PIC18 high and low priority interrupts

[soundscu]

Hi,

I need to use the PIC18 capability of high and low priority interrupts, where a high can interrupt a low. I've done this numerous times in projects I've written in assembler, but never in c. Is it even possible? If so, where is it documented?

Thanks for your help!
Jim

[Ttelmah]

#int_xxxx high

Look under the #INT_xxxx entry in the manual. Two keywords. 'FAST', and 'HIGH'. Both define high priority interrupts, the former, requires _you_ to save any registers used, and has no code to identify what device has interrupted (designed fo use for one device to give the fastest possible handling, if you know what you are doing), while 'high', generates the requires handler and parsing to support multiple high priority interrupts.
You also need to add the define:
#device HIGH_INTS=TRUE
Near the start of the code, to trigger the compiler to generate the extra code to handle these.

Best Wishes

[soundscu]

Most excellent! That's exactly the direction I needed. Thank you!!

Jim