Dear Pic List members

I want to hear from someone if there are know problems relate to C compiler,
demo version and final version of MPLAB-C18.

I have a lot of trouble to compile some programs in my new project using
on PIC 18C452 and a demo compiler from Microchip, MPLAB-C18, last demo
version, together with a MPLAB 5.11.02.

What happens?
If I compile a program for example using

PORTDbits.RD0 = 1; to set bit 0 of PORTD it does not work and also dont
give any error in compilation time.
if I use PORTD = 0; it work only and only in small programs like test
programs.

If I read from A/D and send it to USART in a small piece of code,
everithings looks fine, but if I join code with more rotines where
program can be a little large, it stop to work well.

I feel that the compiler does not work well to programs with 100 lines of
code or more.
I am not sure, but in some pages at forum in Microchip there are some
comments that a demo version of compiler does not compile identical at the
full version and also that large programs can not run well

I attached a code that are not working, so I will be glad with your help

Thanks

Elton Spode


EXAMPLE 1 - Code does not work. PORTD does nothing. Also A/D and USART does
not work

/************************************************
EXAMPLE 1
/************************************************
void main(void)
{
 // setup

 ClosePORTB();  // Disabilita pull-ups e interrupcoes
 INTCON = 0;  // Desabilita interrupcoes
 PORTB = 0;  // Clear PORTB output data latches
 PORTC = 0;   // Clear PORTC output data latches
 PORTD = 0;   // Clear PORTD output data latches
 PORTE = 0x00;   // Clear PORTE output data latches
 TRISD = 0;   // PORTD all outputs.


 file://open ad
 OpenADC(ADC_FOSC_16&ADC_RIGHT_JUST&ADC_8ANA_0REF,ADC_CH0 & ADC_INT_OFF);

 file://open usart
 OpenUSART(USART_TX_INT_OFF & USART_RX_INT_OFF & USART_ASYNCH_MODE &
   USART_EIGHT_BIT & USART_CONT_RX & USART_BRGH_LOW, 12);


 esc = 0;
 m = 0;
 smin = 10;
 smax = 1000;


 // Apaga LEDS
 LED = 0;
 PORTD = 0xFF;
 PORTD = 0b11111110;
 Delay100();
 PORTD = 0b11111100;
 Delay100();
 PORTD = 0b11111000;
 Delay100();
 PORTD = 0b11110000;
 Delay100();
 PORTD = 0b11100000;
 Delay100();
....
....

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






/************************************************
EXAMPLE 2 - Execute de Loop for, but never go outside the loop. it runs like
forever inside of for.
                      Now the A/D, USART and PORTD work well, but never and
loop for {....}

{
 // setup

 ClosePORTB();  // Disabilita pull-ups e interrupcoes
 INTCON = 0;  // Desabilita interrupcoes
 PORTB = 0;  // Clear PORTB output data latches
 PORTC = 0;   // Clear PORTC output data latches
 PORTD = 0;   // Clear PORTD output data latches
 PORTE = 0x00;   // Clear PORTE output data latches
 TRISD = 0;   // PORTD all outputs.


 file://open ad
 OpenADC(ADC_FOSC_16&ADC_RIGHT_JUST&ADC_8ANA_0REF,ADC_CH0 & ADC_INT_OFF);

 file://open usart
 OpenUSART(USART_TX_INT_OFF & USART_RX_INT_OFF & USART_ASYNCH_MODE &
   USART_EIGHT_BIT & USART_CONT_RX & USART_BRGH_LOW, 12);

 for (i=0; i<100; i++)
 {
  Delay10TCYx(5); // Delay for 50TCY
  ConvertADC(); // Start Conversion
  while(BusyADC()); // Done Converting?
  result = ReadADC(); // read result
  itoa(result,str); // convert to string
  while (BusyUSART());
  putsUSART(str);  // Write string to USART
  PORTD = ADRESL;
 }


 esc = 0;
 m = 0;
 smin = 10;
 smax = 1000;



.....
.....
.....
/*****************************************************


----------------------------------------------------------------------------
-----------------------------
www.onshop.com.br - O Seu Shopping Virtual - Compre e Venda pela Internet
com Facilidade
www.dominiolivre.com.br - Registre o seu dominio, preserve a sua marca na
internet.
www.espocomp.com.br - A sua loja de informatica na internet.
www.exposhop.net - O site que cria a sua loja virtual
----------------------------------------------------------------------------
---------------------------

--
http://www.piclist.com hint: PICList Posts must start with ONE topic:
"[PIC]:","[SX]:","[AVR]:" =uP ONLY! "[EE]:","[OT]:" =Other "[BUY]:","[AD]:" =Ads