Passing arrays PBP <-> Assembly

I need to write an assembly language ISR that fills an array and then passes that array to PBP for processing. If I dimension the array in PBP, how can I determine the first address of that array so that my assembly ISR can sequentially load it? Or is there an easier way?

I'm using 18F chips.

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Originally Posted by Charles Linquis

I need to write an assembly language ISR that fills an array and then passes that array to PBP for processing. If I dimension the array in PBP, how can I determine the first address of that array so that my assembly ISR can sequentially load it? Or is there an easier way?

I'm using 18F chips.

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Take a look at the hardware async serial communications routine on the Melabs website. It is exactly what you want, but it does it in the form of a ring buffer. If you don't need this feature, just reset the pointers to 0 after the transfer is complete. I believe the name is "Aserbuf" or something close to that. There is a version written for the 18 series.

Also see this recent post

http://www.picbasic.co.uk/forum/showthread.php?t=3694

Paul Borgmeier
Salt Lake City, Utah
USA

Both sources were good, and I got it working.


Thanks!

Charles Linquist