RE: [bascom] INT0 Problem

["P E" <panther@vasnet.co.in>]

Dear George,

You have the folloing wrong.

config int0=rising, falling whats happened to that line. secondly

hardware problem with atmel. If you see the data  sheets, You would see that
the Gifr.6 and gifr.7 register are set on the interrupt. this you better
clear before enabling the interrupts.

srikanth kamath

-----Original Message-----
From: owner-bascom@grote.net [mailto:owner-bascom@grote.net]On Behalf Of
Saum, George
Sent: Wednesday, June 13, 2001 8:38 AM
To: bascom@grote.net
Subject: [bascom] INT0 Problem


Hi:
        Hope someone can help me with this problem.  I am trying to interface 
a
keypad to an 8032.  The keypad has some external electronics that
generate an 'any key pressed' signal which is a negative going pulse
lasting about 50 msec.
I want to use this pulse to interrupt the microprocessor which will then
obtain the actual key pressed through a serial port arrangement.  I am
having trouble with the interrupt generation.  Here is the interrupt
test code:
Declare Sub Label2
Enable Interrupts
Enable INT0
On INT0 Label2
Do
Loop
End
Label2:
        Print "Interrupt"
Return

What is wrong with this code?  Have I left something out?  I am using
Bascom-8051 ver 2.0.2.0.  The above code compiles but will not respond
to the negative going keypulse.
                Thanks for any help.
                        Bud