📄 62256tiao__.c
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/************************************************************************
该程序是所有的并行器件挂在PC口上面，由8255负责给62256写地址
该程序是测试单片机最小开发系统的小工具，里面包含8255，62256，串口，液晶
，还能将62256的数据送到PC机，对AD进行采样等，常用器件及常用调试工具和方法
**************************************************************************/
#include"mega16.h"
#include"delay.h"
#include"8255.c"
#define WR PORTB.0
#define WR_en DDRB.0
#define RD PORTB.1
#define RD_en DDRB.1
#define CS PORTB.4
#define CS_en DDRB.4
#define A1 PORTB.5
#define A1_en DDRB.5
#define A0 PORTB.6
#define A0_en DDRB.6
#define BUS_out PORTC
#define BUS_in PINC
#define BUS_en DDRC
void rest8255(unsigned char state)
{BUS_en=0xff;A1_en=1;A0_en=1;CS_en=1;RD_en=1;WR_en=1;
BUS_out=0xff;
CS=0; //片选上
A1=1; A0=1;//写入寄存器
WR=0;
BUS_out=state;
WR=1;
CS=1;
}
void send8255(unsigned char data,unsigned char direct)
{BUS_en=0xff;
CS=0;
switch(direct)
{case 0: A1=0;A0=0;break;
case 1: A1=0;A0=1;break;
case 2: A1=1;A0=0;break;
case 3: A1=1;A0=1;break;
}
WR=0;
BUS_out=data;
WR=1;
CS=1;
}
void send_a(unsigned char data)
{BUS_en=0xff;
CS=0;
A1=0;A0=0;
WR=0;
BUS_out=data;
WR=1;
CS=1;
}
void send_b(unsigned char data)
{BUS_en=0xff;
CS=0;
A1=0;A0=1;
WR=0;
BUS_out=data;
WR=1;
CS=1;
}
void send_c(unsigned char data)
{BUS_en=0xff;
CS=0;
A1=1;A0=0;
WR=0;
BUS_out=data;
WR=1;
CS=1;
}
void send_r(unsigned char data)
{BUS_en=0xff;
CS=0;
A1=1;A0=1;
WR=0;
BUS_out=data;
WR=1;
CS=1;
}
#include"chuankou.c"
//#include<mega16.h>
//#include<delay.h >
#define clock PORTD.6
#define clock_en DDRD.6
#define date PORTD.7
#define date_en DDRD.7
void send(unsigned char w);
void xianshi(long w,unsigned char weishu);
flash unsigned char Led_tab[2][23]={ /*共阳数码管 显示段笔划 abcdefgh; 0=亮 *//* 0,1,2,3,4,5,6,7 */ /* 8,9,A,b,C,d,E,F */
0x03,0x9F,0x25,0x0D,0x99,0x49,0x41,0x1F,
0x01,0x09,0x11,0xC1,0x63,0x85,0x61,0x71,
0xFF,0x31,0x91,0xE3,0xFD,0x6D,0xD5,0x02,
0x9E,0x24,0x0C,0x98,0x48,0x40,0x1E,0x00,
0x08,0x10,0xC0,0x62,0x84,0x60,0x70,0x02,
0x30,0x90,0xE2,0xFC,0x6E,0xD4};
void send(unsigned char w)
{unsigned char i;
for(i=0;i<8;i++)
{clock=0;
date=w&1;
clock=1;
w=w>>1;
}
}
void xianshi(long w,unsigned char weishu)
{unsigned char i;
unsigned char k;
bit flag=0;
if(w<0)
{w=-w;
flag=1;
}
clock_en=1;
date_en=1;
for(i=0;i<8;i++)
{
if(w!=0)
{k=Led_tab[0][w%10];
if(i==weishu)k=Led_tab[1][w%10];
}
else
{if(flag)
{k=253;
}
if(i==weishu)k=Led_tab[1][w%10];
else
if(i<weishu)k=0x03;
else
{if(!flag)
{k=0xff;
}
if((i==(weishu+1))&&flag)k=253;
flag=0;
}
}
send(k);
w=w/10;
}
}
#include"62256.c"
#define CS_ram PORTA.7
#define CS_ram_en DDRA.7
void writeram(unsigned int address,unsigned char data)
{unsigned char temp=0;
CS_ram_en=1;
CS_ram=1;
temp=address;
send_a(temp);
address=address>>8;
temp=address;
send_b(temp);
BUS_out=data;
CS_ram=0;//片选上62256
#asm("NOP")
WR=0;
WR=1;
#asm("NOP")
CS_ram=1;
}
unsigned char readram(unsigned int address)
{unsigned char temp=0;
//CS_ram_en=1;
CS_ram=1;
temp=address;
send_a(temp);
address=address>>8;
temp=address;
send_b(temp);
CS_ram=0;//片选上62256
BUS_en=0x00;
BUS_out=0x00;
RD=0;
#asm
NOP
NOP
#endasm
temp=BUS_in;
RD=1;
CS_ram=1;
return temp;
}
#include"avryejing.c"
#include"mega16.h"
#include"delay.h"
#define Line_Len 30
//---------定义数据通道口------------------
#define Data_Addr PORTC
#define Date_en DDRC
#define Date_in PINC
#define MyWR PORTB.0
#define MyRD PORTB.1
#define MyCE PORTB.2
#define MyCD PORTB.3
//---------向液晶屏送一帧数据------------------
flash unsigned char k[]={
0x08,0x04,0x04,0x1F,0x10,0x10,0x10,0x1F,0x00,0x01,0x08,0x28,0x28,0x68,0x07,0x00,
0x20,0x20,0x40,0xF0,0x10,0x10,0x10,0xF0,0x00,0x00,0x88,0x84,0x16,0x12,0xF0,0x00,//"总0
0x10,0x18,0x10,0x20,0x23,0x48,0xF8,0x13,0x20,0x7C,0x00,0x00,0x1C,0xE3,0x00,0x00,
0x40,0x50,0x4C,0x48,0xFC,0x40,0x40,0xFE,0x40,0x48,0x30,0x22,0xD2,0x0A,0x06,0x02,//"线1
0x08,0x0C,0x08,0x10,0x10,0x20,0x40,0x9F,0x04,0x04,0x04,0x04,0x08,0x10,0x20,0x40,
0x80,0x80,0x40,0x20,0x30,0x18,0x0E,0xE4,0x20,0x20,0x20,0x20,0x20,0xA0,0x40,0x00,//"分2
0x00,0x00,0x7C,0x44,0x47,0x44,0x7C,0x45,0x44,0x44,0x7C,0x00,0x00,0x00,0x00,0x00,
0x10,0x10,0x10,0x10,0xFE,0x10,0x10,0x10,0x90,0x90,0x10,0x10,0x10,0x10,0x50,0x20,//"时3
0x08,0x0F,0x10,0x2F,0x48,0x0F,0x08,0x0F,0x04,0x07,0x0C,0x12,0x21,0x06,0x18,0x60,
0x00,0xFC,0x00,0xF8,0x08,0xF8,0x08,0xF8,0x00,0xF8,0x10,0x60,0x80,0x60,0x1E,0x04,//"复4
0x00,0x1F,0x10,0x10,0x10,0x1F,0x10,0x10,0x10,0x1F,0x10,0x10,0x20,0x20,0x40,0x80,
0x00,0xFC,0x84,0x84,0x84,0xFC,0x84,0x84,0x84,0xFC,0x84,0x84,0x84,0x84,0x94,0x88,//"用5
0x40,0x27,0x24,0x84,0x45,0x55,0x15,0x25,0x25,0x25,0xC5,0x41,0x42,0x42,0x44,0x48,
0x02,0xC2,0x42,0x52,0x52,0x52,0x52,0x52,0x52,0x52,0x52,0x02,0x82,0x42,0x4A,0x04,//"测6
0x00,0x40,0x20,0x30,0x27,0x00,0xE0,0x27,0x21,0x21,0x21,0x21,0x29,0x36,0x20,0x00,
0x20,0x28,0x24,0x24,0xFE,0x20,0x20,0xE0,0x20,0x10,0x10,0x0A,0xCA,0x06,0x02,0x00,//"试7
0x01,0x01,0x1F,0x11,0x11,0x1F,0x01,0x3F,0x21,0x21,0x21,0x3F,0x21,0x01,0x01,0x01,
0x00,0x00,0xF0,0x10,0x10,0xF0,0x00,0xF8,0x08,0x08,0x08,0xF8,0x08,0x00,0x00,0x00,//"串8
0x00,0x00,0x3F,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,
0x00,0x00,0xF8,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0xF8,0x08,0x08,0x00,0x00,//"口9
0x02,0x02,0x7F,0x04,0x04,0x08,0x18,0x17,0x30,0x50,0x90,0x10,0x10,0x17,0x10,0x00,
0x00,0x00,0xFE,0x00,0x00,0x40,0x40,0xFC,0x40,0x40,0x40,0x40,0x40,0xFE,0x00,0x00,//"在10
0x10,0x10,0x13,0xFD,0x10,0x17,0x14,0x18,0x30,0xDF,0x11,0x13,0x10,0x10,0x51,0x26,
0x40,0x20,0xFC,0x08,0x90,0xFE,0x00,0x80,0x80,0xFE,0x10,0x10,0xE0,0x50,0x8C,0x04,//"接11
0x08,0x08,0x08,0x48,0x49,0x49,0x4A,0x48,0x48,0x58,0x68,0x48,0x08,0x09,0x0E,0x08,
0x80,0x80,0x80,0x80,0xFE,0x08,0x88,0x88,0x88,0x50,0x50,0x20,0x50,0x8E,0x04,0x00,//"收12
0x08,0x49,0x2A,0x1C,0xFF,0x1C,0x2B,0x48,0x08,0xFF,0x12,0x34,0x0C,0x32,0xC0,0x00,
0x20,0x30,0x20,0x20,0x7E,0x44,0x44,0xC4,0x28,0x28,0x10,0x10,0x28,0x4E,0x84,0x00,//"数13
0x10,0x13,0x12,0xFA,0x13,0x12,0x16,0x1B,0x32,0xD2,0x13,0x13,0x15,0x15,0x59,0x21,
0x00,0xFC,0x04,0x04,0xFC,0x20,0x20,0xFE,0x20,0x20,0xFC,0x04,0x04,0x04,0xFC,0x04,//"据14
0x00,0x7F,0x08,0x12,0x21,0x7F,0x25,0x04,0x04,0x7F,0x04,0x04,0x05,0x0E,0x70,0x20,
0x04,0x84,0x04,0x24,0x24,0xA4,0x24,0x24,0x24,0xA4,0x24,0x24,0x84,0x04,0x14,0x08,//"到15
0x00,0x00,0x40,0x20,0x20,0x10,0x18,0x0F,0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x00,
0x00,0x00,0x08,0x08,0x08,0x10,0x30,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//"16
0xFE,0xFE,0xE0,0xEE,0xEE,0xE0,0xFE,0xC0,0xDE,0xDE,0xDE,0xC0,0xDE,0xFE,0xFE,0xFE,
0xFF,0xFF,0x0F,0xEF,0xEF,0x0F,0xFF,0x07,0xF7,0xF7,0xF7,0x07,0xF7,0xFF,0xFF,0xFF,//串17
0xFF,0xFF,0xC0,0xDF,0xDF,0xDF,0xDF,0xDF,0xDF,0xDF,0xDF,0xC0,0xDF,0xDF,0xFF,0xFF,
0xFF,0xFF,0x07,0xF7,0xF7,0xF7,0xF7,0xF7,0xF7,0xF7,0xF7,0x07,0xF7,0xF7,0xFF,0xFF//口18
};
void Post_Msg(unsigned char msg)
{Date_en=0xff;
Data_Addr=0xff;
MyCE=0;
MyCD=0;
Data_Addr = msg;
MyWR=0;
MyWR=1;
MyCE=1;
}
//------------送一条指令函数-----------------
void Post_Com(unsigned char msg)
{Date_en=0xff;
MyCE=0;
MyCD=1;
Data_Addr=msg;
MyWR=0;
MyWR=1;
MyCE=1;
}
//-------------接收一帧据数-------------------
unsigned char Read_Msg()
{unsigned char Statu;
Date_en=0xff;
Data_Addr=0xFF;
MyCE=0;
MyCD=1;
MyRD=0;
Date_en=0;
Statu=Date_in;
MyRD=1;
MyCE=1;
Date_en=0xff;
return (Statu);
}
//*********************************************
//*************************************
//读状态函数
//*************************************
void Read_Sta(unsigned char mark)
{
bit exit=0;
unsigned char Sta;
while(1)
{
Sta=Read_Msg(); //取得lcd当前状态
switch(mark) //得到需要的状态
{
case 1:if((Sta&0x03)==0x03)exit=1;break; //分离状态１，读写状态
case 2:if(Sta&0x04)exit=1;break; //分离状态２
case 3:if(Sta&0x10)exit=1;break; //分离状态３
default:break;
}
if(exit)break; //确认退出
}
}
//****************************************
//*************************************
//通讯函数
//说明:参数mark:传送的数据,2为两帧dat1和dat2都有效,1为一帧dat1有效,dat1为数据1, dat2为数据2,com为指令码
//*************************************
void Send_lcd(unsigned char mark,unsigned char dat1,unsigned char dat2,unsigned char com)
{
if(mark) //判断指令类型
{
Read_Sta(1);
Post_Msg(dat1); //类型1和2dat1均有效
if(mark==2)
{
Read_Sta(1);
Post_Msg(dat2); //类型2时dat2有效
}
}
Read_Sta(1);
Post_Com(com); //送指令码
}
//*************************************
//*************************************
//清显示函数
//说明:此函数可将液晶屏内从00单元开始8200单元结束的所有区域数据清零,但是不会对CGRAM汉字字模区清零
//************************************
void Clear()
{
unsigned int i;
Send_lcd(2,0x00,0x00,0x24); //置光标首地址(0x00,0x00)
Send_lcd(0,0x00,0x00,0xb0); //设置自动写方式
for(i=0;i<0x1b00;i++)
{
Read_Sta(3); //判断状态三(自动写标志位)
Post_Msg(0x00); //当前地址数据清零
}
for(i=0x1b00+1100;i<8200;i++)
{Read_Sta(3);Post_Msg(0x00);}
Send_lcd(0,0x00,0x00,0xb2); //自动写入结束
}
//***********************************
void Reset_Cgram()
{
unsigned int i;
Send_lcd(2,0x03,0x00,0x22); //置CGRAM偏置地址为0x03(0011 100000 000)
Send_lcd(2,0x00,0x1c,0x24); //置CGRAM字模首地址为0x1c (001 1100 00000000)
Send_lcd(0,0x00,0x00,0xb0); //设置自动写方式,(地址自动增一)
for(i=0;i<1024;i++) //将汉字点阵写入对应CGRAM区域
{
Read_Sta(3); //读状态三,写标志判断
Post_Msg(k[i]);
}
Send_lcd(0,0x00,0x00,0xb2); //自动写入结束
}
//************************************
//显示屏初始化函数
//************************************
void rest_lcd()
{ DDRB|=0x0f;
PORTB|=0x0f;
Date_en=0xff;
Data_Addr=0xff;
Clear();
Reset_Cgram();
Send_lcd(2,0x00,0x00,0x40); //文本区首地址(0x00,0x00)
Send_lcd(2,Line_Len,0x00,0x41); //文本区宽度(30字符)
Send_lcd(2,0x00,0x08,0x42); //图形区首地址(0x00,0x08)
//Send_lcd(2,0x00,0x04,0x42);
Send_lcd(2,Line_Len,0x00,0x43); //图形区宽度(30字符位置)
Send_lcd(0,0x00,0x00,0xa0); //光标形状态(一行高度)
Send_lcd(0,0x00,0x00,0x80); //点阵逻辑"或"合成
Send_lcd(0,0x00,0x00,0x9f); //开文本显示区,开图形显示区,显示光标,置光标闪烁
}
//************************************
//************************************
//显示单个英文字符函数
//说明:输入参数x_h:字符行坐标，(0-15),y_l:字符列坐标(0-29),word为字符代码(支持ASCII码)
//************************************
void word(unsigned char x_h,unsigned char y_l,unsigned char word)
{
unsigned int sum;
sum=(unsigned int)(Line_Len)*(unsigned int)(x_h)+(unsigned int)(y_l); //计算当前字符位置以前的总点阵数量
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