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ICD programming PIC16F874

 
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Vovachess



Joined: 15 Mar 2004
Posts: 33
Location: Swiss

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ICD programming PIC16F874
PostPosted: Fri Mar 10, 2006 3:54 am     Reply with quote

Hello.
I have problem with ICD-U40 programming of PIC16F874-
I have the simpliest programm:

#include <16F874A.h>
#fuses HS,NOWDT,NOPROTECT,NOLVP

#use delay(clock=4000000)
#use rs232(baud=9600, xmit=PIN_A3, rcv=PIN_A2)

main() {

while (1) {

output_high(PIN_D0);
output_high(PIN_D1);
delay_ms(1000);

output_low(PIN_D0);
output_low(PIN_D1);

delay_ms(1000);
}
}

I can programm MC with ICD but software goesnot run. Even occilator diesnot run. I looks like problem with fuses or LVP.....
What could it be?
Thanks
Humberto



Joined: 08 Sep 2003
Posts: 1215
Location: Buenos Aires, La Reina del Plata

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PostPosted: Fri Mar 10, 2006 7:16 am     Reply with quote

Quote:

I have problem with ICD-U40 programming of PIC16F874-


(1) Your program should run.
(2) Did you select PIC16F874 or PIC16F874A in your header ?
(3) Does the Reset pin keep close to 5V while running ?
(4) Did the hardware run properly once at least ? If not re-chek the OSC capacitors.
(5) Regarding the FUSES i will try
#fuses XT,NOWDT,NOPROTECT,NOLVP


Humberto
Guest








PostPosted: Fri Mar 10, 2006 8:43 am     Reply with quote

.
(2) Did you select PIC16F874 or PIC16F874A in your header ?
I use PIC16F874A header

(3) Does the Reset pin keep close to 5V while running ?
Yes

(4) Did the hardware run properly once at least ? If not re-chek the OSC capacitors.
Yes

(5) Regarding the FUSES i will try
#fuses XT,NOWDT,NOPROTECT,NOLVP
Tried....
It does not run Crying or Very sad
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