msp430fw427最小系统，单片机上所有引脚都引到扩展槽上，便于扩展外围器件，解压后用protel99se打开，内有sch和pcb文件直接可用-msp430fw427 the smallest systems, all single-chip all the pins into the expansion slot to facilitate expansion of the external devices, decompression protel99se open later, with sch and pcb files directly available