这是串行AD采集芯片ADS7816的读写程序，采用Keil编译。-This is the serial AD acquisition of reading and writing chip ADS7816 procedure for the Keil compiler.

12位ads7816的两种读取方式：SPI方式和手动方式，严格安装ADS7816的时序进行。-12 ads7816 read two ways: SPI mode and manual mode, and strictly carry out the installation ADS7816 timing.

数控开关电源，闭环控制，算法是逐次逼近法，采用的是ADS8321模拟的内部时序，实现5到36的闭环，步进值为1V-NC switching power supply, the closed-loop control algorithm is a successive approximation method, using the internal timing of the ADS8321 analog 5-36 of closed-l

ads8321驱动程序，用于ad转换。基于AVR MEGA16单片机-ads8321 driver for ad conversion. Based on single-chip AVR MEGA16