external_adc_test.c File Reference

Source file to check external ADC test. More...

#include <stdio.h>
#include <stdlib.h>
#include <sys/ioctl.h>
#include <linux/gpio.h>
#include <fcntl.h>
#include <linux/spi/spidev.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#include <pthread.h>
#include <sys/eventfd.h>
#include <sys/epoll.h>
#include <stdint.h>
#include <time.h>
#include <getopt.h>
#include <sys/time.h>
#include <linux/types.h>
#include <linux/i2c-dev.h>
#include "main.h"

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Macros
#define	I2C_DEVICE   "/dev/i2c-1"
#define	I2C_ADDR_EX   0x48

Functions
float	external_adc_reading_voltage (int i2cFile_ex_va)
	To read the voltage of the VA measured using external adc.
int	external_adc (void)
	Function to test the External ADC.

Variables
struct i2c_msg	i2cmsg
struct i2c_rdwr_ioctl_data	msg_rdwr
int	i2c_va_led_file

Detailed Description

Source file to check external ADC test.

Macro Definition Documentation

I2C_ADDR_EX

#define I2C_ADDR_EX   0x48

I2C_DEVICE

#define I2C_DEVICE   "/dev/i2c-1"

Function Documentation

external_adc()

int external_adc

(

void

)

Function to test the External ADC.

Returns

API_FAILURE_test on failure or API_SUCCESS_test on success

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external_adc_reading_voltage()

float external_adc_reading_voltage

(

int

i2cFile_ex_va

)

To read the voltage of the VA measured using external adc.

Parameters

i2cFile_ex_va

file discriptor

Returns

voltage_va Value of the voltage read

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Variable Documentation

i2c_va_led_file

int i2c_va_led_file

extern

i2cmsg

struct i2c_msg i2cmsg

extern

msg_rdwr

struct i2c_rdwr_ioctl_data msg_rdwr

extern