/*
Demo for 8080 (Up counter mode)

Software:
    Compiler: BC++ 3.1
    Compile mode: large
    Project: Up.c
             8081L.Lib
             8000L.Lib

Hardware: I-8000 MCU + 8081

Channel configurations:
    Xor=0 for Low Actived (signal from High to Low ==> change count)
    Low pass filters disabled
    all channel are set to up counter
    
Wiring:
    Ch0=A0=Up counter
    Ch1=B0=Up counter
    Ch2=A1=Up counter
    Ch3=B1=Up counter
    Ch4=A2=Up counter
    Ch5=B2=Up counter
    Ch6=A3=Up counter
    Ch7=B3=Up counter
*/

/*          
[2005,Mar,08] by Kevin
    Use 8081 lib version 1.0.0
*/

#include "..\..\..\..\lib\8000E.h"
#include "..\..\..\..\lib\8081.h"

void main(void)
{
    int i,slot,channel,iRet;
    unsigned long T1,T2,T3;
    unsigned long Counter;
    
    char sTemp[20];

    InitLib();
    
    i8081_GetLibDate(sTemp);
    Print("**************************************\n\r");
    Print("   8081 demo (Up counter mode) \n\r");
    Print("    compiled [%s]               \n\r",__DATE__);
    Print("\n\r"); 
    Print("   Lib version %x\n\r",i8081_GetLibVersion());
	Print("   Lib dated %s\n\r",sTemp);
	  
    Print("**************************************\n\r");
    Print("Press 'c' to clear all counters.\n\r");
    Print("Press 'q' to quit.\n\r\n\r");
    
    Print("Slot number (0~7)=");
	Scanf("%d",&slot);
    iRet=i8081_Init(slot);
    if (iRet==(-1))
    {
		Print("Initiate 8081 on slot%d error!\n\r",slot);
		Print("  Cannot find 8081.");
	}
	else
	{
		Print("Initiate 8081 on slot%d ok.\n\r",slot);
		Print("\n\r");
	    Print("Firmware version = %d\n\r",i8081_GetFirmwareVersion(slot)); 
	    
        
        for (channel=0; channel<8; channel++)
        {
            i8081_SetXorRegister(slot,channel,0); // XOR=0 (Low Actived)
            i8081_SetChannelMode(slot,channel,1); // Up counter mode
                //mode 0: Pulse/Dir counter mode
                //     1: Up/Down counter mode
                //     2: A-B phase mode
                //     3: Stop counting
            
            i8081_SetSignalSource(slot,channel,0); // Isolated input    
            i8081_SetLowPassFilter_Status(slot,channel,1); // last argument enables/disables LPF
            i8081_SetLowPassFilter_Level(slot,1); //Set LPF width (micro seconds)
        }
        
        Print("Press any key to start.\n\r");
        Getch();
        
        //Clear all count at beginning.
        for (channel=0; channel<8; channel++)
        {
            i8081_ClrCnt(slot,channel);
        }
        
        T1=GetTimeTicks();
        T2=T1;
        for (;;)
        {
            T3=GetTimeTicks();
            if ((T3-T1) >=50) // Auto scan 8081 every 50 ms (one time one slot)
            {
                T1=T3;
                i8081_AutoScan();
            }
    
            if ((T3-T2) >=500) // Print Counter value every 500 ms
            {
                T2=T3;
                for(channel=0;channel<8;channel++)
                {
                    i8081_ReadCntUp(slot,channel,&Counter);
                    Print("Ch%d=%ld ",channel,Counter);
                }
                Print("\n\r");
            }
            
            if (Kbhit())
            {
                iRet=Getch();
                if(iRet=='q') //Press 'q' to quit the program.
                {
                    return;
                }
                else if(iRet=='c') //Press any key to clear counter 0.
                {
                    for(channel=0;channel<8;channel++)
                        i8081_ClrCnt(slot,channel);
                    Print("Clear all counters.\n\r");
                }
            }
        }
    }
}