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[avr-libc-dev] [bug #29964] Possible Incorrect Interrupt Vector Addresse

From: Jose Torres
Subject: [avr-libc-dev] [bug #29964] Possible Incorrect Interrupt Vector Addresses for mega168
Date: Wed, 26 May 2010 04:36:08 +0000
User-agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv: Gecko/20100401 Firefox/3.6.3

Follow-up Comment #2, bug #29964 (project avr-libc):

Hi Joerg,

For the mega88 the following are a sampling of interrupt vector addresses:
0x000 rjmp RESET ; Reset Handler
0x001 rjmp EXT_INT0 ; IRQ0 Handler
0x002 rjmp EXT_INT1 ; IRQ1 Handler
0x003 rjmp PCINT0 ; PCINT0 Handler
0x004 rjmp PCINT1 ; PCINT1 Handler
0x005 rjmp PCINT2 ; PCINT2 Handler
0x006 rjmp WDT ; Watchdog Timer Handler
0x007 rjmp TIM2_COMPA ; Timer2 Compare A Handler
0X008 rjmp TIM2_COMPB ; Timer2 Compare B Handler

This is in line with what iomx8.h states.

I am unsure how _VECTOR() computes the addresses but they just don't seem to
line up for the mega168.

Are the addresses properly computed because of the following?
#if defined (__AVR_ATmega168__)
#  define _VECTORS_SIZE 104
#  define _VECTORS_SIZE 52

#endif /* _AVR_IOM8_H_ */



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