[Opendispense] Questions - new memory map

Bernard Blackham bernard@blackham.com.au
Thu Aug 14 02:16:01 2003


On Thu, Aug 14, 2003 at 09:22:43AM +0800, Adrian Chadd wrote:
> > > Depends how the software is written. Whats the current interrupt handler
> > > doing?
> > 
> > The interrupt handler will only be used for the daughterboard &
> > UART. The logic board alone has it tied high.
> 
> Ok. If you use an interrupt handler you'll have to code up the interrupt routine
> and some enqueue/dequeue code. Find out how long each loop takes to run,
> see if you can sneak in that extra UART and support code. 

Already nearly done.

> Which you may need to do anyway, if the existing code is already tight
> timewise..

I believe the main loop of the code is pretty tight - faster than
the main loop of the original ROM at least. Given that keypresses
are polled for, it can't be too long.


Bernard.

-- 
 Bernard Blackham 
 bernard at blackham dot com dot au