89C51最小系统调试。

单片机的最小化系统是指单片机能正常工作所必须的外围元件，主要可以分成时钟电路和复位电路，我们采用的是AT89C51芯片，它内部自带4K的FLASH程序存储器，一般情况下，这4K的存储空间足够我们使用，所以我们将AT89C51芯片的第31脚固定接高电平（PCB画板时已经接死），所以我们只用芯片内部的4K程序存储器。-The 89 C51 minimum system commissioning.

Chip minimize system is a single chip can work properly the periphery of the main components, must be can be divided into the clock circuit and reset circuit, we use is AT89C51 chip, it bring their own internal 4 K FLASH program memory, usually, the 4 K storage space enough, so we will use our feet of fixed AT89C51 chip 31 by high level (PCB board has already meet dead), so we only inside the chip program memory 4 K.