Ping Darrel Taylor - Timer0 Instant Interrupt
(Instant Interrupt Timer0 Question)
Hi Darrel,
I just downloaded a fresh copy of the DT_INTS-14 and ReEnterPBP files from your website and intalled them in a new directory, along with my program file.
I have PBP 2.46 and the newest version of MPASM (5.03) running inside MicroCode Studio.
My target processor is a 16F88 @ 20 MHz.
I'm attempting to use a TMR0 interrupt.
The relevant PBP code looks like this:
ASM
INT_LIST macro ; IntSource, Label, Type, ResetFlag?
INT_Handler TMR0_INT, _ClockCount, PBP, yes
endm
INT_CREATE ; Creates the interrupt processor
INT_ENABLE TMR0_INT
ENDASM
When I compile, PBP tells me that T0IF can't be found and the program won't compile.
So I opened up the MPASM's .inc file for the 16F88 and discovered that T0IF and T0IE aren't mentioned anywhere. Rather, it's TMR0IF and TMR0IE.
So I made these two changes to the DT-INTS-14.bas file:
ifdef T0IF ;----{ TMR0 Overflow Interrupt }-------------[INTCON, TMR0IF]---
;INT_Source INTCON, T0IF, INTCON, T0IE
INT_Source INTCON, TMR0IF, INTCON, TMR0IE
endif
;#define TMR0_INT INTCON,T0IF ;-- TMR0 Overflow Interrupt 16F
#define TMR0_INT INTCON,TMR0IF ;-- TMR0 Overflow Interrupt 16F
------------
And now I get the error 'Interrupt source INTCON, TMR0IF not found.'
I've checked to make sure that zeros are used instead of the letter 'O' everywhere.
The errors are the same using a pervious version of MPASM - 3.90 I think.
Any ideas?
John
