Specifications

Appendix A

S-function C-code

A.1 Analog In ﬁle

Analog input S-function for:

United Electronic Industries

PowerDAQ board type: PD2-MF-16-500/16H

Input Fifo size: 1024 samples

CL FIFO Size: 256 entries

Output Fifo size: 2048 samples

Mfg. date: 01-JAN-2003

Cal. date: 21-NOV-2003

Firmware type: MFx rev: 3.31/30819

#define S_FUNCTION_NAME uei_pd2mf_ai #define S_FUNCTION_LEVEL 2

#include "simstruc.h" #include <math.h>

#define NPARAMS 6 #define BoardID ssGetSFcnParam(S,0) #define ChannelList

ssGetSFcnParam(S,1) #define Range ssGetSFcnParam(S,2) #define GainSet

ssGetSFcnParam(S,3) #define SlowBit ssGetSFcnParam(S,4) #define AcquiDelay

ssGetSFcnParam(S,5)

#ifndef MATLAB_MEX_FILE #include <stdio.h> #include <stdlib.h> #include <stdint.h>

#include <fcntl.h> #include <sys/io.h> #include <sys/mman.h> #include <sys/types.h>

#include <sys/time.h> #include <unistd.h> #include "win_sdk_types.h" #include "rtai.h"

#include "rtai_sched.h" #include "powerdaq.h" #include "powerdaq32.h" #endif

int i;

#ifndef MATLAB_MEX_FILE

static PWRDAQ_PCI_CONFIG pciConfig;

static DWORD RangeTypes;

int j;

int retVal = 0;

int board; // board number to be used for the AI operation

static int Handle; // board Handle

void* bar0Address;

int mem_fd;

unsigned long aiCfg;

int scanSize;

int range;

static double BitWeight;

static double Displacement;

static int Gain;

static int Delay;

//FUNCTIONS

#define CHAN(c) ((c) & 0x3f)

#define GAIN(g) (((g) & 0x3) << 6)