st7565p驱动12864显示问题

时间：10-02 整理：3721RD 点击：

我用st7565p驱动12864 想显示“液晶模块卖场”这四个字但是现在这四个字显示不完整有可能是什么原因造成接线应该没接错软件看了很久看不出是什么原因

lcd.c文件如下

#include "lcd.h"
#include "stm32f10x.h"
#include "delay.h"
#include "led.h"
/****************************LCD_RESet IC for start****************************/
void LCD_RESet(void)
{
// IE  =  0x00;
LCD_RES=0;
delay_ms(50);
LCD_RES=1;
delay_ms(50);
}
/*******************************write Data to IC**************************/
void w_dat(unsigned char dat)
{
GPIOD->ODR&=0X00FF;
GPIOD->ODR|=(dat<<8);
__NOP();
__NOP();
__NOP();
__NOP();
LCD_RS=1;
LCD_RW=0;
LCD_Read=1;
__NOP();
__NOP();
__NOP();
__NOP();
LCD_CS=1;
__NOP();
__NOP();
__NOP();
__NOP();
LCD_CS=0;
}
/******************************write Command to IC***********************/
void w_cmd(unsigned char cmd)
{
GPIOD->ODR&=0X00FF;
GPIOD->ODR|=(cmd <<8);
__NOP();
__NOP();
__NOP();
__NOP();
LCD_RS=0;
LCD_RW=0;
LCD_Read=1;
__NOP();
__NOP();
__NOP();
__NOP();
LCD_CS=1;
__NOP();
LCD_CS=0;
}
/***************************display picture *****************************/
void Display(unsigned char *p)
{
unsigned char page,column;
for(page=0xB7;page>=0xB0;page--)
{
   w_cmd(page);  //set page addLCD_RESs
   w_cmd(0x10);  //set Column addLCD_RESs MSB
   w_cmd(0x00);  //set column addLCD_RESs LSB
   for(column=0;column<128;column++)
      {
      w_dat(*p++);
      }
}
}
void Display_fill(unsigned char fill)
{
unsigned char page,column;
for(page=0xB7;page>=0xB0;page--)
{
   w_cmd(page);  //set page addLCD_RESs
   w_cmd(0x10);  //set Column addLCD_RESs MSB
   w_cmd(0x00);  //set column addLCD_RESs LSB
   for(column=0;column<131;column++)
      {
      w_dat(fill);
      }
}
}
void Grid_white(void)
{
unsigned char page,column;
for(page=0xB7;page>=0xB0;page--)
{
   w_cmd(page);
   w_cmd(0x10);
   w_cmd(0x00);
   for(column=0;column<65;column++)
      {
      w_dat(0xFF);
      w_dat(0x00);
      }
}
}
void Grid_Black(void)
{
unsigned char page,column;
for(page=0xB7;page>=0xB0;page--)
{
   w_cmd(page);
   w_cmd(0x10);
   w_cmd(0x00);
   for(column=0;column<65;column++)
      {
      w_dat(0x00);
      w_dat(0xFF);
      }
}
}
void Grid_Line1(void)
{
unsigned char page,column;
for(page=0xB7;page>=0xB0;page--)
{
   w_cmd(page);
   w_cmd(0x10);
   w_cmd(0x00);
   for(column=0;column<131;column++)
      {
      w_dat(0xAA);
      }
}
}
void Grid_Line2(void)
{
unsigned char page,column;
for(page=0xB7;page>=0xB0;page--)
{
   w_cmd(page);
   w_cmd(0x10);
   w_cmd(0x00);
   for(column=0;column<131;column++)
      {
      w_dat(0x55);
      }
}
}
void Lcd_Init(void)
{
GPIO_InitTypeDef  GPIO_InitStructure;

RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);    //ê1?üPA???úê±?ó
   GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3|GPIO_Pin_4;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
   GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);

   RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD, ENABLE);    //ê1?üPD???úê±?ó
   GPIO_InitStructure.GPIO_Pin = Data;
   GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOD, &GPIO_InitStructure);

   LCD_CS  =  0;

//    GPIOD->ODR&=0X00FF;
// GPIOD->ODR|=(0XFF<<8);
   LCD_RESet();
//    w_cmd(0xA2); //LCD Bias selection(1/65 Duty,1/9Bias)
//    w_cmd(0xA0); //ADC selection(SEG0->SEG128) áDé¨?è ′ó×óμ?óò
//    w_cmd(0xC0); //SHL selection(COM0->COM64) ò3é¨?è ′ó??μ?é?
//    w_cmd(0x26); //Regulator LCD_RESistor Selection
//    delay_ms(5);
//    w_cmd(0x81); //Electronic Volume  μ?á?
//    w_cmd(0x8);    //Reference Register selection  Vo=(1+Rb/Ra)(1+a)*2.1=10
//    w_cmd(VC_ON); //Power Control(Vc=1;Vr=0;Vf=0)
//    delay_ms(10);
//    w_cmd(VC_ON|VR_ON);
//    delay_ms(10);
//    w_cmd(VC_ON|VR_ON|VF_ON);
//    delay_ms(10);
//    w_cmd(0xF8);
//    w_cmd(0x00);
//    delay_ms(5);
//    w_cmd(0xAF); //Display on
  w_cmd(0xE2);
delay_ms(5);
w_cmd(0x2c); /*éy?12???1*/
delay_ms(5);
w_cmd(0x2e); /*éy?12???2*/
delay_ms(5);
w_cmd(0x2f); /*éy?12???3*/
delay_ms(5);
w_cmd(0x24); /*′?μ÷??±è?è￡??ééè??·??§20??27*/
w_cmd(0x81); /*?￠μ÷??±è?è*/
w_cmd(0x1a); /*?￠μ÷??±è?èμ??μ￡??ééè??·??§0??63  1f*/
w_cmd(0xa2); /*1/9???1±è￡¨bias￡?*/
w_cmd(0xc0); /*DDé¨?è?3Dò￡o′óé?μ???*/
w_cmd(0xa0); /*áDé¨?è?3Dò￡o′ó×óμ?óò*/
w_cmd(0x40); /*?eê?DD￡o′óμúò?DD?aê?*/
Clear_Screen();
w_cmd(0xaf); /*?a??ê?*/

}
/**********************Clear*******************************/
void Clear_Screen(void)
{
    unsigned char i,j;
for(i=0;i<9;i++)
{
LCD_CS=0;
w_cmd(0xb0+i);
w_cmd(0x10);
w_cmd(0x00);
for(j=0;j<132;j++)
{
   w_dat(0);
}
   }
}

lcd头文件如下

#ifndef _LCD_H_
#define _LCD_H_
#include "delay.h"
//#include  "intrins.h"
//#include <absacc.h>
//#define extern deep[]
#define VC_ON 0x2C    //1010
#define VR_ON 0x2A
#define VF_ON 0x29    //1001
#define Data GPIO_Pin_8|GPIO_Pin_9|GPIO_Pin_10|GPIO_Pin_11|GPIO_Pin_12|GPIO_Pin_13|GPIO_Pin_14|GPIO_Pin_15
#define LCD_Read PAout(4)
#define LCD_RW PAout(3)
#define LCD_RS PAout(2)
#define LCD_RES PAout(1)
#define LCD_CS PAout(0)
//#define LCD_Read GPIO_Pin_4
//#define LCD_RW GPIO_Pin_3
//#define LCD_RS GPIO_Pin_2
//#define LCD_RES GPIO_Pin_1
//#define LCD_CS GPIO_Pin_0
void LCD_Reset(void);
void w_dat(unsigned char dat);  //D′êy?Y
void w_cmd(unsigned char cmd);  //D′??????á?
void Display(unsigned char *p);
void Display_fill(unsigned char fill);
void Grid_white(void);
void Grid_Black(void);
void Grid_Line1(void);
void Grid_Line2(void);
void Lcd_Init(void);
void Clear_Screen(void);
#endif

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