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ATmega328P Datasheet(PDF) 64 Page - ATMEL Corporation |
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ATmega328P Datasheet(HTML) 64 Page - ATMEL Corporation |
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64 / 448 page  64 8161D–AVR–10/09 ATmega48PA/88PA/168PA/328P 0x0034 out SPH,r16 ; Set Stack Pointer to top of RAM 0x0035 ldi r16, low(RAMEND) 0x0036 out SPL,r16 0x0037 sei ; Enable interrupts 0x0038 <instr> xxx ... ... ... ... When the BOOTRST Fuse is unprogrammed, 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 ATmega168PA is: Address Labels Code Comments 0x0000 RESET: ldi r16,high(RAMEND); Main program start 0x0001 out SPH,r16 ; Set Stack Pointer to top of RAM 0x0002 ldi r16,low(RAMEND) 0x0003 out SPL,r16 0x0004 sei ; Enable interrupts 0x0005 <instr> xxx ; .org 0x1C02 0x1C02 jmp EXT_INT0 ; IRQ0 Handler 0x1C04 jmp EXT_INT1 ; IRQ1 Handler ... ... ... ; 0x1C32 jmp SPM_RDY ; Store Program Memory Ready Handler When the BOOTRST Fuse is programmed and the Boot section size set to 2K bytes, the most typical and general program setup for the Reset and Interrupt Vector Addresses in ATmega168PA is: Address Labels Code Comments .org 0x0002 0x0002 jmp EXT_INT0 ; IRQ0 Handler 0x0004 jmp EXT_INT1 ; IRQ1 Handler ... ... ... ; 0x0032 jmp SPM_RDY ; Store Program Memory Ready Handler ; .org 0x1C00 0x1C00 RESET: ldi r16,high(RAMEND); Main program start 0x1C01 out SPH,r16 ; Set Stack Pointer to top of RAM 0x1C02 ldi r16,low(RAMEND) 0x1C03 out SPL,r16 0x1C04 sei ; Enable interrupts 0x1C05 <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 ATmega168PA is: Address Labels Code Comments ; |
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