main.c

CCS编译器下PIC16F887使用示例

#include "F:\sunzhonghai\ALLWAY\code887\code887+v2\main.h"
//  #include <math.h>
//  #include <string.h>

int16 cme500ms = 0;
unsigned char 			ctime0_count = 0;
#define LF_High			set_pwm1_duty(7);
#define LF_Low			set_pwm1_duty(20);

void Lf_putout(unsigned char HL,unsigned char times);
void Lf_Send(int16 Lf_data);
#ZERO_RAM
#int_RTCC
void  RTCC_isr(void)			//0.5ms
{
	ctime0_count++;
	if(ctime0_count>250)
	{
		ctime0_count = 0;
	}
	cme500ms++;
	if(cme500ms>500)
	{
		cme500ms = 0;
		output_high(PIN_A4);
	}
	else if(cme500ms>250)
	{
		output_low(PIN_A4);
	}
}

#int_TBE
void  TBE_isr(void) 
{

}

#int_RDA
void  RDA_isr(void) 
{

}



void main()
{

   setup_adc_ports(NO_ANALOGS|VSS_VDD);
   setup_adc(ADC_OFF);
   setup_spi(SPI_SS_DISABLED);
   setup_timer_0(RTCC_INTERNAL|RTCC_DIV_4);
   setup_timer_1(T1_DISABLED);
   setup_timer_2(T2_DIV_BY_1,15,1);
   //setup_timer_2(T2_DIV_BY_1, 127, 1);
   setup_ccp1(CCP_PWM);//,CCP_PWM_HALF_BRIDGE);
   set_pwm1_duty(7);
   setup_comparator(NC_NC_NC_NC);// This device COMP currently not supported by the PICWizard
   enable_interrupts(INT_RTCC);
//   enable_interrupts(INT_TBE);
//   enable_interrupts(INT_RDA);
   enable_interrupts(GLOBAL);
   setup_oscillator(OSC_8MHZ);
   // TODO: USER CODE!!
//	TRISA = 0;
output_low(PIN_A4);
output_high(PIN_A4);
output_low(PIN_A4);
output_high(PIN_A4);
	while(1)
	{
		restart_wdt();
		if(ctime0_count>200)
		{
			Lf_Send(0xf05a);
		}
	}
}

void Lf_Send(int16 Lf_data)
{
	int16 wlf_data,i;
	wlf_data = Lf_data;
	Lf_putout(1,12);		//TSTAB(AFE 稳定) = TAGC+TPAGC   6ms
	Lf_putout(0,1);		//TGAP(间隔脉冲)   0.5ms
	Lf_putout(1,9);		//t ≥ TOEH(验收滤波器高电平时间)   4.5ms>4ms
	Lf_putout(0,9);		//t ≥ TOEL(验收滤波器低电平时间)   4.5ms>4ms
						//TOEH+TOEL≤TOET				   4.5ms+4.5ms<10ms
	for(i=0;i<16;i++)
	{
		if(wlf_data&(0x8000>>i))
		{
			Lf_putout(1,1); //125k*0.5ms
		}
		else
		{
			Lf_putout(0,1); //0k*0.5ms
		}
	}
	LF_Low;	
}

void Lf_putout(unsigned char HL,unsigned char times)    //times*0.5ms
{
	unsigned char cHigh_Low;
	unsigned char ctime;
	cHigh_Low = HL;
	ctime = times;
	if(cHigh_Low)
	{
		LF_High;
	}
	else
	{
		LF_Low;
	}
	set_timer0(0);
	ctime0_count = 0;
	while(ctime0_count<times);
}