PIC18F458 LCD测试没有成功

你好，我有一个PIC 18F45和LCD的简单应用程序。我写了一个简单的程序来测试LCD，但是没有成功。LCD没有显示任何东西。我用ARDUNO测试屏幕和PCB（把电缆放在PIC插座中），它们工作得很好。我不知道有什么问题。谢谢。RD2X位的CDYRS；RD5X位的SCD-LCDYAN；RD1X位的SCD-LCDYD4；RD3X位上的SCD-LCDYD5；RD6L位的S比特LCDYD6；RD7L位的S比特LCDY7 D7；在锁存2BIT上的S比特LCDyRSX方向；在LATD5L位上的S比特LCDYNEX方向；在LATD1位上的SIT LCDY4D4方向；在LATD3L位上的SIT LCDY5D5方向；SIT LCDY-D6I代码：sBIT在LATD6L位的方向；StidLCD7d7方向在LaDd7BIT；空隙主体（）{ASM MOVLW 0x07///ASK MOVWF CMON//启用引脚，用于数字I/OASM CLRF PoLTASM CLRF LATDASM MOVLW 0x00 ASM MOVWF TrISDelayyMS（20）；/初始化LCDLCDyCMD（Y-LCD-CULL）；//清除DISPLAYLCDCMUD（/）[LCDC*CursRayOff]；//游标OffCDyOUT（1,1，“aldin”）；LCDIOUT（2，1，“aldin”）；TrIS.F4＝0；而（1）{LCDIOUT（1，1，ALADIN）；}}



      以下为原文

    Hi,
I have a simple application with a pic 18F458 and an LCD.
I wrote a simple program to test the LCD, but without success.
The LCD don't show anything.
I test the screen and the PCB with an arduino (putting the cables in the pic socket) and they work perfectly.
I dont know what is the problem.
Thanks.


The Code :

***it LCD_RS at RD2_bit;
***it LCD_EN at RD5_bit;
***it LCD_D4 at RD1_bit;
***it LCD_D5 at RD3_bit;
***it LCD_D6 at RD6_bit;
***it LCD_D7 at RD7_bit;

***it LCD_RS_Direction at LATD2_bit;
***it LCD_EN_Direction at LATD5_bit;
***it LCD_D4_Direction at LATD1_bit;
***it LCD_D5_Direction at LATD3_bit;
***it LCD_D6_Direction at LATD6_bit;
***it LCD_D7_Direction at LATD7_bit;


void main() {

asm MOVLW 0x07 //Turn Comparator off and
asm MOVWF CMCON //Enable pins for digital I/O
asm CLRF PORTD
asm CLRF LATD
asm MOVLW 0x00
asm MOVWF TRISD


delay_ms(20);
Lcd_Init(); // Initialize LCD

Lcd_Cmd(_LCD_CLEAR); // Clear display
Lcd_Cmd(_LCD_CURSOR_OFF); // Cursor off
lcd_out(1,1,"ALADIN");
lcd_out(2,1,"ALADIN") ;
TRISE.F4=0;

while (1){
lcd_out(1,1,"ALADIN");
}
}