入口参数：70H-7FH存放将要显示的数据，出口参数：无本子程序将RAM区70H-7FH单元的16进制数据(0-16)按共阴连接 方式译码后发送给TM1640通过LED数码显示管以ASCII码的形式显示出来,TM显示地址为00H-0FH，转换码表存放于ROM区400H单元开始的16个单元-Entry parameters: 70H-7FH stored data to be displayed, the export parameters: None Sub-program unit RAM area 70H-7FH hexadecimal data (0-16) by common cathode connection decoded and sent to the TM1640 through the LED digital display tube in ASCII form displayed, TM Display address 00H-0FH, code conversion table stored in the ROM area 400H unit started 16 units