How to deal with external interrupts

inaki

Okay the Propeller does not have interrupts. However I wonder how can·it deal with other external·devices that do·work with interrupts.
Should I use the WAITPEQ/WAITPNE instructions ? Can I emulate edge and level interrupts using these signals ?
Which is the correct approach to work with external interrupts on Propeller ?









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Jon Williams

I suppose you could dedicate a cog and use WAITPEQ or WAITPNE; or if you simply needed to latch the "interupt" input you could setup one of the cnt registers for edge detect and then check its count from time-to-time.

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Jon Williams
Applications Engineer, Parallax