sbit P1_0= P1^0;
#include"tên header file"
#include< tên header file>
#define led1 P1_0
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void inter_4(void) interrupt 4 using 2{
// làm gì thì làm ở đây
}
void delay( unsigned char time){
//code viết ở đây
}
void main(void){
// viết mã ở đây
}
// liệt kê header file
#inlucde"tên header file"
....................
// các marco
#define led1 P1_0
...........
// các hàm ngắt
void inter_1 interrupt 1 using 3{
}
..........
// các hàm bình thường
void delay( unsigned char time){
///
}
..............
// chương trình chính
void main(void){
}
*-------------------------------------------------------------------------- AT89X51.H Header file for the low voltage Flash Atmel AT89C51 and AT89LV51. Copyright (c) 1988-2002 Keil Elektronik GmbH and Keil Software, Inc. All rights reserved. --------------------------------------------------------------------------*/
#ifndef __AT89X51_H__ #define __AT89X51_H__ /*------------------------------------------------ Byte Registers ; Định nghĩa các thành ghi ở các địa chỉ trong RAM ------------------------------------------------*/ sfr P0 = 0x80; sfr SP = 0x81; sfr DPL = 0x82; sfr DPH = 0x83; sfr PCON = 0x87; sfr TCON = 0x88; sfr TMOD = 0x89; sfr TL0 = 0x8A; sfr TL1 = 0x8B; sfr TH0 = 0x8C; sfr TH1 = 0x8D; sfr P1 = 0x90; sfr SCON = 0x98; sfr SBUF = 0x99; sfr P2 = 0xA0; sfr IE = 0xA8; sfr P3 = 0xB0; sfr IP = 0xB8; sfr PSW = 0xD0; sfr ACC = 0xE0; sfr B = 0xF0; /*------------------------------------------------ P0 Bit Registers ; Định nghĩa các cổng của Port 0 vì port này là thanh ghi 8 bít định được địa chỉ trực tiếp ------------------------------------------------*/ sbit P0_0 = 0x80; sbit P0_1 = 0x81; sbit P0_2 = 0x82; sbit P0_3 = 0x83; sbit P0_4 = 0x84; sbit P0_5 = 0x85; sbit P0_6 = 0x86; sbit P0_7 = 0x87; /*------------------------------------------------ PCON Bit Values ------------------------------------------------*/ #define IDL_ 0x01 #define STOP_ 0x02 #define PD_ 0x02 /* Alternate definition */ #define GF0_ 0x04 #define GF1_ 0x08 #define SMOD_ 0x80 /*------------------------------------------------ TCON Bit Registers ------------------------------------------------*/ sbit IT0 = 0x88; sbit IE0 = 0x89; sbit IT1 = 0x8A; sbit IE1 = 0x8B; sbit TR0 = 0x8C; sbit TF0 = 0x8D; sbit TR1 = 0x8E; sbit TF1 = 0x8F; /*------------------------------------------------ TMOD Bit Values ------------------------------------------------*/ #define T0_M0_ 0x01 #define T0_M1_ 0x02 #define T0_CT_ 0x04 #define T0_GATE_ 0x08 #define T1_M0_ 0x10 #define T1_M1_ 0x20 #define T1_CT_ 0x40 #define T1_GATE_ 0x80 #define T1_MASK_ 0xF0 #define T0_MASK_ 0x0F /*------------------------------------------------ P1 Bit Registers ------------------------------------------------*/ sbit P1_0 = 0x90; sbit P1_1 = 0x91; sbit P1_2 = 0x92; sbit P1_3 = 0x93; sbit P1_4 = 0x94; sbit P1_5 = 0x95; sbit P1_6 = 0x96; sbit P1_7 = 0x97; /*------------------------------------------------ SCON Bit Registers ------------------------------------------------*/ sbit RI = 0x98; sbit TI = 0x99; sbit RB8 = 0x9A; sbit TB8 = 0x9B; sbit REN = 0x9C; sbit SM2 = 0x9D; sbit SM1 = 0x9E; sbit SM0 = 0x9F; /*------------------------------------------------ P2 Bit Registers ------------------------------------------------*/ sbit P2_0 = 0xA0; sbit P2_1 = 0xA1; sbit P2_2 = 0xA2; sbit P2_3 = 0xA3; sbit P2_4 = 0xA4; sbit P2_5 = 0xA5; sbit P2_6 = 0xA6; sbit P2_7 = 0xA7; /*------------------------------------------------ IE Bit Registers ------------------------------------------------*/ sbit EX0 = 0xA8; /* 1=Enable External interrupt 0 */ sbit ET0 = 0xA9; /* 1=Enable Timer 0 interrupt */ sbit EX1 = 0xAA; /* 1=Enable External interrupt 1 */ sbit ET1 = 0xAB; /* 1=Enable Timer 1 interrupt */ sbit ES = 0xAC; /* 1=Enable Serial port interrupt */ sbit ET2 = 0xAD; /* 1=Enable Timer 2 interrupt */ sbit EA = 0xAF; /* 0=Disable all interrupts */ /*------------------------------------------------ P3 Bit Registers (Mnemonics & Ports) ------------------------------------------------*/ sbit P3_0 = 0xB0; sbit P3_1 = 0xB1; sbit P3_2 = 0xB2; sbit P3_3 = 0xB3; sbit P3_4 = 0xB4; sbit P3_5 = 0xB5; sbit P3_6 = 0xB6; sbit P3_7 = 0xB7; sbit RXD = 0xB0; /* Serial data input */ sbit TXD = 0xB1; /* Serial data output */ sbit INT0 = 0xB2; /* External interrupt 0 */ sbit INT1 = 0xB3; /* External interrupt 1 */ sbit T0 = 0xB4; /* Timer 0 external input */ sbit T1 = 0xB5; /* Timer 1 external input */ sbit WR = 0xB6; /* External data memory write strobe */ sbit RD = 0xB7; /* External data memory read strobe */ /*------------------------------------------------ IP Bit Registers ------------------------------------------------*/ sbit PX0 = 0xB8; sbit PT0 = 0xB9; sbit PX1 = 0xBA; sbit PT1 = 0xBB; sbit PS = 0xBC; sbit PT2 = 0xBD; /*------------------------------------------------ PSW Bit Registers ------------------------------------------------*/ sbit P = 0xD0; sbit FL = 0xD1; sbit OV = 0xD2; sbit RS0 = 0xD3; sbit RS1 = 0xD4; sbit F0 = 0xD5; sbit AC = 0xD6; sbit CY = 0xD7; /*------------------------------------------------ Interrupt Vectors: Interrupt Address = (Number * 8) + 3 ------------------------------------------------*/ #define IE0_VECTOR 0 /* 0x03 External Interrupt 0 */ #define TF0_VECTOR 1 /* 0x0B Timer 0 */ #define IE1_VECTOR 2 /* 0x13 External Interrupt 1 */ #define TF1_VECTOR 3 /* 0x1B Timer 1 */ #define SIO_VECTOR 4 /* 0x23 Serial port */ #endif
/*------------------------------------------------ Interrupt Vectors: Interrupt Address = (Number * 8) + 3 ------------------------------------------------*/ #define IE0_VECTOR 0 /* 0x03 External Interrupt 0 */ #define TF0_VECTOR 1 /* 0x0B Timer 0 */ #define IE1_VECTOR 2 /* 0x13 External Interrupt 1 */ #define TF1_VECTOR 3 /* 0x1B Timer 1 */ #define SIO_VECTOR 4 /* 0x23 Serial port */
void tềnham(void)
void inter0(void) interrupt 0 using 1{
} // ngắt ngoài 0, dùng bank 1
void inter1(void) interrupt 1 using 1{
}
void inter2(void) interrupt 2 using 1{
}
EA = 1;// cho phép dùng ngắt ES = 1;// dùng ngắt nối tiếp
"thaithutrang" có lẻ nhớ nhầm cờ ngắt, chỉ khi vào trình phục ngắt, sau khi thực thi thì cờ ngắt được tự động xóa rồi thoát!
Tìm hiểu thêm về kien_tran
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