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I put those enables in and it works, thanks a lot buddy.
#include <18f4520.h>
#device ICD=TRUE
#fuses HS,NOLVP,NOWDT
#use delay (clock=20000000)

#define tx_pin PIN_C6
#defin ...

Hi,

I have an interrupt for RS232 (#int_RDA), but it never fires when it receives data.

So I checked the include file 18f4520.c and found:

#define INT_RDA 0x9D20

I checke ...

Use Multisim Analog Devices Edition, its free.

Douglas Kennedy, how would I set the flag for this?

I guess that will do then. What about sending ADC data every 1-2 seconds instead of every time it's done with the conversion? Can you help me with an example code?

Thanks a lot, KU5D.

1. Basically, I trying to control leds/motor via computer and also read the temperature from the sensor. Thus, the main() turns on/off leds and varies motor's speed.

2. Lets say I have something li ...

I need to have interrupts for something like this:

Interrupt for receiving data:
1 .The main program is doing whatever it has to do.
2. Computer transmits data to PIC, the program finishes its cu ...

Thanks meereck. It kinda works now but I still have one problem:
#include <18F452.h>
#fuses HS,NOWDT,NOPROTECT,NOLVP
#use delay(clock=4mhz)
#use rs232(baud=9600, bits=8, parity=N ...

This is the code that I have:
#include <18F452.h>
#fuses HS,NOWDT,NOPROTECT,NOLVP
#use delay(clock=4mhz)
#use rs232(baud=9600, bits=8, parity=N, stop=1, ERRORS, xmit=PIN_C6, rcv= ...