Subversion Repositories gppd

#include "systemc.h"

#include <iostream>

#include <fstream>

#define textLength 40 //The length of the bit-stream in the stimuli file

/** This function read in a text file into a local variable and export it

    in array format */

int* ReadFileData()

{

        int *values = new int[textLength];

        int numValuesRead = 0;

        // open the file

        FILE* pFile = fopen("impulse_response.dat","r+t");

        while( ! feof( pFile ) )

        {

                int currentInt = 0;

                fscanf( pFile, "%d", &currentInt);

                values[numValuesRead] = currentInt ;

                numValuesRead++;

        }

        fclose(pFile);

        return values;

        delete pFile;

}

/** Read in the text file using the developed previous function

    and store the content into the arry called data */

static int *data = ReadFileData();

/** This module/block start reading the data from the array data

    when the clear signal is set to zero and at each rising edge of the clock */

SC_MODULE(stimuli) {

        // Input and Output Ports

        sc_in_clk       CLK;

        sc_in<bool> CLR;

        sc_out<double > firIN;

    // Internal variable

    unsigned int count;

    // Constructor

    SC_CTOR(stimuli)

    {

        SC_METHOD(bitstream);

            sensitive << CLR << CLK.pos();

    }

    // Process

    void bitstream()

    {

        if (CLR == true)

        {

            count = 0;

            firIN.write(0);

        }

        else

        {

            if (CLK.posedge())

            {

                if (count < textLength)

                {

                    firIN.write(data[count]);

                    count = count + 1;

                }

                else

                {

                    count = 0;

                }

            }

        }

    }

};