Description: T1 chip Computer IO interruption in output P1.0 mouth music (P1.0 mouth with a loudspeaker indirectly VCC can be heard)//// 1. As the square wave output, more bluntly :-) You can also use sub-DA waveform output sine wave//// 2. As T1 frequently interrupted, any other interruption occurred will be playing music Kingston, it is only suitable for testing//// 3. Code optimization notes : a byte contains rhythms, musical notes, movements emphasize that can distinguish between data and orders
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