNEL_NUM_DEV_MAX.

#define	PWM1_GPIOS { GPIO1, GPIO3, GPIO5 }
	Declaration of the channels for device PWM_DEV(1), at maximum PWM_CHANNEL_NUM_DEV_MAX.

SPI configuration
Note The GPIOs listed in the configuration are only 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.
#define	SPI0_CTRL FSPI
	FSPI is used as SPI_DEV(0)

#define	SPI0_SCK GPIO4
	FSPI SCK (pin FSPICLK)

#define	SPI0_MISO GPIO5
	FSPI MISO (pin FSPIQ)

#define	SPI0_MOSI GPIO0
	FSPI MOSI (pin FSPID)

#define	SPI0_CS0 GPIO1
	FSPI CS0 (pin FSPICS0)

UART configuration
ESP32-H2 provides 2 UART interfaces: UART_DEV(0) uses fixed standard configuration. UART_DEV(1) is not used.
#define	UART0_TXD GPIO24
	direct I/O pin for UART_DEV(0) TxD, can't be changed

#define	UART0_RXD GPIO23
	direct I/O pin for UART_DEV(0) RxD, can't be changed

Macro Definition Documentation

◆ ADC_GPIOS

#define ADC_GPIOS { GPIO1, GPIO2, GPIO3, GPIO4, GPIO5 }

Declaration of GPIOs that can be used as ADC channels.

For generic boards, all ADC pins that are broken out are declared 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 54 of file periph_conf.h.

◆ I2C0_SCL

#define I2C0_SCL GPIO10

SCL signal of I2C_DEV(0)

Definition at line 73 of file periph_conf.h.

◆ I2C0_SDA

#define I2C0_SDA GPIO11

SDA signal of I2C_DEV(0)

Definition at line 76 of file periph_conf.h.

◆ I2C0_SPEED

#define I2C0_SPEED I2C_SPEED_FAST

I2C bus speed of I2C_DEV(0)

Definition at line 70 of file periph_conf.h.

◆ PWM0_GPIOS

#define PWM0_GPIOS { GPIO2, GPIO12, GPIO22 }

Declaration of the channels for device PWM_DEV(0), at maximum PWM_CHANNEL_NUM_DEV_MAX.

Note: PWM_DEV(0) contains only GPIOs that are not used for I2C, SPI or UART on this board. As long as the according PWM device is not initialized with the pwm_init function, the GPIOs declared for this device can be used for the other purposes.

Definition at line 97 of file periph_conf.h.

◆ PWM1_GPIOS

#define PWM1_GPIOS { GPIO1, GPIO3, GPIO5 }

Declaration of the channels for device PWM_DEV(1), at maximum PWM_CHANNEL_NUM_DEV_MAX.

Note: PMW_DEV(1) contains pins that are also used by SPI_DEV(0) or as ADC channel. However, as long as the according PWM device is not initialized with the pwm_init function, the GPIOs declared for this device can be used for the other purposes.

Definition at line 109 of file periph_conf.h.

◆ SPI0_CS0

#define SPI0_CS0 GPIO1

FSPI CS0 (pin FSPICS0)

Definition at line 137 of file periph_conf.h.

◆ SPI0_CTRL

#define SPI0_CTRL FSPI

FSPI is used as SPI_DEV(0)

Definition at line 125 of file periph_conf.h.

◆ SPI0_MISO

#define SPI0_MISO GPIO5

FSPI MISO (pin FSPIQ)

Definition at line 131 of file periph_conf.h.

◆ SPI0_MOSI

#define SPI0_MOSI GPIO0

FSPI MOSI (pin FSPID)

Definition at line 134 of file periph_conf.h.

◆ SPI0_SCK

#define SPI0_SCK GPIO4

FSPI SCK (pin FSPICLK)

Definition at line 128 of file periph_conf.h.

◆ UART0_RXD

#define UART0_RXD GPIO23

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

Definition at line 152 of file periph_conf.h.

◆ UART0_TXD

#define UART0_TXD GPIO24

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

Definition at line 151 of file periph_conf.h.