ATmaga16三线法驱动12864，为什么不显示？ (amobbs.com 阿莫电子技术论坛) -

panhai0101 发表于 2014-10-17 11:51:56

ATmaga16三线法驱动12864，为什么不显示？

如题。代码如下。
主函数：
#include <iom16v.h>
#include <macros.h>
#include "lcd12864.h"
void main(void)
{

Lcd_Init();
Lcd_Str(1,5,"是否调整参数？");
}
.C文件
#include "lcd12864.h"

unsigned charN[]={"0123456789"};
//const prog_uchar img[]={};//定义128*64的图像

void delay_lcd_us(unsigned int xus)/*us延时函数 8*0.125=1us*/
{
int i,j;
for(j=0;j<8;j++)
{
   for (i=0;i<xus;i++)
   NOP();
}
}
void delay_lcd_ms(unsigned int xms)/*ms延时函数*/
{
while(xms--)
{
   unsigned int j;
   for(j=1;j<=1332;j++);
}
}

/*********************
LCD送命令子函数
********************/
unsigned char Read_data(void)
{
unsigned char i,dat;
unsigned char temp1=0,temp2=0;
CS_off;
SID_off;
CS_on;
dat=0xfc;
for(i=0;i<8;i++)
{
   if((dat&0x80)==0x80) SID_on;
   if((dat&0x80)==0x00) SID_off;
   SCLK_off;
   SCLK_on;
   dat<<=1;
}
for(i=0;i<8;i++)
{
   temp1<<=1;
   DATA_IN_lcd;
   //Lcd_Data_Ddr|=~RW;
   if(LCD_READ_DATA==1)
      temp1|=0x01;
   else
   temp1&=0xfe;
DATA_OUT_lcd;
SCLK_off;
SCLK_on;
}
for(i=0;i<8;i++)
{
   temp2<<=1;
   DATA_IN_lcd;
   //Lcd_Data_Ddr|=~BIT(RW);
   if(LCD_READ_DATA==1)
      temp2|=0x01;
   else temp2&=0xfe;
   DATA_OUT_lcd;
   SCLK_off;
   SCLK_on;
}

//CS_off;SID_on;SCLK_off;
   return ((temp1&0xf0)+(temp2>>4));
}

void BUSY(void)
{
while((Read_data()&0x80)==0x80);
}

void Write_com(unsigned char lcd_com) //LCD送命令子函数
{
unsigned char i,dat;
BUSY();
CS_off;
SID_off;
CS_on;
dat=0xf8;//写命令
for(i=0;i<8;i++)
{
if((dat&0x80)==0x80) SID_on;
if((dat&0x80)==0x00) SID_off;
SCLK_off;
SCLK_on;
dat<<=1;
}
dat=(lcd_com&0xf0);
for(i=0;i<8;i++)//写高四位
{
if((dat&0x80)==0x80) SID_on;
if((dat&0x80)==0x00) SID_off;
SCLK_off;
SCLK_on;
dat<<=1;
}
dat=(lcd_com&0x0f);
dat<<=4;
for(i=0;i<8;i++)//写低四位
{
if((dat&0x80)==0x80) SID_on;
if((dat&0x80)==0x00) SID_off;
SCLK_off;
SCLK_on;
dat<<=1;
}

}
//-----------------------------------------------------------
void Write_data(unsigned char lcd_com)//LCD送显示数据子函数
{
unsigned char i,dat;
BUSY();
CS_off;
SID_off;
CS_on;
dat=0xfa;//写数据
for(i=0;i<8;i++)
{
if((dat&0x80)==0x80) SID_on;
if((dat&0x80)==0x00) SID_off;
SCLK_off;
SCLK_on;
dat<<=1;
}
dat=(lcd_com&0xf0);
for(i=0;i<8;i++)//写高四位
{
if((dat&0x80)==0x80) SID_on;
if((dat&0x80)==0x00) SID_off;
SCLK_off;
SCLK_on;
dat<<=1;
}
dat=(lcd_com&0x0f);
dat<<=4;
for(i=0;i<8;i++)//写低四位
{
if((dat&0x80)==0x80) SID_on;
if((dat&0x80)==0x00) SID_off;
SCLK_off;
SCLK_on;
dat<<=1;
}
}

/***********初始化************/
void Lcd_Init(void)

{
//JTAG_Set(JTAG_SWD_DISABLE);//关闭JTAG和SWD
//RCC->APB2ENR|=1<<2; //使能PORTC时钟
//SetPin(myGPIOA,myPIN1,GPIO_Out_PP|GPIO_50MHZ);
//SetPin(myGPIOA,myPIN2,GPIO_Out_PP|GPIO_50MHZ);
//SetPin(myGPIOA,myPIN3,GPIO_Out_PP|GPIO_50MHZ);
Lcd_Data_Ddr|=RS|RW|E;
SCLK_off;
Write_com(0x30);
delay_lcd_ms(10);
Write_com(0x30);
delay_lcd_ms(15);
Write_com(0x0c);
delay_lcd_ms(15);
Write_com(0x0c);//开显示，不显示光标
delay_lcd_ms(15);
Write_com(0x06);//写一个字符后地址指针自动加1
delay_lcd_ms(15);
Write_com(0x01);//清屏
delay_lcd_ms(20);
}

/***************清屏命令*********************/
void Lcd_Clear(void)
{
Write_com(0x01);
delay_lcd_ms(10);
}

/******************显示图片***************
void Disp_Img(unsigned char *img)
{
unsigned int j=0;
unsigned char x,y,i;
Write_com(0x34);
   for(i=0;i<9;i+=8)
      for(y=0;y<32;y++)
      for(x=0;x<8;x++)
         {
         Write_com(y+0x80);    //行地址
         Write_com(x+0x80+i);    //列地址
         Write_data(pgm_read_byte(&img));
         Write_data(pgm_read_byte(&img));
      }
   Write_com(0x36);       //扩充指令集
         Write_com(0x30);
}
***/
//画点函数
/*
void Lcd_DrawPoint(unsigned char x,unsigned char y,unsigned char sty)
{
unsigned char i,j;
unsigned char t1,t2;
y=63-y;//从下面向上为0-63
i=x/16;
j=x%16;
if(x/8%2==0){
t1=BUF;
t2=BUF; }
else{
t1=BUF;
t2=BUF; }
Write_com(0x34);
Write_com(0x36);
if(y<32)
{
Write_com(y+0x80);//行地址
Write_com(i+0x80); //列地址
}
else
{
      Write_com(y-32+0x80); //行地址
      Write_com(i+0x88);    //列地址
}
if(j<8)
{
if(sty==1)
t1|=(0x80>>j);
else if(sty==0) t1&=(~(0x80>>j));
Write_data(t1);
Write_data(t2);
}
else
{
if(sty==1)
t2|=(0x80>>(j-8));
else if(sty==0)t2&=~(0x80>>(j-8));
Write_data(t1);
Write_data(t2);
}
Write_com(0x30);
if(x/8%2==0)
{
BUF=t1;
BUF=t2; }
else
{
BUF=t1;
BUF=t2; }
}

*/
/****************清整个GDRAM空间*****************/
void LCD_ClearGDRAM(void)
{
unsigned char x,y;
for(y=0;y<64;y++)
for(x=0;x<16;x++)
{
   Write_com(0x34);
   Write_com(y+0x80); //行地址
   Write_com(x+0x80); //列地址
   Write_com(0x30);
   Write_data(0x00);
   Write_data(0x00);
   }
}


/*********************显示位置*********************/
void Lcd_Loc(unsigned char x,unsigned char y)
{
switch(x)
{
case 1:Write_com(0x80+y-1);break;
case 2:Write_com(0x90+y-1);break;
case 3:Write_com(0x88+y-1);break;
case 4:Write_com(0x98+y-1);break;
}
}

/*************************显示汉字**********************/
void Lcd_Str(unsigned char x,unsigned char y,unsigned char*str)
{
unsigned char a=y;
Lcd_Loc(x,y);
while(*str)
{
      Write_data(*str);
   a++;
   if(a-1==16)
   {
   a=1;
      Lcd_Loc(++x,1);
}
   str++;
delay_lcd_ms(1);
   }
}

/******************显示数字（最多五位，除后两位外非零保留）************************/
void Lcd_Num(unsigned char x,unsigned char y,long signed int Data)
{
unsigned int G,S,B,Q,W; //个、十、百、千、万
Lcd_Loc(x,y);
if(Data<0)
{
Data=-Data;
Write_data('-');
}
W=Data/10000;
Q=Data%10000/1000;
B=Data%10000%1000/100;
S=Data%10000%1000%100/10;
G=Data%10000%1000%100%10;
if(W!=0) {
Write_data(N);
Write_data(N);
Write_data(N);
Write_data(N);
Write_data(N);
            }
if(W==0&&Q!=0)
            {
Write_data(N);
Write_data(N);
Write_data(N);
Write_data(N);
// Write_data(' ');
                              }
if(W==0&&Q==0&&B!=0)
         {
            Write_data(N);
            Write_data(N);
            Write_data(N);
// Write_data(' ');
// Write_data(' ');
                  }
if(W==0&&Q==0&&B==0&&S!=0)
         {
            Write_data(N);
            Write_data(N);
// Write_data(' ');
// Write_data(' ');
// Write_data(' ');
                              }
   if(W==0&&Q==0&&B==0&&S==0)
         {
            Write_data(N);
            Write_data(N);
// Write_data(' ');
// Write_data(' ');
// Write_data(' ');
}
}
/**************************显示浮点数（浮点数小于1000，保留两位小数）*********************/
//999.99
void Lcd_Float(unsigned char x,unsigned char y,float Data)
{
   long a;
   unsigned int B,S,G,SF,BF;//百、十、个、十分、百分位
// unsigned int QF;
   Lcd_Loc(x,y);
if(Data<0)
{
Data=-Data;
Write_data('-');
}
   a=Data*1000;
   B=a/100000;
   S=a%100000/10000;
   G=a%100000%10000/1000;
   SF=a%100000%10000%1000/100;
   BF=a%100000%10000%1000%100/10;
//    QF=a%100000%10000%1000%100%10;

   if(B!=0)
   {
   Write_data(N);
   Write_data(N);
   Write_data(N);
   Write_data('.');
   Write_data(N);
   Write_data(N);
//    Write_data(N);
   }
   if(B==0&&S!=0)
   {
   Write_data(N);
   Write_data(N);
   Write_data('.');
   Write_data(N);
   Write_data(N);
//    Write_data(N);
Write_data(' ');
   }
   if(B==0&&S==0)
   {
   Write_data(N);
   Write_data('.');
   Write_data(N);
   Write_data(N);
//    Write_data(N);
Write_data(' ');
Write_data(' ');
   }
}

/*****************自定义一个字符代码********************
****unsigned char x : 显示行坐标
****unsigned char y : 显示列坐标
****unsigned char N    : 定义的第N个字符
****unsigned char *zk : 定义的字符点阵数组
*********************************************************/
void Lcd_Def(unsigned char x,unsigned char y,unsigned char N,unsigned char *zk)
{
int i;
Write_com(0x30);
switch(N)
{
      case 1:Write_com(0x40);break;//第一个字符的位置为0x40
case 2:Write_com(0x50);break;//第二个字符的位置为0x50
case 3:Write_com(0x60);break;//第三个字符的位置为0x60
case 4:Write_com(0x70);break;//第四个字符的位置为0x70
}
for(i=0;i<16;i++)
{
   Write_data(zk);
   Write_data(zk);
   }
   Lcd_Loc(x,y);
   Write_data(0x00);
   switch(N)
   {
   case 1:Write_data(0x00);break; //第一个自定义显示字符编码为：0x00
   case 2:Write_data(0x02);break; //第二个自定义显示字符编码为：0x02
   case 3:Write_data(0x04);break; //第三个自定义显示字符编码为：0x04
   case 4:Write_data(0x06);break; //第四个自定义显示字符编码为：0x06
   }
}
.h文件
/******12864带中文字库显示器-串行方式********/
#ifndef __LCD12864_H
#define __LCD12864_H
/*
#define RS PAout(1)
#define RW PAout(2)
#define E PAout(3)
*/
#include <iom16v.h>
#include <macros.h>

#define Lcd_Data_Port PORTA
#define Lcd_Data_PinPINA
#define Lcd_Data_DdrDDRA

#define RS BIT(1)
#define RW BIT(2)
#define EBIT(3)

#define CS_on {Lcd_Data_Ddr|=RS;Lcd_Data_Port|=RS;}
#define CS_off {Lcd_Data_Ddr|=RS;Lcd_Data_Port|=~RS;}
#define SID_on {Lcd_Data_Ddr|=RW;Lcd_Data_Port|=RW;}
#define SID_off {Lcd_Data_Ddr|=RW;Lcd_Data_Port|=~RW;}
#define SCLK_on {Lcd_Data_Ddr|=E;Lcd_Data_Port|=E;}
#define SCLK_off{Lcd_Data_Ddr|=E;Lcd_Data_Port|=~E;}
/*
#define DATA_IN_lcd SetPin(myGPIOA,myPIN2,GPIO_IPDU);
#define DATA_OUT_lcd {SetPin(myGPIOA,myPIN2,GPIO_Out_PP|GPIO_50MHZ);myGPIO_SetBit(myGPIOA,myPIN2);}
#define LCD_READ_DATA PAin(2)
*/

//8M环境下
#define DATA_IN_lcd Lcd_Data_Ddr|=~RW
#define DATA_OUT_lcd {(Lcd_Data_Ddr|=RW);(Lcd_Data_Port|=RW);}
#define LCD_READ_DATA (Lcd_Data_Pin&RW)

//#define LCD_W 128
//#define LCD_H 64
void delay_lcd_us(unsigned int xus);
void delay_lcd_ms(unsigned int xms);

void BUSY(void);
void Write_com(unsigned char cmdcode);
void Write_data(unsigned char DispData);
unsigned char Read_data(void);
void Lcd_Init(void);
void Lcd_Clear(void);
void LCD_ClearGDRAM(void);
void Lcd_Loc(unsigned char x,unsigned char y);
void Lcd_Str(unsigned char x,unsigned char y,unsigned char*str);
void Lcd_Num(unsigned char x,unsigned char y,long signed int Data);
void Lcd_Float(unsigned char x,unsigned char y,float Data);
void Disp_Img(unsigned char*img);
void Lcd_Def(unsigned char x,unsigned char y,unsigned char N,unsigned char *zk);
void Lcd_DrawPoint(unsigned char x,unsigned char y,unsigned char sty);

#endif

panhai0101 发表于 2014-10-17 15:17:41

调试成功，犯了个小小错误。上传自己整理的东东。测试成功。

panhai0101 发表于 2014-10-17 15:19:01

三线串行驱动，节约I/O的资源。压榨单片机的资源是目标，玩到极限，才有乐趣。谢谢之前坛友的指导。

陶新成 发表于 2014-10-17 15:43:17

我用的是两线，片选让我直接接到高电平了

panhai0101 发表于 2014-10-17 16:16:25

陶新成发表于 2014-10-17 15:43
我用的是两线，片选让我直接接到高电平了

哇，这都行啊。。。。坛友牛人辈出

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ATmaga16三线法驱动12864，为什么不显示？