智能车制作

标题: 12864问题 [打印本页]

作者: Angel懒猫 时间: 2012-8-27 15:09
标题: 12864问题
用mc9s12xs128改了个51的12864程序  什么都不显示啊  可能是时序问题  大神们帮看看呗谢谢了

#include <hidef.h>    /* common defines and macros */
#include "derivative.h"    /* derivative-specific definitions */
#include "init.h"
#include <stdlib.h>
#include <math.h>
#include <stdio.h>
#define LEDCPU PORTK_PK4
#define LEDCPU_dir DDRK_DDRK4
#include <MC9S12XS128.h>
/*RS=PORTA_PA0;
RW=PORTA_PA1;
EN=PORTA_PA2; */
unsigned char num;
unsigned char const table[]={0x10,0x80,0x08,0x80,0x7E,0xFC,0x24,0x80,0x18,0xFC,0xFF,0x04,0x00,0xFC,0x3E,0x80,0x22,0xF8,0x3E,0x80,0x22,0xF8,0x3E,0x80,0x22,0xFA,0x22,0x82,0x2A,0x82,0x24,0x7E};
unsigned char const zk []={0x08,0x20,0x1C,0x10,0x1C,0x1C,0xFF,0x9E,0x7F,0x1E,0x1C,0x1F,0x3E,0x1F,0x3E,0x1F,0x77,0x1F,0x41,0x3F,0x00,0x7E,0x00,0xFE,0x83,0xFC,0x7F,0xF8,0x3F,0xF0,0x0F,0xC0};
unsigned char const table2[]={0x03,0xC0,0x04,0x20,0x04,0x20,0x03,0xC0,0x0C,0x30,0x14,0x28,0x14,0x28,0x14,0x28,0x14,0x28,0x17,0xE8,0x04,0x20,0x04,0x20,0x04,0x20,0x04,0x20,0x0E,0x70,0x0E,0x70};
unsigned char const table3[]={0x00,0x39,0x00,0x6A,0x00,0xA8,0x01,0x29,0x7E,0x2A,0xFC,0x29,0xCC,0x2A,0xCC,0x28,0xFC,0x29,0xFC,0x2A,0x7E,0x28,0x01,0x29,0x00,0xAA,0x00,0x68,0x00,0x38};
unsigned char const table4[]={"LCD12864"};
unsigned char const table5[]={"自定义显示字符"};
unsigned char const table6[]={"液晶显示"};
void delay_10us(long m)
{ // 延时m*10us
  //while(m--);
unsigned long a;
for(a=15*m;a>0;a--);
}
void read_busy()
{
DDRB=0x00;
delay_10us(10);
PORTA_PA0=0;
PORTA_PA1=1;
PORTA_PA2=1;
while(PORTB&0x80);
PORTA_PA2=0;
DDRB=0Xff;
}
void write_LCD_command(unsigned char value)
{
read_busy();

PORTA_PA0=0;
PORTA_PA1=0;
PORTA_PA2=1;
PORTB=value;
delay_10us(10);
PORTA_PA2=0;
}
void write_LCD_data(unsigned char value)
{
read_busy();
PORTA_PA0=1;
PORTA_PA1=0;
PORTA_PA2=1;
PORTB=value;
delay_10us(10);
PORTA_PA2=0;
}
void CGRAM()
{
uchar i;
write_LCD_command(0x30);
write_LCD_command(0x40);
for(i=0;i<16;i++)
{
write_LCD_data(table[i*2]);
write_LCD_data(table[i*2+1]);
}

write_LCD_command(0x50);
for(i=0;i<16;i++)
{
write_LCD_data(zk[i*2]);
write_LCD_data(zk[i*2+1]);
}

write_LCD_command(0x60);
for(i=0;i<16;i++)
{
write_LCD_data(table2[i*2]);
write_LCD_data(table2[i*2+1]);
}

write_LCD_command(0x70);
for(i=0;i<16;i++)
{
write_LCD_data(table3[i*2]);
write_LCD_data(table3[i*2+1]);
}
}
//===========================================================================================
/*************************************************************/
/*                   初始化12864                      */
/*************************************************************/
//函数名称：LCD_Init
//函数功能：LCD初始化
//入口参数：无
//出口参数：无
void LCD_Init()
{
delay_10us(4000);
write_LCD_command(0x30);
delay_10us(10);
write_LCD_command(0x30);
delay_10us(4);
write_LCD_command(0x0C);
delay_10us(10);
write_LCD_command(0x01);
delay_10us(1000);
write_LCD_command(0x06);
}

/*************************************************************/
/*                   初始化所有模块                      */
/*************************************************************/
void init_all(void)
{
INIT_PLL();//时钟80M
LCD_Init(); //自己加的12864初始化
}
/*************************************************************/
/*                      主函数                         */
/*************************************************************/
void main()
{

  LEDCPU_dir=1;
  DDRE=0x00;
  PUCR_PUPEE=1;
  PUCR_PUPAE=1;
  init_all();
  LEDCPU=0;

EnableInterrupts;

DDRA=0Xff;//信号输入
DDRB=0Xff;
while(1)
{
write_LCD_command(0x80);
for(num=0;num<8;num++)
{
write_LCD_data(table6[num]);
}

write_LCD_command(0x84);
for(num=0;num<8;num++)
{
write_LCD_data(table4[num]);
}

write_LCD_command(0x90);
for(num=0;num<14;num++)
{
write_LCD_data(table5[num]);
}

CGRAM();
write_LCD_command(0x98);
write_LCD_data(0x00);
write_LCD_data(0x00);
write_LCD_command(0x99);
write_LCD_data(0x00);
write_LCD_data(0x02);
write_LCD_command(0x9A);
write_LCD_data(0x00);
write_LCD_data(0x04);
write_LCD_command(0x9B);
write_LCD_data(0x00);
write_LCD_data(0x06);
}
}

作者: turf456 时间: 2012-8-27 15:43
函数没错的话多数是时序问题

作者: Angel懒猫 时间: 2012-8-27 17:16

turf456 发表于 2012-8-27 15:43
函数没错的话多数是时序问题

时序也改许多遍了没反映能帮看看吗不胜感激

作者: turf456 时间: 2012-8-27 18:10

Angel懒猫发表于 2012-8-27 17:16
时序也改许多遍了没反映能帮看看吗不胜感激

我这没有条件，最笨一招，先确定屏是完好的，用逻辑分析仪或者示波器看看端口波形有没有问题。

作者: Angel懒猫 时间: 2012-8-27 19:57

turf456 发表于 2012-8-27 18:10
我这没有条件，最笨一招，先确定屏是完好的，用逻辑分析仪或者示波器看看端口波形有没有问题。

啊还是谢谢了屏是好的用51试了我再改改吧

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