Xmega Application Note | |||||
Copyright (c) 2008, Atmel Corporation All rights reserved.
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Definition in file avr_compiler.h.
#include <stdint.h>
#include <stdbool.h>
#include <stdlib.h>
Go to the source code of this file.
Defines | |
#define | AVR_ENTER_CRITICAL_REGION() |
This macro will protect the following code from interrupts. | |
#define | AVR_LEAVE_CRITICAL_REGION() SREG = saved_sreg; |
This macro must always be used in conjunction with AVR_ENTER_CRITICAL_REGION so the interrupts are enabled again. | |
#define | F_CPU 2000000UL |
Define default CPU frequency, if this is not already defined. |
#define AVR_ENTER_CRITICAL_REGION | ( | ) |
Value:
uint8_t volatile saved_sreg = SREG; \
cli();
Definition at line 58 of file avr_compiler.h.
#define AVR_LEAVE_CRITICAL_REGION | ( | ) | SREG = saved_sreg; |
This macro must always be used in conjunction with AVR_ENTER_CRITICAL_REGION so the interrupts are enabled again.
Definition at line 64 of file avr_compiler.h.
#define F_CPU 2000000UL |
Define default CPU frequency, if this is not already defined.
Definition at line 50 of file avr_compiler.h.
Generated on Tue Apr 22 15:16:31 2008 for AVR1303 Use and configuration of IR communication module by ![]() |