ATmega324P datasheet(202/377 Pages) ATMEL

Part #	ATmega324P

Description	8-bit Microcontroller with 16/32/64K Bytes In-System Programmable Flash

PDF	377 Pages

Scroll/Zoom	100%

Manufacturer	ATMEL [ATMEL Corporation]

Direct Link	http://www.atmel.com

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202 / 377 page

202

7674F–AVR–09/09

ATmega164P/324P/644P

Note:

1. See “About Code Examples” on page 8.

Assembly Code Example(1)

USART_Init:

clr

r18

out

UBRRnH,r18

out

UBRRnL,r18

; Setting the XCKn port pin as output, enables master mode.

sbi

XCKn_DDR, XCKn

; Set MSPI mode of operation and SPI data mode 0.

ldi

r18, (1<<UMSELn1)|(1<<UMSELn0)|(0<<UCPHAn)|(0<<UCPOLn)

out

UCSRnC,r18

; Enable receiver and transmitter.

ldi

r18, (1<<RXENn)|(1<<TXENn)

out

UCSRnB,r18

; Set baud rate.

; IMPORTANT: The Baud Rate must be set after the transmitter is enabled!

out

UBRRnH, r17

out

UBRRnL, r18

ret

C Code Example(1)

void

USART_Init( unsigned int baud )

{

UBRRn = 0;

/* Setting the XCKn port pin as output, enables master mode. */

XCKn_DDR |= (1<<XCKn);

/* Set MSPI mode of operation and SPI data mode 0. */

UCSRnC = (1<<UMSELn1)|(1<<UMSELn0)|(0<<UCPHAn)|(0<<UCPOLn);

/* Enable receiver and transmitter. */

UCSRnB = (1<<RXENn)|(1<<TXENn);

/* Set baud rate. */

/* IMPORTANT: The Baud Rate must be set after the transmitter is enabled

UBRRn = baud;

}

ATmega324P Datasheet(PDF) 202 Page - ATMEL Corporation

ATmega324P Datasheet(HTML) 202 Page - ATMEL Corporation

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