一个12864屏，不知如何辨认脚位，只有9根线。-第4页回答

1楼-- · 2020-02-07 01:42

我有一块 wgm-12864cog-41 ,点亮了.
/*===========================================================================
Filename: CP_LCD.C
Version : 2005-1-21
Note : WGM-12864COG-41 V3.0驱动程序
Hardware: XTAL=7.158MHz(3.579MHz倍频)
============================================================================*/

/*============================================================================
; WGM-12864COG-41 VER2.0 serial LCD dirver program
; author zhaofei,modification date 04-3-23
; copyright ningbo land communicatins equipment co.,ltd,2004-03
=============================================================================*/
#define LCD_GLOBAL
#include <stdarg.h>
#include  "..incDotlib.h"
#include  "..incconfig.h"

////0123456789012345
uint8 code EmptyTable[] = "             ";
void Delay1us(uint8 n)
{
while(n--)
{
_nop_();
}
}
/*================================================================================
; func data serial out
; intern function
; call no
; called  InitialLCD() InitialLCD1() ClearLCD()  putHZ()  PutASCII()
; modification author zhaofei modification date 04-03-11
=================================================================================*/
void lcd_wr(uint8 ComDatFlag,uint8 OutData)
{
uint8 j;
if(ComDatFlag)
{
      LCDA0 = 1;
}
else
{
LCDA0 = 0;
}

for(j=0;j<8;j++)
{
      LCDSCL = 0;
//Delay1us(1);
_nop_();

if((OutData&0x80)==0x80)
         LCDSDA = 1;
else
LCDSDA = 0;
//Delay1us(1);
_nop_();
OutData<<=1;
      LCDSCL = 1;
//Delay1us(2);
_nop_();
_nop_();
}
}

//void OpenLcdBackLight(void)
//{
// //Clr_Pin_X(PIN1,LEDON); //低电平点亮背光
// LEDON = 1;
// LcdBackLightOpenTime = LCD_BLIGHT_OPEN_TIME;
//}
//
//void CloseLcdBackLight(void)
//{
// //Set_Pin_X(PIN1,LEDON);
// LEDON = 0;
//}

void init_LCD(void)
{

LCDCS = 1;
// LCDRST = 1;
LCDA0 = 0;
LCDSCL = 1;
LCDSDA = 0;
OpenLcdBackLight();
//Clr_Pin_X(PIN1,LEDON);
// LcdBackLightOpenTime = 0xffff;

Delay1us(5);
// LCDRST = 0;
// Delay1ms(10);
// LCDRST = 1;
// Delay1ms(10);

LCDCS = 0;
// Delay10ms(1);
lcd_wr(LCD_COMMAND,0xA2); //置液晶显示驱动偏压比D0=0=1/9
lcd_wr(LCD_COMMAND,0xA0); //显示缓冲区地址与段输出对应关系D0=0=正常 =1=按Y轴反向//a0//a1
lcd_wr(LCD_COMMAND,0xC8); //置公共端输出扫描方向D3=0=正常 =1=按X轴反向 //c0//c

lcd_wr(LCD_COMMAND,0x2F); //打开供电电源
Delay1ms(5);

lcd_wr(LCD_COMMAND,0x25);// v5:Rb/Ra,20-27粗调，越小越淡
Delay1ms(5);

lcd_wr(LCD_COMMAND,0x81); //BIT2-BIT0=V5电压调节,选择内部电阻比例//25//23
ReadBytesFMEEPROM(LCDCONTRAST_Adds,1);
    lcd_wr(LCD_COMMAND,EEPROMDataBuf[0]); //uLCDContrast); //V5=1,微调，越小越淡0-3f 0x30
    Delay1ms(10);

lcd_wr(LCD_COMMAND,0xA4); //D0=0=正常显示/D0=1=全亮
lcd_wr(LCD_COMMAND,0xA6); //正显
lcd_wr(LCD_COMMAND,0xAF); //液晶显示开/关D0=1=开

lcd_wr(LCD_COMMAND,0x60); //GO 33 LINE
Delay1ms(5);
LCDCS = 1;

Delay1ms(5);

}

void SetLCDContrast( uchar n) //设置对比度
{

LCDCS = 1;
// LCDRST = 1;

Delay1us(5);
// LCDRST = 0;
// Delay1ms(10);
// LCDRST = 1;
// Delay1ms(10);
LCDCS = 0;
Delay1ms(10);
lcd_wr(LCD_COMMAND,0x81); //BIT2-BIT0=V5电压调节,选择内部电阻比例//25//23
if(n>0x3f) n = uLCDContrast;
lcd_wr(LCD_COMMAND,n); //V5=1,微调，越小越淡0-3f 0x30
Delay1ms(5);
LCDCS = 1;
Delay1ms(10);
}

void putASCII( int8 chASC, uint8 reserve )
{
/*该函数用来显示一个ASCII码字符*/
uint8 i;
uint16 ASC_index, MAXLEN;

if ( chASC == ' ' )
{
chCursorSiteNow_X = 0;
chCursorSiteNow_Y += 16;
if ( chCursorSiteNow_Y > Y_SIZE - 1 )
{
chCursorSiteNow_Y = 0;
}
return;
}

if ( chCursorSiteNow_X + 8 > X_SIZE )    //如果剩下的位置不够显示一个ASCII码字符，则换行
{
chCursorSiteNow_X = 0;
chCursorSiteNow_Y += 16;
if ( chCursorSiteNow_Y > Y_SIZE - 1 )
{
chCursorSiteNow_Y = 0;
}
}

MAXLEN = sizeof( ASCIITAB ) / sizeof( lattice8_16 );
for ( ASC_index = 0; ASC_index < MAXLEN; ++ASC_index )
{
if ( ASCIITAB[ ASC_index ].index[0] == chASC )
break;
}

if ( ASC_index < MAXLEN )
{
      LCDCS = 0;

set_address( chCursorSiteNow_X, chCursorSiteNow_Y );

if ( reserve )
{
for ( i = 0; i < 8; i++ )
{
lcd_wr( LCD_DATA, ASCIITAB[ ASC_index ].TABLE[ i ]^0xff );
}
}
else
{
for ( i = 0; i < 8; i++ )
{
lcd_wr( LCD_DATA, ASCIITAB[ ASC_index ].TABLE[ i ] );
}
}

set_address( chCursorSiteNow_X, chCursorSiteNow_Y + 8 );

if ( reserve )
{
for ( i = 0; i < 8; i++, chCursorSiteNow_X++ )
{
lcd_wr( LCD_DATA, ASCIITAB[ ASC_index ].TABLE[ i + 8 ]^0xff );
}
}
else
{
for ( i = 0; i < 8; i++, chCursorSiteNow_X++ )
{
lcd_wr( LCD_DATA, ASCIITAB[ ASC_index ].TABLE[ i + 8 ] );
}
}

      LCDCS = 1;
}
}

void putHZ( uint8 *str, uint8 reserve )
{
/*该函数用来显示一个汉字*/
uint8 iHZ_GB2312[ 2 ];
uint16  hz_index, MAXLEN;
uint8  i;

MAXLEN = sizeof( HZTAB ) / sizeo