blinking stops

[lerameur]

there is a 12v battery to the breadboard, and a LM7805 regulating the circuit at 5.0 volt. 4 Mhz oscillator with 22pf cap.s

Like i says it does work fine with the *.jal program I found at http://www.voti.nl/blink/code/b818-2.jal

but my program do not work for more then 10- to 20 seconds

ken

[lerameur]

I have to add, if I unplug the power and wait like 5 minutes, then i get another series of 30 seconds blinking.
If I just unhook the battery for a few seconds and put back the power, then it just barely flash and shut off.
It seems some sort of memory is being unloaded and no power and filled up when it is activated.
I has to do with the program , because it is working fine with the jal version


k

[ErnieM]

Interesting problem. Same code 2 different compilers, 2 diffrent results.

Here's something to look at: Fire up MPLAB, select the device type to match your PIC, then import the hex code for each version in turn.

See if there are any differences in the config bits.

[lerameur]

Actually the Jal version I used his hex file. it is programmed in jal. I am trying to programin basic and it do not work.
Another interesting fact, I just used MikroC with this program:
(I adjusted Mikroc to my pic chip and at 4 Mhz)

void main() {
PORTB = 0;
TRISB = 0;

while(1) {
PORTB = ~PORTB;
Delay_ms(500);
}
}

it did work for a few minutes, i thought I had it, but after my diner it had stopped

then I tried the jal version again and it did work for a long, after that I disconnected it
http://www.voti.nl/blink/code/b818-2.jal

[DanPBP]

Do you have a 10k resistor connected to MLCr and + ?

That drove my crazy the first time I played with pics.

Regards,
Daniel.

[lerameur]

Yes.. that was what someone told me yesterday afternoon. It is now working. I spent like 10 hours on this yesterday, all i needed was a resistor...pffff unbelievable. I will have to read on that, MCLR

ken