AD_INT -- A/D Converter Interrupt
Uses PIR1,ADIF, PIE1,ADIE Registers and Control Bits.
DT's Interrupts MUST be used with PicBasic Pro and MPASM.
The following block of instructions will establish the interrupt used and the PBP label (your ISR) to jump to once interrupt occurs. Remember; all PBP labels or variables used inside ASM code blocks must be preceded by the underscore,( _GetDig). All instruction to the interrupt processor should be in ASM and preceded by the @ symbol and to the far left column of the editor if not included in other ASM code blocks.
Example:
@ INT_DISABLE AD_INT
ASM
INT_LIST macro ;IntSource Label, Type, ResetFlag?
INT_Handler AD_INT _GetDig PBP Yes
endm
INT_CREAT ;Creates the interrupt processor
INT_ENABLE AD_INT ;enables AD interrupts
ENDASM
Command functions:
INT_CREATE ;Creates the interrupt processor
INT_ENABLE AD_INT – enable AD interrupt.
INT_DISABLE AD_INT – disable AD interrupt.
INT_CLEAR AD_INT -- clear flags
INT_RETURN ---------- To restore and return to the program where interrupt was made.
The A/D interrupt fires when an A/D conversion is complete. This is handy for entering sleep mode,
and having the PIC wake up when the A/D conversion is complete. With the oscillator shut down during sleep, you get much more stable A/D readings.
Bruce http://www.picbasic.co.uk/forum/showthread.php?t=8111
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