18f4550 and em4095 problem.

[lmercor]

hello, I'm doing a RFID reader with a 18f4550 and an EM4095 IC's.

I have done the reader with the pic16f877a an it works perfect, I add an LCD to see the tg number and it works. but the problem is that now I want to use the PIC18F4550 but it doesn't work and I dont know why, at first I thought that the problem were the fuses so I jus made a program to test the LCD but works fine, and then I put my program into the PIC4550 and I can't make it work, I dont know why, but I can'a saw anything in the lcd.

I really don't know what my problem is, as I said before, I thought it were the fuses but with a test program i realize it weren't. byt the way rigth now I'm not using the USB I tried with a 4MHz and 20Mhz cristal and I get the same response... nothing.

please a little help with this.
Thanks

[lmercor]

#include <18F4550.h>
#fuses HS, NOWDT, PUT, BROWNOUT, NOLVP
#use delay(clock=20000000)

#define use_portd_lcd TRUE
#define LCD_DATA_PORT portd
#define LCD_TYPE 2
#define LCD_TRIS_LOCATION trisd

#include <lcd.c>
#include <em4095.c>
#include <em4102.c>

void main(void) {
int8 code[5];
int32 tagNum;
int8 customerCode;
int8 i, j;
int8 dato_org;

rf_init();
rf_powerUp();
lcd_init();

while(TRUE) {

if(read_4102(code)) //read the code
{
for (i=0; i<5; i++) {
dato_org = code[i];
code[i] = 0;
for (j=0; j<8>>(j)) & 0x01);
if(j<=6) {
code[i] <<= 1;
}
}
}
tagNum = make32(code[1],code[2],code[3],code[4]);
customerCode = code[0];
printf(lcd_putc,"\fNo: %x%lx", customerCode, tagNum);
}
}
}


I think the problem could be with the interrups.

[PCM programmer]

[Guest]