Rainbow-electronics ATmega8515L Instrukcja Użytkownika Pobierz pdf (Strona 52)

ATmega8515(L)

2512A–AVR–04/02

Note: 1. The Boot Reset Address isshowninTable 78onpage 173. For the BOOTRST Fuse

“1” means unprogrammedwhile “0” meansprogrammed.

Themosttypical and generalprogram setupfor theReset andInterruptVector

Addresses in ATmega8515 is:

Address Labels Code Comments

$000 rjmp RESET ; Reset Handler

$001 rjmp EXT_INT0 ; IRQ0 Handler

$002 rjmp EXT_INT1 ; IRQ1 Handler

$003 rjmp TIM1_CAPT ; Timer1 Capture Handler

$004 rjmp TIM1_COMPA ; Timer1 Compare A Handler

$005 rjmp TIM1_COMPB ; Timer1 Compare B Handler

$006 rjmp TIM1_OVF ; Timer1 Overflow Handler

$007 rjmp TIM0_OVF ; Timer0 Overflow Handler

$008 rjmp SPI_STC ; SPI Transfer Complete Handler

$009 rjmp USART_RXC ; USART RX Complete Handler

$00a rjmp USART_UDRE ; UDR0 Empty Handler

$00b rjmp USART_TXC ; USART TX Complete Handler

$00c rjmp ANA_COMP ; Analog Comparator Handler

$00d rjmp EXT_INT2 ; IRQ2 Handler

$00e rjmp TIM0_COMP ; Timer0 Compare Handler

$00f rjmp EE_RDY ; EEPROM Ready Handler

$010 rjmp SPM_RDY ; Store Program Memory Ready Handler

$011 RESET: ldi r16,high(RAMEND); Main program start

$012 out SPH,r16 ; Set stack pointer to top of RAM

$013 ldi r16,low(RAMEND)

$014 out SPL,r16

$015 sei ; Enable interrupts

$016 <instr> xxx

... ... ...

Table 23. Reset andInterruptVectors Placement

(1)

BOOTRST IVSEL Reset Address Interrupt Vectors Start Address

10$0000 $0001

11$0000 Boot Reset Address + $0001

00Boot Reset Address $0001

01Boot Reset Address Boot Reset Address + $0001

1 2 ... 47 48 49 50 51 52 53 54 55 56 57 ... 222 223

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Rainbow-electronics ATmega8515L Instrukcja Użytkownika Strona 52