drv_timer1.c

CC1000 Rf modem C codes for philips sLpc213X ARM MCU.

#include "config_GD61.h"
#include "include_GD61.h"
#include <stdio.h>
#include <math.h>

/////////////////////////////////////////////////////////////////////////////
void __irq IRQ_Timer1Serving (void);
void Timer1Initialize(void);

void TimeElapseStart(void);
void TimeElapseStop(char *titlePt,uint32 usTimeFilter);

void DelayUS_(uint32 dly);
/*
/////////////////////////////////////////////////////////////////////////////
void __irq IRQ_Timer1Serving(void)
{
//do something here.
	T1IR 		= 0x01;		// 清除中断标志
	VICVectAddr = 0x00;		// 通知VIC中断处理结束
}

/////////////////////////////////////////////////////////////////////////////
void Timer1Initialize(void)
{
//定时器0初始化
	T1TC   = 0;					//set timer1 initialization value
	T1PR   = 0;					//pclk output to timer1 directly
	T1MCR  = 0x03;				// 设置T1MR0匹配后复位T1TC，并产生中断标志
	T1MR0  = LPC_FPCLK/1000;	// 1/1000秒钟定时
	T1TCR  = 0x01;				// 启动定时器

//设置定时器0中断IRQ
	VICVectCntl8 = 0x20|INT_TIMER1;				//enable the int vector and assign the priority of int.
	VICVectAddr8 = (uint32)IRQ_Timer1Serving;	//assign the address of int handler.
	VICIntEnable = 1<<INT_TIMER1;				//

}
*/
/////////////////////////////////////////////////////////////////////////////
void TimeElapseStart(void)
{
//定时器0初始化
	T1TC   = 0;				//set timer1 initialization value
	T1PR   = 0;				//pclk output to timer1 directly
	T1TCR  = 0x01;			/* 启动定时器 */
}

/////////////////////////////////////////////////////////////////////////////
void TimeElapseStop(char *titlePt,uint32 usTimeFilter)
{
char dbuffer[100];
uint32 buff;

	T1TCR = 0x00;		/* stop timer1*/
	buff  = T1TC;
	buff  = buff*100/1106 + buff*8/1106/1106;  //11.0592

	if(buff>usTimeFilter){
		sprintf(dbuffer,"%s elapsed time: %d us = %d ms",titlePt,buff,((buff+500)/1000));
		Uart0SendString(dbuffer);
	}
}

/////////////////////////////////////////////////////////////////////////////
/*
void DelayUS_(uint32 dly)
{
uint32 us_buff;

// 定时器0初始化
	IRQDisable();
	T1TC   = 0;			//set timer1 initialization value
	T1PR   = 0;			//pclk output to timer1 directly
	T1TCR  = 0x01;		//启动定时器
	IRQEnable();		// 使能IRQ中断 
	
// test timer counter.
	do{
		us_buff = T1TC;
		us_buff = us_buff*100/1106 + us_buff*8/1106/1106;  //11.0592
	}while(us_buff<dly);
}
*/
////////////////////////////////////////////////////////////////////////////
// end of file //