说明：  PROTEL电路图，利用MSP430F149开发的MP3，内有CH375、VS1002D和TC58FLASH等的用法，以及便携充电方案。很有价值。
(PROTEL circuit, using MSP430F149 development of MP3, there are CH375, VS1002D and TC58FLASH usage, etc., as well as portable charging program. Very valuable.)