FT4222_GPIO_INPUT.c

#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <time.h>
#include <string.h>
#include <ctype.h>
#include <stdbool.h>
#include <unistd.h>
#include <math.h>
#include "ftd2xx.h"
#include "libft4222.h"

void FT_init(void);

FT_HANDLE ftHandle = NULL;
FT_STATUS ftStatus;
FT4222_STATUS ft4222Status;

GPIO_Dir gpioDir[4];


int main(){
    FT_init();
    while(1){
        BOOL value;
        if(FT4222_GPIO_Read(ftHandle, (GPIO_Port)GPIO_PORT3, &value) == FT4222_OK)
        {
                if(value == true)
                    printf("int pin high %d\n",value);
        }
    }
    FT4222_UnInitialize(ftHandle);
    FT_Close(ftHandle);
    return 0;
}

void FT_init(){
    ftStatus = FT_Open(0, &ftHandle);
    if (FT_OK != ftStatus)
    {
        // open failed
        printf("failed to open the device\n");
        return;
    }
    gpioDir[0] = GPIO_INPUT;
    gpioDir[1] = GPIO_INPUT;
    gpioDir[2] = GPIO_INPUT;
    gpioDir[3] = GPIO_INPUT;
    ft4222Status =  FT4222_GPIO_Init(ftHandle, gpioDir);
    //disable suspend out , enable gpio 2
    if(ft4222Status != FT4222_OK){
        printf("GPIO init failed ftstatus = %d\n",ft4222Status);
    }
    FT4222_SetSuspendOut(ftHandle, false);
    //disable interrupt , enable gpio 3
    if(ft4222Status != FT4222_OK){
        printf("GPIO init failed");
    }
    FT4222_SetWakeUpInterrupt(ftHandle, false);
    //FT4222_GPIO_Write(ftHandle, GPIO_PORT3, 1);
    if(ft4222Status != FT4222_OK){
        printf("GPIO init failed");
    }

}