这是一个使用C8051F020单片机实现对时钟芯片SD2000E操作以及对单片机内部FLASH进行读写的例程。操作时钟时采用了模拟时序的方式而不是常规的中断方式。-This is a C8051F020 MCU used to clock the chip SD2000E internal operations as well as single-chip FLASH routines to read and write. Operation of the clock timing used i