自制的C8051F410最小体验版的原理图、PCB图和测试程序，带有标准ISP下载接口，适合C8051系列入门使用-C8051F410-made version of the minimum experience schematic, PCB plans and test procedures, with a standard ISP download interface, suitable for use C8051 series entry

C8051实时时钟开发程序，已经测试，可以正常工作。-C8051 development process real-time clock has been tested to work properly.