level4.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 __LEVEL4__
#define __LEVEL4__

//// to enable debug version, uncomment following: 
//#define DEBUG
#define UART_IN_BUFFER_SIZE    30

#define UART_MESSAGE_OK        0x00
#define ERR_UART_OVERFLOW      0x01
#define ERR_UART_NO_NEW_DATA   0x02





//constants----------------------------------------------------------
extern uint8_t uart_out_buffer[ 4 ];
extern uint8_t uart_in_buffer[ UART_IN_BUFFER_SIZE ];    //receive buffer,receive data from UART of PC;
//extern uint8_t uart_in_error;       //uart receive error;
extern uint8_t uart_in_write;       //received value numbers;
extern uint8_t uart_in_read;        //
extern uint8_t uart_in_overflow;
extern uint8_t tx_number;
extern uint8_t rx_number;
extern uint8_t uart_valid_data_num;
extern uint8_t uart_command;
extern uint8_t uart_param;
extern uint8_t uart_in_command;
extern uint8_t uart_in_param;
extern uint8_t valid_data_flag ;
//function declarations----------------------------------------------

extern void SendByte( uint8_t byte );
extern uint8_t CheckIncommingMessage( void );
extern void Send_Weigan0( void );
extern void Send_Weigan1( void );
extern void Send_Weigan26( uint8_t * data );
extern void Send_Weigan34( uint8_t * data );
extern void Send_Weigan36( uint8_t * data );
extern void Send_Weigan44( uint8_t * data );
extern void Send_9600( uint8_t * data );
#endif // __LEVEL4__