board.h File Reference

Board specific definitions for Olimex ESP32-EVB (ESP32-GATEWAY) More...

Detailed Description

Board specific definitions 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 Common Peripherals.

Note

Most definitions can be overridden by an application-specific board configuration.

Author

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

Definition in file board.h.

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

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Go to the source code of this file.

Functions
static void	board_init (void)
	Initialize the board specific hardware.

Button pin definitions
#define	BTN0_PIN   GPIO34
	Default button GPIO pin definition.
#define	BTN0_MODE   GPIO_IN
	Default button GPIO mode definition. More...
#define	BTN0_INT_FLANK   GPIO_FALLING
	Default interrupt flank definition for the button GPIO.
#define	BUTTON0_PIN   BTN0_PIN
	Definition for compatibility with previous versions.

SD-Card interface configuration
SD-Card interface uses SPI_DEV(1) on this board. Note On Olimex ESP32-EVB, the CD/CS pin is not connected and simply pulled-up. Therefore, SPI bus mode is not available and the card interface can be used only in 1-bit SD bus mode. That is, SPI SD-Card is not working. On Olimex ESP32-GATEWAY, the CD/CS pin is connected to GPIO13. The SPI SD-Card driver should work on this board.
#define	SDCARD_SPI_PARAM_SPI   SPI_DEV(0)
#define	SDCARD_SPI_PARAM_CS   GPIO13
#define	SDCARD_SPI_PARAM_CLK   SPI0_SCK
#define	SDCARD_SPI_PARAM_MOSI   SPI0_MOSI
#define	SDCARD_SPI_PARAM_MISO   SPI0_MISO
#define	SDCARD_SPI_PARAM_POWER   GPIO_UNDEF

ESP32 Ethernet (EMAC) configuration
#define	EMAC_PHY_LAN8720   1
	LAN8710 used as PHY interface.
#define	EMAC_PHY_ADDRESS   0
	PHY0 used as base address.
#define	EMAC_PHY_SMI_MDC_PIN   23
	SMI MDC pin.
#define	EMAC_PHY_SMI_MDIO_PIN   18
	SMI MDC pin.
#define	EMAC_PHY_CLOCK_MODE   ETH_CLOCK_GPIO0_IN
	external 50 MHz clock
#define	EMAC_PHY_POWER_PIN   GPIO_UNDEF
	power enable pin not used

Macro Definition Documentation

BTN0_MODE

#define BTN0_MODE   GPIO_IN

Default button GPIO mode definition.

Since the GPIO of the button is pulled up with an external resistor, the mode for the GPIO pin has to be GPIO_IN.

Definition at line 55 of file board.h.