基於中穎SH88F516驅動TM1640的LED數碼管驅動程序

基於中穎SH88F516驅動TM1640的LED數碼管驅動程序  

2012-02-25 11:51:19|  分類： 開發筆記 |  標籤：sh88f516  tm1640  遊戲機  |舉報|字號 訂閱

應朋友要求，設計了一個遊戲機的功夫寶寶的控制檯板子，用一個SH88F516驅動兩片TM1640的芯片，數碼管用LN5461AS，驅動代碼如下：

#include "SH88F516.h"
#include <stdio.h>                /* prototype declarations for I/O functions */

#define  U2DIN    P1_5
#define  U2SCLK    P1_6
#define  U1DIN    P3_7
#define  U1SCLK    P3_6
#define  TM1640_DELAY  1

//0 1 2 3 4 5 6 7 8 9 A B C D E F
const unsigned char code TM1640_CODE[16]={0x3F, 0x06, 0x5B, 0x4F, 0x66, 0x6D, 0x7D, 0x07, 0x7F, 0x6F, 0x77, 0X7F, 0x39, 0x3F, 0x79, 0x71};

const unsigned char code TM1640_CODEA[16] _at_ 0xe000;

void tm1640_display(unsigned char *led_data);

void tm1640_delay(unsigned int delay)
{
 unsigned int i;
 for(i=0;i<delay;i++);
}
void tm1640_start(void)
{
 U1DIN  = U2DIN  = 1;
 U1SCLK = U2SCLK = 1; tm1640_delay(TM1640_DELAY);
 U1DIN  = U2DIN  = 0; tm1640_delay(TM1640_DELAY);
 U1SCLK = U2SCLK = 0; tm1640_delay(TM1640_DELAY);
}

void tm1640_end(void)
{
 U1SCLK = U2SCLK = 0;
 U1DIN  = U2DIN  = 0; tm1640_delay(TM1640_DELAY);
 U1SCLK = U2SCLK = 1; tm1640_delay(TM1640_DELAY);
 U1DIN  = U2DIN  = 1;   tm1640_delay(TM1640_DELAY);
}

void tm1640_byte(unsigned char data1,unsigned char data2)
{
 unsigned int i;

 for(i=0;i<8;i++)
 {
  data1 = data1 >>1;   U1DIN =CY;
  data2 = data2 >>1; 
  U2DIN =CY;    tm1640_delay(TM1640_DELAY);
  U1SCLK = U2SCLK = 1; tm1640_delay(TM1640_DELAY);
  U1SCLK = U2SCLK = 0; tm1640_delay(TM1640_DELAY);
 }
}

void tm1640_display(unsigned char *led_data)
{
 unsigned int i;

 P1M0 &= ~(1<<6 ); P1M1 |= 1<<6; //
 P1M0 &= ~(1<<5 ); P1M1 |= 1<<5; //
 P3M0 &= ~(1<<6 ); P3M1 |= 1<<6; //
 P3M0 &= ~(1<<7 ); P3M1 |= 1<<7; //

 tm1640_end();
 tm1640_start();
 tm1640_byte(0x40,0x40); // command1
 tm1640_end();

 tm1640_start();
 tm1640_byte(0xc0,0xc0); // command2
 for(i=0;i<16;i++)
 {
  tm1640_byte(TM1640_CODE[led_data[i]],TM1640_CODE[led_data[16+i]]);
 }
 tm1640_end();

 tm1640_start();
 tm1640_byte(0x8b,0x8b); // command3
 tm1640_end();
}