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这是12864的程序，它定义的引脚是PC8,PC7,PC6,PC9，我想修改成PF1,PF2,PF3,PF4改以后12864就不能显示字符了
我是在.h文件中修改的，是不是还需要修改其他地方？
[mw_shl_code=c,true]/*LCD 12864*/
#define RS_H PFout(1)=1 //RS=1 4PIN
#define RS_L PFout(1)=0 //RS=0
#define RW_H PFout(2)=1 //RW=1 5PIN
#define RW_L PFout(2)=0 //RW = 0
#define EN_H PFout(3)=1 //EN = 1 6PIN
#define EN_L PFout(3)=0 //EN = 0
#define RESET_L PFout(4)=0
#define RESET_H PFout(4)=1
#define RW_READ PFout(1)[/mw_shl_code]
以下是原来的.h文件，按照它定义的引脚是能够显示字符的。
[mw_shl_code=c,true]#ifndef __LCD12864_H
#define __LCD12864_H
#include "sys.h"
#include "delay.h"
/*LCD 12864*/
#define RS_H PCout(8)=1 //RS=1 4PIN
#define RS_L PCout(8)=0 //RS=0
#define RW_H PCout(7)=1 //RW=1 5PIN
#define RW_L PCout(7)=0 //RW = 0
#define EN_H PCout(6)=1 //EN = 1 6PIN
#define EN_L PCout(6)=0 //EN = 0
#define RESET_L PCout(9)=0
#define RESET_H PCout(9)=1
#define RW_READ PCout(7)
void initLCD12864(void);
void displayString(unsigned char row,unsigned char col,char *ptr);
void clearLcdTxt(void);
void clearLcd(void);
void dispBlack(void);
void writeWhiteLine(unsigned char line);
#endif
[/mw_shl_code]
下面的是.c的
[mw_shl_code=c,true]#include "lcd12864.h"
unsigned char whiteLine=0;
unsigned char TABLE[]={
0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,
0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,
0x88,0x89,0x8a,0x8b,0x8c,0x8d,0x8e,0x8f,
0x98,0x99,0x9a,0x9b,0x9c,0x9d,0x9e,0x9f};
//′®DDÄ￡ê½ ·￠Ëíò»×Ö½úêy¾Y
void sendByte(unsigned char data)
{
unsigned char i;
for(i=0;i<8;i++)
{
EN_L;
if(data&0x80)RW_H;
else RW_L;
delay_us(2);
EN_H;
data=data<<1;
delay_us(2);
}
}
//D′¿ØÖÆÃüáî
void sendCMD(unsigned char cmd)
{
RS_H;
//delay_us(100);
sendByte(0xF8);
sendByte(cmd&0xF0);
sendByte((cmd&0x0F)<<4);
RS_L;
//delay_us(100);
}
//D′êy¾YÃüáî
void sendData(unsigned char data)
{
RS_H;
//delay_us(100);
sendByte(0xFA);
sendByte(data&0xF0);
sendByte((data&0x0F)<<4);
RS_L;
//delay_us(100);
}
//′óLCD½óêÕò»¸öêy¾Y
unsigned char receiveByte(void)
{
unsigned char i,temp1=0,temp2=0;
for(i=0;i<8;i++)
{
temp1=temp1<<1;
EN_L;
delay_us(10);
EN_H;
delay_us(10);
EN_L;
if(RW_READ)temp1++;
}
for(i=0;i<8;i++)
{
temp2=temp2<<1;
EN_L;
delay_us(10);
EN_H;
delay_us(10);
EN_L;
if(RW_READ)temp2++;
}
return ((temp1&0xF0)+(temp2&0x0F));
}
//¼ì2éÃ|±êÖ¾
void checkBusy(void)
{
do sendByte(0xFC);
while(0x80&receiveByte());
}
//ÏÔê¾ò»¸ö×Ö·û′®μ½Ö¸¶¨Î»ÖÃ
void displayString(unsigned char row,unsigned char col,char *ptr)
{
sendCMD(TABLE[8*row+col]);
while(*ptr != '\0')
{
sendData(*ptr++);
}
}
//·′°×֮ǰÏèÇå»æí¼′æ′￠Çø
void dispBlack(void)
{
unsigned char i,j;
sendCMD(0x34);
for(i=0;i<32;i++)
{
//checkBusy();
sendCMD(0x80+i);
sendCMD(0x80);
for(j=0;j<16;j++) sendData(0x00);
}
for(i=0;i<32;i++)
{
sendCMD(0x80+i);
sendCMD(0x88);
for(j=0;j<16;j++) sendData(0x00);
}
sendCMD(0x34);
}
//·′°×μúYDDμÄμúX¸öμ½end_x¸ö×Ö·û
void writeWhite(unsigned char CX,unsigned char CY,unsigned char width,unsigned char YN,unsigned char f)
{
unsigned char halfLineCnt,basicBlock,lcdPosX,lcdPosY;
if (f==1)dispBlack();
lcdPosY=0x80;
if (CX == 0)
{
CX=0x80;
halfLineCnt=16;
}
else if (CX ==1)
{
CX=0x80;
halfLineCnt =32;
}
else if (CX ==2)
{
CX=0x88;
halfLineCnt =16;
}
else if (CX == 3)
{
CX=0x88;
halfLineCnt =32;
}
lcdPosX=CX+CY;
for(;halfLineCnt !=0;halfLineCnt--)
{
basicBlock=width;
sendCMD(0x34);
sendCMD(lcdPosY);
sendCMD(lcdPosX);
sendCMD(0x30);
for(;basicBlock !=0;basicBlock--)
{
if(halfLineCnt>16)
{
sendData(0x00);
}
else
{
if(YN==1)sendData(0xFF);
else sendData(0x00);
}
}
lcdPosY++;
}
sendCMD(0X36);
sendCMD(0x30);
}
//·′°×ÏÔê¾μúxDD
void writeWhiteLine(unsigned char line)
{
if(line==0)
{
if (line != whiteLine)
{
writeWhite(whiteLine,0,16,0,1);
whiteLine = line;
}
}else
{
if (line != whiteLine)
{
writeWhite(line-1,0,16,1,1);
whiteLine = line;
}
}
}
void clearLcd(void)
{
clearLcdTxt();
writeWhiteLine(0);
}
//ÇåÆátxt
void clearLcdTxt(void)
{
unsigned char i;
sendCMD(0x30);
sendCMD(0x80);
for(i=0;i<64;i++)sendData(0x20);
}
//ÇåÆáBMP
void clearLcdBMP(void)
{
unsigned char i,j;
sendCMD(0x34);
sendCMD(0x36);
for(i=0;i<32;i++)
{
sendCMD(0x80|i);
sendCMD(0x80);
for(j=0;j<32;j++)sendData(0x00);
}
}
void initLCD12864(void)
{
RS_L;
RESET_L;
delay_ms(100);
RESET_H;
delay_ms(20);
sendCMD(0x30);
sendCMD(0x0C);
sendCMD(0x01);
sendCMD(0x02);
sendCMD(0x80);
}
[/mw_shl_code]
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发表于 2018-9-5 15:43:01
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