Timer0_test.rar_STC定时器

/*---------------------------------------------------------------------*/ /* --- STC MCU Limited ------------------------------------------------*/ /* --- STC15F4K60S4 系列 定时器0的16位自动重装载模式举例---------------*/ /* --- Mobile: (86)13922805190 -------------- -------------------------*/ /* --- Fax: 86-755-82905966 -------------------------------------------*/ /* --- Tel: 86-755-82948412 -------------------------------------------*/ /* --- Web: www.STCMCU.com --------------------------------------------*/ /*---------------------------------------------------------------------*/ //假定测试芯片的工作频率为18.432MHz #include "reg51.h" #include <intrins.h> typedef unsigned char BYTE; typedef unsigned int WORD; #define uchar unsigned char #define uint unsigned int #define ulint unsigned long int #define NOP _nop_() //RGB屏幕颜色IO口定义 低电平有效 sbit Pwm_G = P1 ^ 1; //绿灯使能脚 sbit Pwm_R = P1 ^ 0; //红灯使能脚 sbit Pwm_B = P3 ^ 7; //蓝灯使能脚 //RGB屏幕COM口定义 sbit COM1 = P2 ^ 0; sbit COM2 = P2 ^ 1; sbit COM3 = P2 ^ 2; sbit COM4 = P2 ^ 3; sbit COM5 = P2 ^ 4; sbit COM6 = P2 ^ 5; sbit COM7 = P2 ^ 6; sbit COM8 = P2 ^ 7; //穿行输入控制端口 //sbit RCLK = P1 ^ 2; //存储寄存器输入时钟 //sbit SER = P1 ^ 3; //串行数据输入 //sbit SCLK = P1 ^ 4; //位移寄存器输入时钟 sbit SHCP=P1^4; //11脚SHCP 位移时钟 sbit STCP=P1^2; //12脚STCP 锁存时钟 sbit DATA=P1^3; //数据输入 #define FOSC 18432000L #define T1MS (65536-FOSC/1000) //1T模式 //#define T1MS (65536-FOSC/12/1000) //12T模式 sfr AUXR = 0x8e; //Auxiliary register sbit P07 = P0^7; /*******************************************************************************************/ //初始化 void Initi_IO() { COM1 = 0; COM2 = 0; COM3 = 0; COM4 = 0; COM5 = 0; COM6 = 0; COM7 = 0; COM8 = 0; //com口初始化 Pwm_R= 1; Pwm_G= 1; Pwm_B= 1; //3色初始化 } /*******************************************************************************************/ //COM口全部打开，即全屏显示 void COM_OPEN() { COM1 = 1; COM2 = 1; COM3 = 1; COM4 = 1; COM5 = 1; COM6 = 1; COM7 = 1; COM8 = 1; } /*******************************************************************************************/ //数据串行输入 void serial_input(uchar dat) { uint m; for(m=0;m<8;m++) { SHCP=0; if(dat & 0x80) DATA=1; else DATA=0; SHCP=1; NOP; NOP; SHCP=0; NOP; NOP; dat=dat<<1; } } /*******************************************************************************************/ //并行输出 void serial_output() { STCP=1; NOP; NOP; STCP=0; } /*******************************************************************************************/ /* Timer0 interrupt routine */ void tm0_isr() interrupt 1 using 1 { int i=0 , m=0; m++; if(m==1000) { i++; if(i==1) COM1 = !COM1; if(i==2) COM2 = !COM2; if(i==3) COM3 = !COM3; if(i==4) COM4 = !COM4; if(i==5) COM5 = !COM5; if(i==6) COM6 = !COM6; if(i==7) COM7 = !COM7; if(i==8) COM8 = !COM8; if(i==9) { i=0; m=0; Initi_IO(); } } } /*******************************************************************************************/ /* main program */ void main() { AUXR |= 0x80; //定时器0为1T模式 // AUXR &= 0x7f; //定时器0为12T模式 TMOD = 0x00; //设置定时器为模式0(16位自动重装载) TL0 = T1MS; //初始化计时值 TH0 = T1MS >> 8; TR0 = 1; //定时器0开始计时 ET0 = 1; //使能定时器0中断 EA = 1; Initi_IO(); Pwm_B=0; Pwm_G=0; Pwm_R=0; COM_OPEN(); while(1) { serial_input(0x00); serial_output(); } }