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Pic16f628 hyperterminal connection

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Moderators: Ajay, Junied , abbas1707, Arun Kumar V, pdi33, Shailesh NAYAK, ۞ TPS ۞, shyam, sashijoseph

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Ajay

Tue Mar 18 2008, 12:35PM

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your connections are not seem to be fine..

plz post your circuit cannot understand what are you saying..
and yes you need max232 for connecting PIC to PC.

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turker1

Tue Mar 18 2008, 12:50PM

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circuit in attach.
i did as circuit. but with my code (i gave it) it doesnt work.
sometimes some character comes. but characters > $%&
i want to send only "1".

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Ajay

Tue Mar 18 2008, 01:08PM

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what is crystal frequency you are using? and baud?

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turker1

Tue Mar 18 2008, 01:11PM

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i selected intrc. 4 mhz and my c program too. and i tried 9600. but nothing happened. then i select 2400 only hyperterminal. some different characters came.
i used for loop. so it must come every loop. but that characters comes sometimes.and isnt "1"

[ Edited Tue Mar 18 2008, 01:12PM ]

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shyam

Tue Mar 18 2008, 10:08PM

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r u using CCS PCM compiler?? the cod eseems that way...
while burning to the chip did u check the correct configuration... ??
i mean oscillator type and WD..

your problem can be due to enabled watch dog or wrong choice of oscillator...

lProgress is not made by early risers or hard workers, but by LAZY people, trying to find easier ways to do the same........

turker1

Wed Mar 19 2008, 06:06AM

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i selected intrc clkout. wihch setting i must enable?
wdt,mclr, etc.

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turker1

Wed Mar 19 2008, 07:05AM

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and i connected lcd.but in lcd screen (2x16) there are 16 small box. the program and connection true.my program:

CODE:

#if defined(__PCM__)

#include <16F628.h>

#use delay(clock=4000000)

#define use_portb_lcd TRUE //lcd bilgisi için port b'yi kullanıyoruz

#include <LCD.C>

int tamsayi=1; // tamsayi adında tamsayı tipinde bir değişken tanımlıyoruz ve değerini 1 olarak başlangıçta veriyoruz.

void main()

{

   lcd_init(); //lcd ekranımızı kuruyoruz

   printf(lcd_putc,”Cevizimiz:\n%d”,tamsayi); //Ekrana “Cevizimiz:” yazar ve alt satıra giderek sonuc değişkenini yazar.

   bas:

   goto bas;

}