#include "io430.h"
//定义Max7219端口
#define CLK_0 P2OUT |= BIT0;
#define CLK_1 P2OUT &= ~BIT0;
#define CS_0 P2OUT |= BIT1;
#define CS_1 P2OUT &= ~BIT1;
#define DIN_0 P2OUT |= BIT2;
#define DIN_1 P2OUT &= ~BIT2;
#define CPU_F ((double)8000000) //外部高频晶振8MHZ
#define delay_us(x) __delay_cycles((long)(CPU_F*(double)x/1000000.0))
#define delay_ms(x) __delay_cycles((long)(CPU_F*(double)x/1000.0))
//自定义数据结构，方便使用
#define uchar unsigned char
#define uint unsigned int
#define ulong unsigned long
void close_dog()
{
WDTCTL = WDTPW + WDTHOLD; //关闭看门狗
}
uchar const disp1[38][8]={
{0x3C,0x42,0x42,0x42,0x42,0x42,0x42,0x3C},//0
{0x10,0x18,0x14,0x10,0x10,0x10,0x10,0x10},//1
{0x7E,0x2,0x2,0x7E,0x40,0x40,0x40,0x7E},//2
{0x3E,0x2,0x2,0x3E,0x2,0x2,0x3E,0x0},//3
{0x8,0x18,0x28,0x48,0xFE,0x8,0x8,0x8},//4
{0x3C,0x20,0x20,0x3C,0x4,0x4,0x3C,0x0},//5
{0x3C,0x20,0x20,0x3C,0x24,0x24,0x3C,0x0},//6
{0x3E,0x22,0x4,0x8,0x8,0x8,0x8,0x8},//7
{0x0,0x3E,0x22,0x22,0x3E,0x22,0x22,0x3E},//8
{0x3E,0x22,0x22,0x3E,0x2,0x2,0x2,0x3E},//9
{0x8,0x14,0x22,0x3E,0x22,0x22,0x22,0x22},//A
{0x3C,0x22,0x22,0x3E,0x22,0x22,0x3C,0x0},//B
{0x3C,0x40,0x40,0x40,0x40,0x40,0x3C,0x0},//C
{0x7C,0x42,0x42,0x42,0x42,0x42,0x7C,0x0},//D
{0x7C,0x40,0x40,0x7C,0x40,0x40,0x40,0x7C},//E
{0x7C,0x40,0x40,0x7C,0x40,0x40,0x40,0x40},//F
{0x3C,0x40,0x40,0x40,0x40,0x44,0x44,0x3C},//G
{0x44,0x44,0x44,0x7C,0x44,0x44,0x44,0x44},//H
{0x7C,0x10,0x10,0x10,0x10,0x10,0x10,0x7C},//I
{0x3C,0x8,0x8,0x8,0x8,0x8,0x48,0x30},//J
{0x0,0x24,0x28,0x30,0x20,0x30,0x28,0x24},//K
{0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x7C},//L
{0x81,0xC3,0xA5,0x99,0x81,0x81,0x81,0x81},//M
{0x0,0x42,0x62,0x52,0x4A,0x46,0x42,0x0},//N
{0x3C,0x42,0x42,0x42,0x42,0x42,0x42,0x3C},//O
{0x3C,0x22,0x22,0x22,0x3C,0x20,0x20,0x20},//P
{0x1C,0x22,0x22,0x22,0x22,0x26,0x22,0x1D},//Q
{0x3C,0x22,0x22,0x22,0x3C,0x24,0x22,0x21},//R
{0x0,0x1E,0x20,0x20,0x3E,0x2,0x2,0x3C},//S
{0x0,0x3E,0x8,0x8,0x8,0x8,0x8,0x8},//T
{0x42,0x42,0x42,0x42,0x42,0x42,0x22,0x1C},//U
{0x42,0x42,0x42,0x42,0x42,0x42,0x24,0x18},//V
{0x0,0x49,0x49,0x49,0x49,0x2A,0x1C,0x0},//W
{0x0,0x41,0x22,0x14,0x8,0x14,0x22,0x41},//X
{0x41,0x22,0x14,0x8,0x8,0x8,0x8,0x8},//Y
{0x0,0x7F,0x2,0x4,0x8,0x10,0x20,0x7F},//Z
{0x8,0x7F,0x49,0x49,0x7F,0x8,0x8,0x8},//中
{0xFE,0xBA,0x92,0xBA,0x92,0x9A,0xBA,0xFE},//国
};
//--------------------------------------------
//功能：向MAX7219(U3)写入字节
//入口参数：DATA
//出口参数：无
//说明：
void Write_Max7219_byte(uchar DATA)
{
uchar i,temp;
for(i=8;i>=1;i--)
{
temp=DATA&0x80;
DATA=DATA<<1;
if(temp)
DIN_1;
if(!temp)
DIN_0;
CLK_0;
delay_ms(500);
CLK_1;
}
}
//-------------------------------------------
//功能：向MAX7219写入数据
//入口参数：address、dat
//出口参数：无
//说明：
void Write_Max7219(uchar address,uchar dat)
{
CS_0;
delay_ms(500);
Write_Max7219_byte(address); //写入地址，即数码管编号
delay_ms(500);
Write_Max7219_byte(dat); //写入数据，即数码管显示数字
delay_ms(500);
CS_1;
}
void Init_MAX7219(void)
{
Write_Max7219(0x09, 0x00); //译码方式：BCD码
Write_Max7219(0x0a, 0x03); //亮度
Write_Max7219(0x0b, 0x07); //扫描界限；8个数码管显示
Write_Max7219(0x0c, 0x01); //掉电模式：0，普通模式：1
Write_Max7219(0x0f, 0x00); //显示测试：1；测试结束，正常显示：0
}
void main(void)
{
close_dog();
P2SEL&=~(BIT0+BIT1+BIT2);
P2DIR |=BIT0+BIT1+BIT2;
uchar i,j;
delay_ms(50);
Init_MAX7219();
while(1)
{
for(j=0;j<38;j++)
{
for(i=1;i<9;i++)
Write_Max7219(i,disp1[j][i-1]);
delay_ms(1000);
}
}
}
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