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| //STC12C5A60S2 @12M晶振
#include <STC12C5A60S2.H>
#include <intrins.h>
sbit R1 = P0 ^ 0;
sbit G1 = P0 ^ 1;
sbit B1 = P0 ^ 2;
sbit R2 = P0 ^ 3;
sbit G2 = P0 ^ 4;
sbit B2 = P0 ^ 5;
sbit IA = P2 ^ 7; //行控制线A
sbit IB = P2 ^ 6; //行控制线B
sbit IC = P2 ^ 5; //行控制线C
sbit ID = P2 ^ 4; //行控制线D
sbit CK = P2 ^ 2; //时钟
sbit LS = P2 ^ 1; //锁存
sbit OE = P2 ^ 0; //输出，低电平有效
#define SCAN(X) IA=(X)&1; IB=(X)&2; IC=(X)&4; ID=(X)&8;
unsigned short ms = 0;
unsigned short sec = 0;
void Delay100us() //@12.000MHz
{
unsigned char i, j;
_nop_();
_nop_();
i = 2;
j = 38;
do
{
while (--j);
} while (--i);
}
void SendRGB(int s)
{
unsigned int i;
unsigned int j;
unsigned int color;
//手上的屏 译码器是 ICN74HC138 为 LED 显示屏行选专用译码电路，不能应用于静态译码电路，
//译码器的输入 A0 必须为动态信号，并且在 50ms 内必须有 0→1 的状态出现，
//否则内部译码电路处于关闭状态，并关闭所有输出 Pin.
for(i = 0; i < 16; i++) //扫描行数
{
SCAN(i); //选择行
// 写入缓存
color = s % 7 + 1;
for(j = 0; j <= s % 64; j++) // [0 ~ 63] 右闭区间等于64
{
R1 = color & 1;
G1 = color & 2;
B1 = color & 4;
R2 = G1;
G2 = B1;
B2 = R1;
CK=1;
CK=0;
}
// 清除缓存
for(; j < 64; j++) // [0 ~ 64) 右开区间等于64
{
R1=G1=B1=R2=G2=B2=0;
CK=1;
CK=0;
}
//锁存
LS=1;
LS=0;
//显示开
OE=0;
Delay100us();
OE=1;
}
}
void Timer0Init(void) //1毫秒@12.000MHz
{
AUXR |= 0x80; //定时器时钟1T模式
TMOD &= 0xF0; //设置定时器模式
TL0 = 0x20; //设置定时初始值
TH0 = 0xD1; //设置定时初始值
TF0 = 0; //清除TF0标志
TR0 = 1; //定时器0开始计时
ET0 = 1; //定时器0中断允许
EA = 1; //开启全局中断
}
int main()
{
Timer0Init();
while(1)
{
SendRGB(sec);
}
}
void timer0 (void) interrupt 1
{
ms++;
if(ms >=1000)
{
sec++;
ms = 0;
}
}
|
