timer.asm File Reference

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Detailed Description

This file handles the low priority interrupt and the tick counter.

This file implements the isr low priority hook. The hook is already filled with some content for tick timer handling. Prerequisite is that TMR0 is used as tick timer (see Tick for more details). The code is written to work in extended and standard PIC18 mode.

Netzer projects also can use this hook for handling custom interrupts. For this the assembler define PROJECT_SPECIFIC_IRQ must be defined while assembling timer.asm. The assembler will look for a file called "projectIRQ.inc" than. It depends on the content of PROJECT_SPECIFIC_IRQ (i.e. a call instruction or a macro) what is done. See projectIRQ.inc of the IO project for more details.

Author:

Sven Schlender (kontakt at mobacon dot de)

Date:

2011-07-20

Note:

If this file is assembled for extended mode than the symbol __EXTENDED18__ must be defined !!!