模块LM12864FBC-1
这块液晶的引脚为
1--CS1
2--CS2
3--GND
4--VCC
5--V0
6--D/I（RS）
7--R/W
8--EN
9~16--D0~D7
17--BLA
18--BLK
19--NC
20--Vout
奇怪没有RST复位引脚，说明书上面Vout和VCC接一个25K的电位器分压给V0调对比度即可，对比度是可以调整了
想做一个驱动显示几个汉字
程序如下:
#include <hidef.h> /* common defines and macros */
#include <6812a64.h> /* derivative information */
#include "my_vectors.h"
#include "main_asm.h" /* interface to my assembly module */
///////////接口相关宏定义///////////////////
#define CS1 PTT_PTT0 //块1 左边
#define CS2 PTT_PTT1 //块2 右边
#define D_I PTT_PTT2 //A0为1时是数据，0时为指令数据
#define R_W PTT_PTT3 //为1时是读，为0时是写
#define E PTT_PTT4 //允许装载数据
#define DATA PORTB //数据
//////////////////////////////////////
#pragma CODE_SEG __NEAR_SEG NON_BANKED /* Interrupt section for this module. Placement will be in NON_BANKED area. */
//interrupt void RTI_ISR(void) { /* simple RTI interrupt service routine */
/* clear RTIF bit */
// static i=0;
//闪烁小灯，每隔400ms闪烁一次
// i++;
// if(i>100){PTT_PTT5=~PTT_PTT5;PORTA_BIT0=PTT_PTT5;PORTA_BIT2=~PORTA_BIT0;i=0; }
// CRG**_RTIF=1;
//CRG** = 0x80;
//}
#pragma CODE_SEG DEFAULT
static void RTIInit(void) {
/* setup of the RTI interrupt frequency */
/* adjusted to get 1 millisecond (1.024 ms) with 16 MHz oscillator */
/*--------锁相环初始化-------*/
CLKSEL=0x00; //disable pll;
PLLCTL=0xe1; //CLOCK MONITOR=ON,PLL=ON,AUTO SELECT,是默认设置
SYNR=14;REFDV=2; //bus clock =20M
PLLCTL=0x60; //自动锁定
asm NOP;asm NOP;asm NOP;
while(!CRG**_LOCK);
CLKSEL=0x80; //pll start
RTICTL = 0x1F; /* set RTI prescaler */
// CRGINT_RTIE=1; //允许RTI中断
asm CLI;
//CRGINT = 0x80; /* enable RTI interrupts */
DDRT_DDRT5=1;
DDRA_BIT0=1;
DDRA_BIT2=1;
RDRT=0xff;
RDRIV=0x93;
DDRB=0xff; ////PORTB为输出引脚
DDRT=0xff; ////PORT T 为输出引脚
}
/*忙判别*/
void lcd_busy(void) {DDRB_BIT7=0;
D_I=0;R_W=1;
while(1){E=1;_asm nop;
if(!PORTB_BIT7)break;}
E=0;DDRB_BIT7=1;
}
/*设置xy*/
void set_xy(unsigned char x,unsigned char y) {
if (x>=64) {CS1=0;CS2=1;} else {CS2=0;CS1=1;}
lcd_busy();
E=1;D_I=0;R_W=0;PORTB=0x40|x;E=0;
lcd_busy();
E=1;D_I=0;R_W=0;PORTB=0xb8|y;E=0;
}
void lw(unsigned char x,unsigned char y,unsigned char dd) {
set_xy(x,y);
lcd_busy();E=1;D_I=1;R_W=0;PORTB=dd;E=0;
}
/*显示初始化*/
void lcd_init(void) {
unsigned char x,y;
/*开显示*/
E=1;D_I=0;R_W=0;PORTB=0x3f;E=0;
for (y=0;y<8;y++) {
for (x=0;x<128;x++) lw(x,y,0x00); //清空屏幕
}
}
void Lcd_off(void){
E=1;D_I=0;R_W=0;PORTB=0x3e;E=0;
}
/*汉字点阵的提取：采用软件"字模提取软件"，读法：先读前8行，黑点处为1，依次读完这16列，然后读后8行，依次再读完16列。*/
unsigned char hz[]={
/*汉字：一 */
//0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0xc0,0x80,0x00,
//0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,
0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x03,0x00,0x01,0x00,0x00,0x00,
/*汉字：倪*/
//0x80,0x40,0xf0,0x0f,0x02,0x00,0xfe,0x92,0x92,0x81,0x91,0x92,0x92,0xfe,0x00,0x00,
//0x00,0x00,0x7f,0x00,0x40,0x20,0x11,0x0c,0x03,0x00,0x3f,0x40,0x40,0x41,0x78,0x00,
0x01,0x00,0x02,0x00,0x0F,0xFE,0xF0,0x00,0x40,0x02,0x00,0x04,0x7F,0x88,0x49,0x30,
0x49,0xC0,0x81,0x00,0x89,0xFC,0x49,0x02,0x49,0x02,0x7F,0x82,0x00,0x1E,0x00,0x00,
/*汉字：水*/
//0x00,0x10,0x10,0x10,0x90,0x70,0x00,0xff,0x20,0x60,0x90,0x08,0x04,0x00,0x00,0x00,
//0x10,0x10,0x08,0x06,0x01,0x40,0x80,0x7f,0x00,0x00,0x01,0x06,0x0c,0x18,0x08,0x00,
0x00,0x08,0x08,0x08,0x08,0x10,0x08,0x60,0x09,0x80,0x0E,0x02,0x00,0x01,0xFF,0xFE,
0x04,0x00,0x06,0x00,0x09,0x80,0x10,0x60,0x20,0x30,0x00,0x18,0x00,0x10,0x00,0x00,
/*汉字：好*/
//0x10,0x10,0xf0,0x1f,0x10,0xf0,0x80,0x82,0x82,0x82,0xf2,0x8a,0x86,0x82,0x80,0x00,
//0x80,0x43,0x22,0x14,0x0c,0x73,0x20,0x00,0x40,0x80,0x7f,0x00,0x00,0x00,0x00,0x00,
0x08,0x01,0x08,0xC2,0x0F,0x44,0xF8,0x28,0x08,0x30,0x0F,0xCE,0x01,0x04,0x41,0x00,
0x41,0x02,0x41,0x01,0x4F,0xFE,0x51,0x00,0x61,0x00,0x41,0x00,0x01,0x00,0x00,0x00,
/*汉字：人*/
//0x00,0x00,0x00,0x00,0x00,0x00,0xc0,0x3f,0xc2,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
//0x00,0x40,0x20,0x10,0x0c,0x03,0x00,0x00,0x01,0x06,0x0c,0x18,0x30,0x60,0x20,0x00
0x00,0x00,0x00,0x02,0x00,0x04,0x00,0x08,0x00,0x30,0x00,0xC0,0x03,0x00,0xFC,0x00,
0x43,0x80,0x00,0x60,0x00,0x30,0x00,0x18,0x00,0x0C,0x00,0x06,0x00,0x04,0x00,0x00
};
/*显示汉字，注意本函数参数 x 为屏幕横着的坐标(范围从0~128)，y为屏幕纵向的坐标(范围为0~8），n为要显示数足hz[]中的第几个字符
注意：由于本例显示的是16*16点阵，所以第一个字符占据横着16个点，纵向16个点，也就是纵向2页，所以下一个字符应该从第2页开始，再下一个从第4页开始
如主程序中调用的dh(0,0,0); dh(0,2,1); dh(0,4,2); */
void dh(unsigned char x,unsigned char y,unsigned char n) {
unsigned char i,dd;
for (i=0;i<16;i++) {
dd=hz[i+n*32];
lw(x+i,y,dd);
dd=hz[i+n*32+16];
lw(x+i,y+1,dd);
}
}
void main(void) {
RTIInit();
/* put your own code here */
EnableInterrupts;
asm_main();
lcd_init();
dh(0,0,0); //在横向0，纵向0页处显示汉字 "一"
dh(0,2,1); //在横向0，纵向第2页处显示汉字 "倪"
dh(0,4,2); //在横向0，纵向第四页处显示汉字 "水"
dh(18,0,3); //在横向第18点，纵向0页处显示汉字 "好"
dh(18,2,4);
//Lcd_off();
for(;;); /* wait forever */
}
抱歉这个程序其本是网上得到的,在这谢谢网友们的无私贡献!!
各位有谁做过这块液晶的驱动的,能否给个程序参考以下
QQ:89590025
MSN:canon_me@hotmail.com |
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