串行DA MAX517测试程序,测试通过，用示波器观察输出3.88V电压。

DA，数字转模拟信号，基于51芯片，信号转换采用DAC8512-DA, digital to analog signals, based on the 51 chips, signal converters used DAC8512

DAC8512驱动子程序，基于AVR GCC语言，使用芯片为Mega128l，调试通过，主程序直接调用即可-DAC8512 drive subroutine, based on the AVR GCC languages, use chip Mega128l, debugging, you can directly call the main program