RA7和6在PIC18F25K42中没有响应

嗨，伙计们，我不能让RA7和RA6作为并行输出来响应。我已经把我的程序写在几乎没有任何试图解决故障。我已经通过数据表好几次了，实际上使用代码海峡来初始化端口。我还尝试了几个芯片来验证它不是PIC本身。以下是我的代码：有什么想法吗？---------------------------------------------------ST.O.H.G.L.Stdlb. H. & Gt；包括“LCDPLAY.H”空主（空隙）{TrISC= 0x00；TrISB= 0xF0；TrISA＝0xFF；ANSELLA＝0；ANSELB＝0；ANSELC＝0；ASM（“Bangel-Pura”）；ASM（-------------------“CLRF PATA”；ASM（“BANSEL LATA”）；ASM（“CLRF LATA”）；ASM（“BANSSEL ANSELA”）；ASM（“CLRF ANSELA”）；ASM（“BANCSEL TrISA”）；ASM（“MOVLW 11111111”）；ASM（“MOVWF TrISA”）；而（1）{PtCc= PoTa；} / /端，同时/ / /结束主



      以下为原文

    Hi Guys,

I cannot get RA7 and RA6 to respond as parallel output. I've got my program written to almost nothing in attempts to the troubleshoot. I've been through the datasheet several times and actually use code strait from it to initialize the ports. I've also tried programming several chips to verify it's not the pic itself. Here is my code: any ideas?

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#include
#include
#include "LCDPlay.h"
void main(void)
{
     TRISC = 0x00;
     TRISB = 0xF0;
     TRISA = 0xFF;
     ANSELA = 0;
     ANSELB = 0;
     ANSELC = 0;
     asm("BANKSEL PORTA");
     asm("CLRF PORTA");
     asm("BANKSEL LATA");
     asm("CLRF LATA");
     asm("BANKSEL ANSELA");
     asm("CLRF ANSELA");
     asm("BANKSEL TRISA");
     asm("MOVLW 11111111");
     asm("MOVWF TRISA");

     while(1)
     {
          PORTC = PORTA;
     } //end while
} //end main

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