help with internal oscilator on PIC16F628

[esorato]

Hi guys

I�m new in this group and I�m having a trouble with internal oscilator.
I did the test program bellow:

//teste.c
#include "C:\temp\ODO\teste.h"

#define testepin PIN_A0 // Move asento para cima

void main()
{

port_b_pullups(TRUE);
setup_timer_0(RTCC_INTERNAL|RTCC_DIV_1);
setup_timer_1(T1_DISABLED);
setup_timer_2(T2_DISABLED,0,1);
setup_comparator(NC_NC_NC_NC);
setup_vref(FALSE);

while(true)
{

delay_ms (10); // delay antes de ler o dado
output_low(testepin);
delay_ms (10); // delay antes de ler o dado
output_high(testepin);
}

}

//teste.h
#include <16F628.h>
#fuses NOWDT,INTRC_IO, PUT, NOPROTECT, BROWNOUT, MCLR, LVP, NOCPD
#use delay(clock=4000000)


I expected that testepin changes is state every 10ms but nothing happens.

I�m suspecting of internal oscilator programming but I�m not sure.

Someone could help me ?

thank�s

Edson

[asmallri]

Depending on your circuit, you may need to change LVP to NOLVP. You may also need to disable the analog input on A0 (I have not looked at the datasheet for this processor).
_________________
Regards, Andrew

http://www.brushelectronics.com/software
Home of Ethernet, SD card and Encrypted Serial Bootloaders for PICs!!

[esorato]

Thank�s

I�m programming with PicStart Plus (stand alone not in circuit).
I�m using the configuration bits of MPLAB to program and I�m enabling Low voltage Program.

Regarding the configuration of A0: If I use the project wizard and configure the port to output I�m not disabling analog input ???

Edson

[asmallri]

[esorato]

OK.
Thank�s. I�ll try this.

[esorato]

Hi,
It worked.
But it�s strange because when I use CC5x itsn�t necessary change to no low voltage program.
Anyway... it�s working.
Tank�s

Edson