ATMEGA329P_1 datasheet(51/385 Pages) ATMEL

Nome de Peças	ATMEGA329P

Descrição Electrónicos	8-bit Microcontroller with 32K Bytes In-System Programmable Flash

PDF	385 Pages

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Fabricante Electrônico	ATMEL [ATMEL Corporation]

Página de início	http://www.atmel.com

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51

8021E–AVR–07/09

ATmega329P/3290P

The following code example shows one assembly and one C function for turning off the WDT.

The example assumes that interrupts are controlled (e.g. by disabling interrupts globally) so that

no interrupts will occur during execution of these functions.

Note:

1. See Section “5.” on page 9.

Assembly Code Example

(1)

WDT_off:

; Reset WDT

wdr

; Write logical one to WDCE and WDE

in

r16, WDTCR

ori

r16, (1<<WDCE)|(1<<WDE)

out

WDTCR, r16

; Turn off WDT

ldi

r16, (0<<WDE)

out

WDTCR, r16

ret

C Code Example(1)

void

WDT_off(void)

{

/* Reset WDT */

__watchdog_reset();

/* Write logical one to WDCE and WDE */

WDTCR |= (1<<WDCE) | (1<<WDE);

/* Turn off WDT */

WDTCR = 0x00;

}

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ATMEL Corporation	ATMEGA329P	734Kb / 427P	High Performance, Low Power Atmel

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