Interrupt-On-Change on PIC16F1933

[martint88]

Hello,
I need to use the interrupt on change of this chip. It has different flags for the change of each pin in Portb. My problem is I cant find out how to write the isr for each pin. I cant find the preprocessor directive to do so.
I'm using it on RB0, so it first tried #int_RB0 but that doesn't compile.
Is it possible to use this feature?
Thank You

[ALPL]

Hi, you have to use #INT_RB (for port B-pins) for your interrupt routine and then check in the interrupt routine which pin has changed its state. There is no extra #INT_RB0, etc for each single pin.

BR
ALPL

[martint88]

Thank you for the help.
Is there any way to check the IOCBF register without using ASM?

[ALPL]

Yes, you can - just add following statement at the beginning of your code (after the #include ...):

#byte IOCBF = 0x396 // located in bank 7

Then later in your code you can aread/write IOCBF like a normal variable.

[martint88]

Thank you very much