请交下师傅们 我写的这个代码164发送函数 放到主函数了就不能正常显示了 但是在中断函数里是可以正常显示秒表的 谢谢
单片机源程序如下:
/*
STC12C5406AD 12M CRYSTAL
Relay P22
Display1 P25
Display2 P24
DATA_164 P23
CLK_164 P21
MR_164 P20
K1 P32
K2 P33
K3 P34
LED_Flash P37
*/
#include "STC12C5630AD.H"
#include <intrins.h>
#define uchar unsigned char
#define uint unsigned int
/*******************************************************************/
sbit MR_164 = P2^0; //Pin9
sbit CLK_164 = P2^1; //Pin8 clk
sbit DATA_164 = P2^3;
sbit Relay = P2^2; //relay
sbit GRID1 = P2^4;
sbit GRID2 = P2^5;
sbit Key_start = P3^2;
sbit Key_Set = P3^3;
sbit Key_Down = P3^4;
sbit LED_Flash = P3^7;
bit led_flag;
/*******************************************************************/
const unsigned char code Led_data[] = {0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xff,0xfb};
unsigned int nCnt;
unsigned char sec=24,Cnt[2]={0xff,0xff};
/******************************************************************
/*****************************************************************/
void delayms (uint ms)
{
unsigned int i;
while( ms -- )
{
for (i = 0; i < 600; i ++);//600 1T 125 12T
}
}
/******************************************************************
/*****************************************************************/
void IO_Mode_Setup (void)
{
P2M1 = 0x00; //0000 0000
P2M0 = 0x00;
P3M1 = 0x00; //0000 0000
P3M0 = 0x00;
}
/******************************************************************
/*****************************************************************/
void Timer0_init(void)
{
AUXR &= 0x7f;//12t
TMOD &= 0xf0;
TMOD |= 0x01;//mode 1 16bit
TH0 = 0xf8;
TL0 = 0x30;
TR0 = 1;
TF0 = 0;
}
/******************************************************************
/*****************************************************************/
void PORT_init(void)
{
;
}
/******************************************************************
/*****************************************************************/
void SendByteData_164(unsigned char temp)
{
unsigned char i;
for (i = 0; i < 8; i++ )
{
if (temp & 0x80 ){//′ó¸ßλ¿aê¼·￠Ëí
DATA_164 = 1;
}
else{
DATA_164 = 0;
}
CLK_164 = 0;
CLK_164 = 1;
temp = temp << 1;
}
CLK_164 = 0; //êí·Å×üÏß
DATA_164 = 0;
}
void Timer0_isr (void) interrupt 1
{
static unsigned int t=0;
TH0 = 0xf8; //12 2ms
TL0 = 0x30;
led_flag = ~led_flag;
GRID1 = 1;
GRID2 = 1;
if(sec < 10){
Cnt[0] = sec%10;
Cnt[1] = 10;
}else if(sec < 100){
Cnt[1] = sec/10;
Cnt[0] = sec%10;
}else{
sec = 0;
}
SendByteData_164(Led_data[Cnt[led_flag]]);
if(led_flag )
{
GRID1 = 0;
}else {
GRID2 = 0;
}
if(t++ >= 500)//2ms*500=1000ms
{
sec++;
LED_Flash = !LED_Flash;
t = 0;
if(sec >= 100)
{
sec = 0;
}
}
}
/******************************************************************
/*****************************************************************/
void main (void)
{
IO_Mode_Setup ();
Timer0_init();
SendByteData_164(Led_data[0]);
MR_164 = 1; //164 pin9 master resert
// GRID1 = 0; //¿aÆôλ1
// GRID2 = 0;
Relay = 0; //S8550 11Ø±Õ 0 ¿aÆô
P3 &= 0x80;
LED_Flash = 0;
ET0 = 1;
EA = 1;
while(1)
{
// SendByteData_164(Led_data[Cnt[led_flag]]);
//这个函数放到这里 秒表就显示两个8.8. 不能正常显示走动走时了 但是放到中断函数里是正常显示秒表的
}//end while(1)
}//end main()
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