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Interrupt on Port B

 
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chriss
Guest







Interrupt on Port B
PostPosted: Tue Jan 07, 2003 12:24 pm     Reply with quote

I have button on Port B
When i Push this button, the Pin is Low
Now I won't to count, how often this button is pushed and display the number on my 8 leds on port c.
The code oesn't work !!
Help me
-------------------------------------------------
#include <16f876.h>
#Device ICD=TRUE
#use delay(clock=4000000)

void main()
{
char newbit,in;
SET_TRIS_A(0xFF);
SET_TRIS_B(0xFF);
SET_TRIS_C(0x00);
while(1)
{
newbit=input(PIN_B0);
if(newbit==0)
{
in=in|newbit;
in=in*2;
output_c(in);
}

}
}
___________________________
This message was ported from CCS's old forum
Original Post ID: 10511
R.J.Hamlett
Guest







Re: Interrupt on Port B
PostPosted: Tue Jan 07, 2003 3:52 pm     Reply with quote

:=I have button on Port B
:=When i Push this button, the Pin is Low
:=Now I won't to count, how often this button is pushed and display the number on my 8 leds on port c.
:=The code oesn't work !!
:=Help me
:=-------------------------------------------------
:=#include <16f876.h>
:=#Device ICD=TRUE
:=#use delay(clock=4000000)
:=
:=void main()
:={
:= char newbit,in;
:= SET_TRIS_A(0xFF);
:= SET_TRIS_B(0xFF);
:= SET_TRIS_C(0x00);
:=while(1)
:={
:= newbit=input(PIN_B0);
:= if(newbit==0)
:= {
:= in=in|newbit;
:= in=in*2;
:= output_c(in);
:= }
:=
:=}
:=}
Try:

#include <16f876.h>
#Device ICD=TRUE
#use delay(clock=4000000)
#use fast_io(A)
#use fast_io(B)
#use fast_io(C)

void main()
{
char newbit,in,last;
SET_TRIS_A(0xFF);
SET_TRIS_B(0xFF);
SET_TRIS_C(0x00);
while(1)
{
newbit=input(PIN_B0);
if(newbit!=last)
{
//Here the input has changed
last=newbit
if (newbit==0)
{
output_c(++in);
}
}
}
}

___________________________
This message was ported from CCS's old forum
Original Post ID: 10518
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