[avr-gcc-list] ATTiny2313 GCC Support?

[Bob Paddock]

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What do I need to do to use the ATTiny2313 with GCC?  I'm currently using 
the
WinAVR Sept./2003 release.  I assume I need to create at least a iotn2313.h
include I/O file, is there anything else?

PCINT vector #12 is new, it is a PortChange IRQ.  Do I need to write some 
kind
of SIGNAL() handler for it, or is just defining the new vector table 
sufficient?

From AVR091.pdf app. note:

Changes to Interrupt Vector

The interrupt vector table of the ATtiny2313 differs from the one of
AT90S2313. These changes mainly consist of addition of new interrupt 
vectors.

Register Name AT90S2313 Register Name ATtiny2313
USR UCSRA
UCR UCSRB
UBRR UBRRL

Changes to Interrupt Vectors

Vector No. Program Address AT90S2313 ATtiny2313
1 0x0000 RESET RESET
2 0x0001 INT0 INT0
3 0x0002 INT1 INT1
4 0x0003 TIMER1 CAPT1 TIMER1 CAPT
5 0x0004 TIMER1 COMP1 TIMER1 COMPA
6 0x0005 TIMER1 OVF1 TIMER1 OVF
7 0x0006 TIMER0 OVF0 TIMER0 OVF
8 0x0007 UART RX USART0 RX
9 0x0008 UART UDRE USART0 UDRE
10 0x0009 UART TX USART0 TX
11 0x000A ANA_COMP ANALOG COMP
12 0x000B PCINT
13 0x000C TIMER1 COMPB
14 0x000D TIMER0 COMPA
15 0x000E TIMER0 COMPB
16 0x000F USI START
17 0x0010 USI OVERFLOW
18 0x0011 EE READY
19 0x0012 WDT OVERFLOW


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