Rainbow-electronics ATmega64M1 Manuel d'utilisateur télécharger pdf (Page 57)

8209A–AVR–08/09

ATmega16M1/32M1/64M1

Address Labels Code Comments

.org 0x002

0x002 jmp ANA_COMP_0 ; Analog Comparator 0 Handler

0x004 jmp ANA_COMP_1 ; Analog Comparator 1 Handler

... ... ... ;

0x03C jmp SPM_RDY ; Store Program Memory Ready Handler

;

.org 0xC00

0xC00 RESET: ldi r16,high(RAMEND); Main program start

0xC01 out SPH,r16 ; Set Stack Pointer to top of RAM

0xC02 ldi r16,low(RAMEND)

0xC03 out SPL,r16

0xC04 sei ; Enable interrupts

0xC05 <instr> xxx

When the BOOTRST Fuse is programmed, the Boot section size set to 2K bytes and the IVSEL

bit in the MCUCR Register is set before any interrupts are enabled, the most typical and general

program setup for the Reset and Interrupt Vector Addresses in ATmega16M1/32M1/64M1 is:

Address Labels Code Comments

;

.org 0xC00

0xC00 jmp RESET ; Reset handler

0xC02 jmp ANA_COMP_0 ; Analog Comparator 0 Handler

0xC04 jmp ANA_COMP_1 ; Analog Comparator 1 Handler

... ... ... ;

0xC3C jmp SPM_RDY ; Store Program Memory Ready Handler

;

0xC3E RESET: ldi r16,high(RAMEND); Main program start

0xC3F out SPH,r16 ; Set Stack Pointer to top of RAM

0xC40 ldi r16,low(RAMEND)

0xC41 out SPL,r16

0xC42 sei ; Enable interrupts

0xC43 <instr> xxx

12.1.1 Moving Interrupts Between Application and Boot Space

The MCU Control Register controls the placement of the Interrupt Vector table.

1 2 ... 52 53 54 55 56 57 58 59 60 61 62 ... 342 343

Pas de commentaire

Rainbow-electronics ATmega64M1 Manuel d'utilisateur Page 57