}:
[ӡ]
:
liumin
rg:
2013-8-6 11:22
}:
λIICҺʾһcҲҬF(xin)ڸǟoְƶ˿RS,RW,EN֪Ǻ
:
xiao1074234390
rg:
2013-8-6 12:29
RS=1nj(sh)(j)RS=0njַRW=1Һx(sh)(j)RW=0Һ(sh)(j)Eʹ
ַ@ӣ
RS=0;
delay(5);//t5ms
P2=com; //ַcom
EN=1;
delay(5);
EN=0;
(sh)(j)RS=1;׃
ַҪҺf
:
liumin
rg:
2013-8-6 14:42
@NеҲ҆ǴҺģIICһֻЃɗlSDASCL
:
admin
rg:
2013-8-6 15:15
@д𰸣
http://www.torrancerestoration.com/mcu/2036.html
:
liumin
rg:
2013-8-6 21:20
admin l(f) 2013-8-6 15:15
@д𰸣http://www.torrancerestoration.com/mcu/2036.html
@njLCD1602ֱӾӵĿƽӿRSR/WEȻľУЛ]IIC鴮·D@ӵӵĽӿֻvcc,GND,SCL,SDAĂ߀ǺܸxoҲنl(f)
:
liumin
rg:
2013-8-6 21:22
ҵǂIICҺǻArduino51ƬC
:
liumin
rg:
2013-8-7 17:28
IICҺѽ(jng)cˣ߀ܺܺõĿƣo҅һ£
#include <reg52.h>
#include "intrins.h"
#define uint unsigned int
#define uchar unsigned char
sbit SCL=P2^1;
sbit SDA=P2^0;
//ӕr(sh)
void delayus()
{
;;;;;
}
void delayms(uchar x)
{
uchar j;
while(x--)
for(j=110;j>0;j--);
}
//_ʼ̖
void iic_start(void)
{
SDA = 1;
delayus();
_nop_();_nop_();_nop_();_nop_();_nop_();
SCL = 1;
delayus();
SDA=0;
delayus();
}
//ֹ̖ͣ
void iic_stop(void)
{
SDA = 0;
delayus();
SCL = 1;
delayus();
SDA = 1;
delayus();
}
//ʼ
void iicinit(void)
{
SDA = 1;
delayus();
SCL=1;
delayus();
}
//(yng)
void respons(void)
{
uchar i=0;
SCL = 1;
delayus();
while((SDA=1)&&(i<255))
i++;
SCL = 0;
delayus();
}
//l(f)һֹ(ji)
void write_byte(uchar date)
{
uchar i,temp;
temp=date;
for(i=0;i<8;i++)
{
temp=temp<<1;
SCL = 0;
delayus();
SDA=CY;
delayus();
SCL = 1;
delayus();
}
SCL=0;
delayus();
SDA=1;
delayus();
}
//ַ(sh)(j)
void write_lcd(uchar contr1,uchar contr2,uchar date1,uchar date2)
{
iic_start();
write_byte(0x4e);
respons();
write_byte(contr1);
write_byte(contr2);
respons();
delayms(5);
write_byte(date1);
write_byte(date2);
respons();
iic_stop();
}
void lcd_init()
{
write_lcd(0x3c,0x8c,0xf8,0xf8);
write_lcd(0x0c,0xcc,0xf8,0xf8);
write_lcd(0x0c,0x6c,0xf8,0xf8);
write_lcd(0x0c,0x1c,0xf8,0xf8);
}
void main()
{
iicinit();
lcd_init();
while(1)
{
write_lcd(0xfc,0x0c,0xf8,0x08); //Ȍַ
write_lcd(0x4d,0x3d,0x48,0x38); //(sh)(j)
write_lcd(0x4d,0x4d,0x48,0x48); //(sh)(j)
write_lcd(0xad,0x0d,0xa8,0x08); //(sh)(j)
}
}
:
liumin
rg:
2013-8-7 17:29
ڰٶIICҺԭv⣡
:
α919
rg:
2013-8-7 17:34
IICӿڵķʽ
gӭR (http://www.torrancerestoration.com/bbs/)
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