Problem with using switch and interrupt

[atomy_kwang]

hello everyone, i have a question. How to use switch with interrupts

I will tell you a detail in the below :

Using : PIC16F877
Program : CCS C
led : port d bit 0
sw1 (switch1) : port b bit 0
sw2 (switch2) : port b bit 1
Interrupt from : RS232

goal : want to turn on LED
condition : If press sw1 or sw2 , LED will not
work immediately but it must have a
external signal from rs232 (i am waiting to receive a
value from rs232) in to PIC16F877 too,
also led will work, and if have external signal into
PIC16F877 before press sw1 or sw2
led will not work

Please help me for a code

Thank you very much

[vijay s]

it's simple.
Set a flag like switch = true in portb change interrupt when you press a switch. In uart interrupt routine check that a switch flag is true. If it is then turn on a LED, else turn off LED.
_________________
with regards
vijay s

[Wayne_]

Don't use the word "switch" as a variable use something like int sw;
switch is a keyword in C and the compiler will most likely complain.