Configuration of CPU peripherals for the Waveshare ESP32-S3 1.28-inch round display board (Touch version) More...

Detailed Description

Configuration of CPU peripherals for the Waveshare ESP32-S3 1.28-inch round display board (Touch version)

Author: Gunar Schorcht gunar.nosp@m.@sch.nosp@m.orcht.nosp@m..net; Yahia Abdella yahia.nosp@m..abd.nosp@m.ella@.nosp@m.tuhh.nosp@m..de

Definition in file periph_conf.h.

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

Include dependency graph for periph_conf.h:

ADC channel configuration
#define	ADC_GPIOS { GPIO1 }
	Declaration of GPIOs that can be used as ADC channels.

SPI configuration
SPI_DEV(0) is used for the LCD display 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. Otherwise 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 SPI2_HOST
	SPI2 (FSPI) is configured as SPI_DEV(0)

#define	SPI0_SCK GPIO10
	LCD SCLK.

#define	SPI0_MOSI GPIO11
	LCD SDA.

#define	SPI0_MISO GPIO12
	LCD SDO.

#define	SPI0_CS0 GPIO9
	LCD CS.

I2C configuration
I2C_DEV(0) is used for the IMU and the touch controller. 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 GPIO7
	SCL signal of I2C_DEV(0)

#define	I2C0_SDA GPIO6
	SDA signal of I2C_DEV(0)

UART configuration
ESP32-S3 provides 3 UART interfaces at maximum: UART_DEV(0) uses fixed standard configuration. UART_DEV(1) is not used.
#define	UART0_TXD GPIO43
	direct I/O pin for UART_DEV(0) TxD, can't be changed

#define	UART0_RXD GPIO44
	direct I/O pin for UART_DEV(0) RxD, can't be changed

Macro Definition Documentation

◆ ADC_GPIOS

#define ADC_GPIOS { GPIO1 }

Declaration of GPIOs that can be used as ADC channels.

GPIO1 can be used for Battery voltage monitoring as ADC_LINE(0): V_BAT = 3.3 / (1 << 12) * 3 * ADC_Value

Definition at line 38 of file periph_conf.h.

◆ I2C0_SCL

#define I2C0_SCL GPIO7

SCL signal of I2C_DEV(0)

Definition at line 87 of file periph_conf.h.

◆ I2C0_SDA

#define I2C0_SDA GPIO6

SDA signal of I2C_DEV(0)

Definition at line 90 of file periph_conf.h.

◆ I2C0_SPEED

#define I2C0_SPEED I2C_SPEED_FAST

I2C bus speed of I2C_DEV(0)

Definition at line 84 of file periph_conf.h.

◆ SPI0_CS0

#define SPI0_CS0 GPIO9

LCD CS.

Definition at line 68 of file periph_conf.h.

◆ SPI0_CTRL

#define SPI0_CTRL SPI2_HOST

SPI2 (FSPI) is configured as SPI_DEV(0)

Definition at line 56 of file periph_conf.h.

◆ SPI0_MISO

#define SPI0_MISO GPIO12

LCD SDO.

Definition at line 65 of file periph_conf.h.

◆ SPI0_MOSI

#define SPI0_MOSI GPIO11

LCD SDA.

Definition at line 62 of file periph_conf.h.

◆ SPI0_SCK

#define SPI0_SCK GPIO10

LCD SCLK.

Definition at line 59 of file periph_conf.h.

◆ UART0_RXD

#define UART0_RXD GPIO44

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

Definition at line 105 of file periph_conf.h.

◆ UART0_TXD

#define UART0_TXD GPIO43

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

Definition at line 104 of file periph_conf.h.