Lpc2000

rseku wrote:

>I am testing simplest ever Crossworks CTL examples for builtin  multi 
>tasking.
>When I went through test 2 for Olimex(LPC2138), I found that button ISR
>once energized never stops.I think, that button press event should be 
>generated only once, when button is pressed ( I am not certain if LPC is 
>working based on Edge or Level interrupt signal)
>
>  
>
If you are experiencing continual execution of your ISR code, then it 
would probably be that the interrupt is in "level" rather than "edge" 
mode.  See section 3.5 (System Control Block: External Interrupt Inputs) 
of the Philips manual for the 2138.

TomW

-- 
Tom Walsh - WN3L - Embedded Systems Consultant
http://openhardware.net, http://cyberiansoftware.com
"Windows? No thanks, I have work to do..."
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