... always monitor the running of player C: Interface a, Input: 1: RS232 2: push button 3:GPIO, can ... audio,music together at the root directory, if user input by remote or RS232 or Push button, the player ... item include three part First two bit digit is the input No, then follow one “=” After the =, it ... this group by three part, First two bit is the input digit, after it is a “=”, after the “=”,define ...