timer.h

利用89s51去寫結構化keil-C 4x4鍵盤掃描+LCD螢幕顯示 HW01:四則運算+時鍾顯示 HW02:頻率偵測器 ps.鍵盤掃描不是利用延遲作彈跳(推薦)

#ifndef __TIMER_H__
#define __TIMER_H__

#include "AT89S51.h"
#include <stdio.h>
#include <intrins.h>
#include "datatype.h"

/*///////////////////////////////////////////////////////////////////////////
////  TMOD
/                Timer1              /               Timer0
/    (b7)    (b6)   (b5)  (b4)   /   (b3)    (b2)   (b1)  (b0)
/    Gate    C/T    M1    M0    /  Gate    C/T    M1    M0

/ Gate = 1: INT and TR0=1, Timer active.
/ Gate = 0: TR0=1, Timer active.
/ C/T=1: as Counter.
/ C/T=0: as Timer.
/ M1/M0
/  0    0  :Mode 0: as 13bit Timer/Counter.
/  0    1  :Mode 1: as 16bit Timer/Counter. 
/  1    0  :Mode 2: as 8bit Timer/Counter, auto-reload.
/  1    1  :Mode 3: as two 8bit Timer/Counter.
//////////////////////////////////////////////////////////////////////////*/

#define XTAL_KHz        	11059.2
#define UART_9600       	(256-(int)(1*XTAL_KHz*1000/384/9600)) 
#define UART_19200      	(256-(int)(1*XTAL_KHz*1000/384/19200)) 
#define UART_38400      	(256-(int)(1*XTAL_KHz*1000/384/38400)) 

#define TM0_M0_COUNT 	5000
#define TM0_M0_TH		((8192-TM0_M0_COUNT)/32)
#define TM0_M0_TL		((8192-TM0_M0_COUNT)%32)

#define TM0_M1_COUNT 	50000
#define TM0_M1_TH		((65536-TM0_M1_COUNT)/256)
#define TM0_M1_TL		((65536-TM0_M1_COUNT)%256)

#define TM0_M2_1s		4246//4225//5000
#define TM0_M2_COUNT 	217
#define TM0_M2_TH		(256-TM0_M2_COUNT)
#define TM0_M2_TL		(256-TM0_M2_COUNT)

#define TM1_M0_COUNT 	5000
#define TM1_M0_TH		((8192-TM1_M0_COUNT)/32)
#define TM1_M0_TL		((8192-TM1_M0_COUNT)%32)

#define TM1_M1_COUNT 	50000
#define TM1_M1_TH		((65536-TM1_M1_COUNT)/256)
#define TM1_M1_TL		((65536-TM1_M1_COUNT)%256)

#define TM1_M2_1s		4900//5000
#define TM1_M2_COUNT 	217
#define TM1_M2_TH		(256-TM1_M2_COUNT)
#define TM1_M2_TL		(256-TM1_M2_COUNT)

///////////////////////////////////////////////////////////////////////////
//Timer.c declaration
void fnTM_Timer0ISREn(void);
void fnTM_Timer0M2Start(void);


void fnTM_Counter1ISREn(void);
void fnTM_Counter1M1Start(void);

///////////////////////////////////////////////////////////////////////////
//Variable declaration


#endif//__TIMER_H__