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why japanese char?

 
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why japanese char?
PostPosted: Mon Apr 20, 2009 2:55 am     Reply with quote
Hai!! All. I have 2 problems

First my LCD display Japanese character. Second, My code stuck on LCD display Card Invalid when I move a card. Suppose LCd show CardNot Detected.

This is my code:

Code:
#include<16f877A.h>

#fuses HS,NOWDT,NOPROTECT,NOBROWNOUT,NOLVP

#use delay(clock=20000000)
#use rs232(baud=9600,parity=N,xmit=PIN_C6,rcv=PIN_C7,bits=8,ERRORS)
#include<flex_lcd.c>

#define cardSta PIN_B5
#define LED1 PIN_B4
#define LED2 PIN_B3

char SelectCard[4]       = {0xBA,0x02,0x01,0xB9};
int8 ctr;
char rbuff[10];

void main() {



lcd_init();
lcd_putc("\fhai!!");
delay_ms(3000);

while(1){

//****************************************************************************

   if(input(cardSta)==0) {

   lcd_putc("\fcard detected\ntry");
      output_high(LED1);
      delay_ms(500);
      output_low(LED1);
      delay_ms(500);
   for (ctr=0;ctr<4;ctr++) putc(SelectCard[ctr]); //send command SelectCard


   if(kbhit())

   for (ctr=0;ctr<10;ctr++) rbuff[ctr]=getc(); //receive 10 response bytes
   lcd_putc("\f");
   for (ctr=0;ctr<10;ctr++)
   lcd_putc(rbuff[ctr]);
   delay_ms(10000);

   if (rbuff[3]==0 && rbuff[8]==1) {
   lcd_putc("\fMifare Card "); // to show that the card accepted
 
   }
   else {

   lcd_putc("\fCard Invalid");
   break;
   }
   }

   else {

   lcd_putc("\fcardNotDetected\ntry");
      output_high(LED2);
      delay_ms(500);
      output_low(LED2);
      delay_ms(500);

   }

}
}


I seen on forum some user use this:

Quote:
#fuses HSPLL,NOWDT,NOPROTECT,NOLVP,NODEBUG,USBDIV,PLL5,CPUDIV1,VREGEN

I not understand about PLL5, CPUDIV1, VREGEN. Is it need for my code?

Suppose I receive 10 bytes respond, not a japanese character


Help pls.
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Mon Apr 20, 2009 11:47 am     Reply with quote
Post the manufacturer and part number of your LCD and your card
reader. Also post a list of the connections between the PIC and those
two devices.
ckielstra



Joined: 18 Mar 2004
Posts: 3680
Location: The Netherlands

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PostPosted: Mon Apr 20, 2009 3:03 pm     Reply with quote
Code:
   for (ctr=0;ctr<4;ctr++) putc(SelectCard[ctr]); //send command SelectCard


   if(kbhit())

   for (ctr=0;ctr<10;ctr++) rbuff[ctr]=getc(); //receive 10 response bytes
   lcd_putc("\f");
I'm not sure what you want to do here, but it is not going to work.

There is no ';' or '{' after the kbhit line which means that your code is equivalent to:
Code:
   for (ctr=0;ctr<4;ctr++) putc(SelectCard[ctr]); //send command SelectCard

   if(kbhit())
   {
      for (ctr=0;ctr<10;ctr++) rbuff[ctr]=getc(); //receive 10 response bytes
   }
   lcd_putc("\f");
The card reader must respond within a few microseconds or the kbhit test will fail and the 10 respond bytes will never be received. The baudrate is 9600 baud, or about 1ms for a byte so it is impossible to ever meet this quick response time.

Solve by removing the kbhit test, it is not needed.
Guest
PostPosted: Wed Apr 29, 2009 1:06 am     Reply with quote
I try to display this 0xBA,0x02,0x01,0xB9 four byte number to my lcd but the lcd display four character like this @#$%. The four byte number that I want to display came from char SelectCard[4] = {0xBA,0x02,0x01,0xB9}; in my code.

I'm using 16*2 lcd and compiler version 3.214

Plz help. This is my code:



Code:
#include<16f877A.h>
#fuses HS,NOWDT,NOPROTECT,NOLVP
#use delay(clock=20000000)
#use rs232(baud=9600,parity=N,xmit=PIN_C6,rcv=PIN_C7,bits=8,ERRORS)
#include<flex_lcd.c>
#define cardSta PIN_B5
#define LED1 PIN_B4
#define LED2 PIN_B3

char SelectCard[4]       = {0xBA,0x02,0x01,0xB9};
int8 ctr;

void main() {

lcd_init();
lcd_putc("\fhai!!");
delay_ms(3000);

while(1){

   if(input(cardSta)==0) {

   lcd_putc("\fcard detected");
      delay_ms(500);

   lcd_putc("\f");
   for (ctr=0;ctr<4;ctr++){
   lcd_putc(SelectCard[ctr]);
   delay_ms(1000);
   }
   }

   else {

   lcd_putc("\fcardNotDetected");
      output_high(LED2);
      delay_ms(500);
      output_low(LED2);
      delay_ms(500);

   }

}
}
Guest
PostPosted: Wed Apr 29, 2009 3:52 am     Reply with quote
I just got the solution. Only use command printf(lcd_putc,"%X",SelectCard[crt]); to replace lcd_putc(SelectCard[ctr]);
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