AD转换结果控制直流电机
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2012-07-04
09:55:09
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#include <fcntl.h>
#include <string.h>
#include <sys/ioctl.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <fcntl.h>
#include "s3c2410-adc.h"
#define ADC_DEV "/dev/adc/0raw"
static int adc_fd = -1;
#define ADC_DEV "/dev/adc/0raw"
#define DCM_IOCTRL_SETPWM (0x10)
#define DCM_TCNTB0 (16384)
static int init_ADdevice(void)
{
if((adc_fd=open(ADC_DEV, O_RDWR))<0){
printf("Error opening %s adc device", ADC_DEV);
return -1;
}
}
static int GetADresult(int channel)
{
int PRESCALE=0XFF;
int data=ADC_WRITE(channel, PRESCALE);
write(adc_fd, &data, sizeof(data));
read(adc_fd, &data, sizeof(data));
return data;
}
static int stop=0;
static void* comMonitor(void* data)
{
getchar();
stop=1;
return NULL;
}
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