level1.h

此程序为利用mage8 AVR 和EM4094实现读取TYPE A类型卡的C程序、读卡稳定、这个项目我们做了好久、非常不错的程序、很适合做这方面产品的朋友们参考

#ifndef __LEVEL1__
#define __LEVEL1__

//constants----------------------------------------------------------

//public variables---------------------------------------------------
#define WDT 1
extern uint8_t counter1set;           //counter1 settings
extern uint16_t write_4094_low;       // low word of SPI configuration word
extern uint16_t write_4094_hi;        // hi word of SPI configuration word
extern uint8_t forward_link_type;     //forward link modulation type
extern uint8_t watchdog_reset;        //watchdog reset flag
extern uint8_t weigan_data[ 5 ];
extern uint8_t history_weigan_data[ 5 ];
//global register variables-------------------------------------------

register uint8_t captured_byte asm ("r6");      //store_bit current capture bits
register uint8_t captured_valid asm ("r7");     //store_bit current capture valid bits
register uint8_t capture_cnt asm ("r8");        //store_bit current capture byte index
register uint8_t captured_bit_count asm ("r9"); //store_bit current capture bit counter
register uint8_t bit_pos asm ("r10");           //bit position in demodulation
register uint8_t raw_cnt asm ("r11");           //store_bit current capture bit counter

//function declarations----------------------------------------------

extern void Beep( uint8_t times );
extern void Delayms( uint16_t count );
extern void Delayus( uint16_t count );
extern void WatchDog_Feed( void );
extern void Send_Card_ID( uint8_t format , uint8_t *data );
#endif // __LEVEL1__