// i8088W_PWMStart.cpp : Defines the entry point for the console application.
//

/* Using pac_i8088W.dll on XPAC-8000 series. */

// This demo shows how to send PWM output normally.
// Using pac_i8088W_PWMStart to achieve this goal.

#include "stdafx.h"
#include <stdio.h>
#include "pac_i8088W.h"
#pragma comment(lib,"pac_i8088W.lib")

static int slotIndex=-1;

int main(int argc, char* argv[])
{
	//Declaration and default value assignment
	int slot = 1;
	int channel = 0;
	const unsigned long freq = 1000;
	const unsigned int dutyCycle = 50;
	int countMode = 0;  //1: Continuos ;0: Burst count
	unsigned int burstCount = 1000;


	for(slot=0;slot<8;slot++)
	{
		//1. init the I-8088W module
		if(pac_i8088W_Init(slot)==0)
		{
			slotIndex=slot;			
			break;
		}
	}	


	if(slotIndex==-1)
	{
		printf("There is no i8088W at Backplane\n");
		getchar();
		return -1;
	}
	else
	{
		printf("There is an i8088W at slot %d\n",slotIndex);
	}	
	
		
		
	for(channel=0;channel<8;channel++)
	{

		//2. set the frequency and duty cycle. 
		//(note: the possible value of duty cycle is decided by frequency.
		//       this is because PWM output is synthesized by 1 us pulse.
		pac_i8088W_SetPWMDuty(slotIndex, channel, freq, dutyCycle);
		
		//3. set count mode. 
		//(continuous mode outputs forever; burst count mode outputs only specified number of counts.)
		pac_i8088W_SetPWMCountMode(slotIndex, channel, countMode); //1: Continuos ;0: Burst count

		//4. set the number of count for burst count mode
		pac_i8088W_SetBurstCount(slotIndex, channel, burstCount);

		//5. start PWM output
		pac_i8088W_PWM_Start(slotIndex, channel);

		printf("\n\n");
		printf("In the slot: %d, and in the channel: %d\n", slotIndex, channel);
		printf("frequency= %u, duty cycle= %u, burst count=%d\n", freq, dutyCycle, burstCount);
		printf("PWM start!\n");
	}
	
	getchar();

	return 0;
}