FC_IO_Pulse Class Reference

Asynchronous pulse std_logic output. More...

Inheritance diagram for FC_IO_Pulse:

Public Member Functions
	FC_IO_Pulse (U32 inital=0x00000000)
void	Pulse (const U32 width, TimeUnits tu=TU_clk)

Detailed Description

Asynchronous pulse std_logic output.

Adds to interface:
<name> : out std_logic
where <name> is c++ object name.
Any number of instances are allowed.
The pulse value is logic not of the inital value
The pulse is asynchronous i.e. the funcion Pulse return immediately

// This example shows how to use FC_System_Timer, FC_System_EventManager and FC_IO_Pulse.
// Three timers are started. 
 
#include "fc_io.h"
#include "fc_system.h"
 
int main()
{
//% hw_begin
    FC_IO_Clk clk(100);
    FC_IO_Pulse p1;
    FC_IO_Pulse p2;
    FC_IO_Pulse p3(0b1);    // Inverted
    FC_System_Timer t1;
    FC_System_Timer t2;
    FC_System_Timer t3;
    FC_System_EventManager em;
//% hw_end
 
    enum EVENTS { Event1, Event2, Event3}; // Define events id
 
    t1.Start(2, TU_us, Event1);    // Event1 @ every 2 us
    t2.Start(4, TU_us, Event2);    // Event2 @ every 4 us
    t3.Start(6, TU_us, Event3);    // Event3 @ every 6 us
 
    for (;;)
    {   
        switch( em.GetEvent() ) {   // Wait for event
 
            case Event1:            // 50 Clk pulse
                p1.Pulse(50,TU_clk); 
            break;
 
            case Event2:            // 150 Clk pulse
                p2.Pulse(150,TU_clk);   
            break;
 
            case Event3:            // 150 Clk inverted pulse
                p3.Pulse(150,TU_clk);   
            break;
        }    
    }
}

This example will give the following result: