>>> Warning 224 "C:\PROGRA~1\PICC\drivers\pic18_usb.h" Line 928(1,1): Interrupt level changed USB: NORMAL=>HIGH
>>> Warning 224 "D:\Projects\mplab_prj\usb\ex_usb_serial.c" Line 144(1,1): Interrupt level changed EXT: NORMAL=>HIGH

A summary of the different kinds of PIC18 interrupts:

#INT_xxxx

Normal (low priority) interrupt. Compiler saves/restores key registers.

This interrupt will not interrupt any interrupt in progress.

#INT_xxxx FAST

High priority interrupt. Compiler DOES NOT save/restore key registers.

This interrupt will interrupt any normal interrupt in progress.

Only one is allowed in a program.

#INT_xxxx HIGH

High priority interrupt. Compiler saves/restores key registers.

This interrupt will interrupt any normal interrupt in progress.

#INT_GLOBAL

Compiler generates no interrupt code. User function is located

at address 8 for user interrupt handling.

Syntax:
#priority ints



Elements:
ints is a list of one or more interrupts separated by commas.



export makes the functions generated from this directive available to other compilation units within the link.



Purpose:
The priority directive may be used to set the interrupt priority. The highest priority items are first in the list. If an interrupt is active it is never interrupted. If two interrupts occur at around the same time then the higher one in this list will be serviced first. When linking multiple compilation units be aware only the one in the last compilation unit is used.



Examples:
#priority rtcc,rb

Верно, CCS v.3.249 не се наглася сам приоритетите... за сметка на това обаче #org се бъгне при него Аман!