globals.h

AVR单片机有趣的展示

#ifndef _GLOBALS_H_
#define _GLOBALS_H_ 1

#define NULL 0

// Frequencies
#define F_CPU           1000000L
#define ASYNC_TIMER         128      // Hz

//KEY's
#define KEY_ENTPRELL    2	//x*ASYNC_TIMER
#define KEY_OFF       255	//
#define KEY_SETAUTO   192	//192=1,5 seconds

// Timings
#define MODE_MAX        8	//Quantity of modes
#define AUTO_PERIOD    64	//Quantity of periods until to next mode if Auto change is activated
#define BRIGHT_PERIOD  16	//Quantity of Async periods for light refresh
#define BRIGHT_ONTIME   1	// 1 = darkest light (one period of async int)
#define SPEED_FACTOR    1	//defines the number of bright periods when the next led step is shown

//other global variables
volatile uint8_t new_tick;
uint8_t led_mode;
uint8_t led_bright;
volatile uint8_t key_new, key, key_cnt, key_old;

//volatile uint8_t in_led;

#endif /* _GLOBALS_H_ */