Record the use of TM1668 driver

yleer3407

Record the use of TM1668 driver [Copy link]

I am new to single-chip microcomputers. Here is a record of using TM1668 to drive a common anode LED patch.

#include	"config.h"

void Send_Data(unsigned char datas);
unsigned char getConmergeSegs(unsigned char data6,unsigned char data5,unsigned char data4,unsigned char data3,unsigned char data2,unsigned char data1,unsigned char bits);
void display_all(unsigned char data1,unsigned char data2,unsigned char data3,unsigned char data4,unsigned char data5,unsigned char data6);

//const unsigned char segs[] = {0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0x88,0x83,0xc6,0xa1,0x86,0x8e};
const unsigned char segs[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};

sbit DIO_1668 = P4^2 ;
sbit CLK_1668 = P3^4 ;
sbit STB_1668 = P3^5 ;

/*
 * 程序名：开拓者NO.1
 * 描述  ：tm1668.c
 * 输入  ：无
 * 输出  ：无
 */

 void delay(int time)
 {
	int i,j;
	 for(i=0;i<time;i++)
	 {
		for(j=0;j<1000;j++)
		 {
			
		 }
	 }
 }
//=============================================================
//==================   发送数据   ============================= 
void Send_Data(unsigned char datas)
{
	unsigned char i;
	STB_1668 = 0;
	delay(25);
   	for(i=0;i<8;i++)
	{
		CLK_1668 = 0;   //PC8=0
	    
		if((datas&0x01)==0x00)
		{
					DIO_1668=0; 
		}

		else
		{
					DIO_1668=1; 
		}
		delay(25);
		CLK_1668 = 1;  //PC8=1
		delay(25);
		datas=datas>>1;
	}
	delay(25);	
}
//==================================================================

//============   共阴极显示转共阳极显示   ==========================
unsigned char getConmergeSegs(unsigned char data6,unsigned char data5,unsigned char data4,unsigned char data3,unsigned char data2,unsigned char data1,unsigned char bits) //bit=0..6
{
	unsigned char cal=0;
	unsigned char s6,s5,s4,s3,s2,s1;
	
	s6=segs[data6]>>bits;
	s5=segs[data5]>>bits;
 	s4=segs[data4]>>bits; 
 	s3=segs[data3]>>bits;
 	s2=segs[data2]>>bits; 
 	s1=segs[data1]>>bits;
	
	s6=(s6)&0x01;
  s5=(s5)&0x01;
  s4=(s4)&0x01;
  s3=(s3)&0x01;
  s2=(s2)&0x01;
  s1=(s1)&0x01;
	
	s6=s6<<5;
	s5=s5<<4;
  s4=s4<<3;
  s3=s3<<2;
  s2=s2<<1;
  
  cal=s6+s5+s4+s3+s2+s1;
  return cal;
}
//==================================================================
//======================   显示函数   ==============================
void display_all(unsigned char data1,unsigned char data2,unsigned char data3,unsigned char data4,unsigned char data5,unsigned char data6)
{
	unsigned char dataa=0;
  unsigned char i=0;
  unsigned char m=0;
	
  STB_1668 = 0;
	Send_Data(0x03);  
	STB_1668 = 1;	
	delay(25);	  
	STB_1668 = 0;	
	Send_Data(0x40);  
	STB_1668 = 1;	
	delay(25);	  
	STB_1668 = 0;	
	Send_Data(0xC0);  
	for(i=0;i<7;i++)
	{
		if(m==0)
		{
			dataa=getConmergeSegs(data6, data5, data4, data3, data2, data1,i);
			Send_Data(dataa);
		}
		else
		{
			Send_Data(0x0);
		}
		Send_Data(0x01);
	}
	STB_1668 = 1;	
	delay(25);	  
	STB_1668 = 0;
	
	Send_Data(0x8f);
	STB_1668 = 1;	
	delay(25); 	
}
//==================================================================
/*
extern void Delayms( uint32_t ms );
void tm1668_test(void)
{
	tm1668_init();
	//while(1)
	{
		display_all(0x1,2,3,4);
		Delay_MS(20000); 
		display_all(0x2,3,4,5);
		Delay_MS(20000); 			
	}
	
	display_all(0x5,6,7,8);
  Delay_MS(20000);
	
	while(1){}
	
} */

//=========================   TM1668初始化   =========================================
void tm1668_init(void)
{ 
		unsigned char dataa=0;
  unsigned char i=0;
  unsigned char m=0;
	
  STB_1668 = 0;
	Send_Data(0x03);  
	STB_1668 = 1;	
	delay(25);	  
	STB_1668 = 0;	
	Send_Data(0x40);  
	STB_1668 = 1;	
	delay(25);	  
	STB_1668 = 0;	
	Send_Data(0xC0);  
	for(i=0;i<7;i++)
	{
		if(m==0)
		{
			Send_Data(0xff);
		}
		else
		{
			Send_Data(0x0);
		}
		Send_Data(0x0);
	}
	STB_1668 = 1;	
	delay(25);	  
	STB_1668 = 0;
	
	Send_Data(0x8f);
	STB_1668 = 1;	
	delay(25);
//	display_all(i1,i1,i1,i1);		
//	delay(1000);
}

This content is originally created by yleer3407 , a user of EEWORLD forum. If you want to reprint or use it for commercial purposes, you must obtain the author's consent and indicate the source

lzm2008

感謝分享。