FC_IO_StreamMaster Class Reference

AXI4 Stream master. More...

Inheritance diagram for FC_IO_StreamMaster:

Public Member Functions
	FC_IO_StreamMaster (U32 width, int fifo_depth=1)
U32	Status ()
int	NumReady ()
	Number of that can be written to this stream.
void	Write (const U32 d)

Detailed Description

AXI4 Stream master.

Adds to interface:
<name>_Data : out std_logic_vector(width-1 downto 0)
<name>_Valid : out std_logic
<name>_Ready : in std_logic
where <name> is c++ object name.
Any number of instances are allowed.

// This example shows how to use the FC_IO_StreamMaster and FC_IO_StreamSlave classes.
// This application calculates the moving average on 10 consecutive samples 
// that is read from the stream slave. The result is streamed out to the stream master
 
#include "fc_io.h"
#include "fc_system.h"
 
int main()
{
    //% hw_begin
    FC_IO_Clk clk(100); 
    FC_IO_StreamMaster sm(32);
    FC_IO_StreamSlave ss(32);
    //% hw_end
 
    const int n_avg = 10;
    int buff[n_avg];
    for( int i=0; i<n_avg; i++ )
        buff[i] = 0;
    
    int ix = 0;
    int sum = 0;  
 
    for (;;)
    {   
        if( ss.NumValid() > 0 && sm.NumReady() > 0 ) {
            sum -= buff[ix];
            buff[ix] = ss.Read();
            sum += buff[ix];
            ix++;
            if(ix == n_avg)
                ix = 0;
            sm.Write(sum/n_avg);
        }
    }
}