i2c_driver.cpp File Reference

#include <cstring>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "driver/gpio.h"
#include "esp_log.h"
#include "sdkconfig.h"
#include "i2c_driver.h"

Include dependency graph for esp_idf_touch/main/i2c_driver.cpp:

Go to the source code of this file.

Macros
#define	I2C_MASTER_NUM   (i2c_port_t)CONFIG_I2C_MASTER_PORT_NUM
#define	I2C_MASTER_SDA_IO   (gpio_num_t)CONFIG_SENSOR_SDA
#define	I2C_MASTER_SCL_IO   (gpio_num_t)CONFIG_SENSOR_SCL
#define	I2C_MASTER_FREQ_HZ   CONFIG_I2C_MASTER_FREQUENCY
#define	I2C_MASTER_TX_BUF_DISABLE   0
#define	I2C_MASTER_RX_BUF_DISABLE   0

Functions
esp_err_t	i2c_drv_init (void)
	i2c master initialization
void	i2c_drv_scan ()
bool	i2c_drv_probe (uint8_t devAddr)

Macro Definition Documentation

I2C_MASTER_FREQ_HZ

#define I2C_MASTER_FREQ_HZ   CONFIG_I2C_MASTER_FREQUENCY

I2C master clock frequency

Definition at line 43 of file esp_idf_touch/main/i2c_driver.cpp.

I2C_MASTER_NUM

#define I2C_MASTER_NUM   (i2c_port_t)CONFIG_I2C_MASTER_PORT_NUM

Definition at line 40 of file esp_idf_touch/main/i2c_driver.cpp.

I2C_MASTER_RX_BUF_DISABLE

#define I2C_MASTER_RX_BUF_DISABLE   0

I2C master doesn't need buffer

Definition at line 45 of file esp_idf_touch/main/i2c_driver.cpp.

I2C_MASTER_SCL_IO

#define I2C_MASTER_SCL_IO   (gpio_num_t)CONFIG_SENSOR_SCL

Definition at line 42 of file esp_idf_touch/main/i2c_driver.cpp.

I2C_MASTER_SDA_IO

#define I2C_MASTER_SDA_IO   (gpio_num_t)CONFIG_SENSOR_SDA

Definition at line 41 of file esp_idf_touch/main/i2c_driver.cpp.

I2C_MASTER_TX_BUF_DISABLE

#define I2C_MASTER_TX_BUF_DISABLE   0

I2C master doesn't need buffer

Definition at line 44 of file esp_idf_touch/main/i2c_driver.cpp.

Function Documentation

i2c_drv_init()

esp_err_t i2c_drv_init

(

void

)

i2c master initialization

Definition at line 174 of file esp_idf_touch/main/i2c_driver.cpp.

References I2C_MASTER_FREQ_HZ, I2C_MASTER_NUM, I2C_MASTER_RX_BUF_DISABLE, I2C_MASTER_SCL_IO, I2C_MASTER_SDA_IO, and I2C_MASTER_TX_BUF_DISABLE.

Referenced by app_main().

i2c_drv_probe()

bool i2c_drv_probe

(

uint8_t

devAddr

)

Definition at line 261 of file esp_idf_touch/main/i2c_driver.cpp.

References cmd, and I2C_MASTER_NUM.

Referenced by touch_drv_init().

i2c_drv_scan()

void i2c_drv_scan

(

)

Definition at line 208 of file esp_idf_touch/main/i2c_driver.cpp.

References cmd, i, and I2C_MASTER_NUM.

Referenced by app_main(), and touch_drv_init().