#define		addr_bit_1			0x01#define		addr_bit_2			0x02#define		addr_bit_3			0x03#define		addr_bit_4			0x04#define		addr_bit_5			0x05#define		addr_bit_6			0x06#define		addr_bit_7			0x07#define		addr_bit_8			0x08#define		addr_trans_mode		0x09#define		addr_light_con		0x0a#define		addr_scan_count		0x0b#define		addr_close			0x0c#define		addr_echo_test		0x0dsbit	    ps7219_pin_RST  =    P1^4;sbit		ps7219_pin_LOAD =    P1^5;sbit		ps7219_pin_DIN	=    P1^6;sbit		ps7219_pin_CLK	=    P1^7;void  ps7219_init();void  ps7219_reset();void  ps7219_echo(unsigned char da_1,da_2,da_3,da_4);void  ps7219_send_data(unsigned char addr,da);void  ps7219_delay(void);