pll_drv.h File Reference

This file contains the low level macros and definition for the USB PLL. More...

Go to the source code of this file.

Defines
#define	Start_pll(clockfactor)   (PLLCSR = ( clockfactor | (1<<PLLE) ))
	Start the PLL at only 48 MHz, regarding CPU frequency Start the USB PLL with clockfactor clockfactor can be PLLx24, PLLx12, PLLx08 PLLx06, PLLx04, PLLx03.
#define	Is_pll_ready()   (PLLCSR & (1<<PLOCK) )
	return 1 when PLL locked
#define	Wait_pll_ready()   while (!(PLLCSR & (1<<PLOCK)))
	Test PLL lock bit and wait until lock is set.
#define	Stop_pll()   (PLLCSR &= (~(1<<PLLE)) )
	Stop the PLL.
#define	Pll_start_auto()   Start_pll(PLLx06)
	Start the PLL in autofactor mode regarding FOSC define.

---

Detailed Description

This file contains the low level macros and definition for the USB PLL.

Application note:

AVR280: USB Host CDC Demonstration

Documentation

For comprehensive code documentation, supported compilers, compiler settings and supported devices see readme.html

Author:

Atmel Corporation: http://www.atmel.com
Support email: avr@atmel.com

Name

Revision

1.1

RCSfile

pll_drv.h,v

Date

2008/10/14 20:16:36

Id

pll_drv.h,v 1.1 2008/10/14 20:16:36 c_oflynn Exp

Definition in file pll_drv.h.