基于汇编语言开发设计DAC1210与CPU 8051/52的接口电路，输出0-5V的周期锯齿波，频率可调，并提供DAC0832的仿真电路，可在proteus软件上结合示波器进行仿真模拟，供大家进行基础学习选择使用。.(Based on assembly language, we develop and design the interface circuit between DAC1210 and CPU 8051/52, output the periodic sawtooth wave of 0-5V, the frequency is adjustable, and provide DAC0832 simulation circuit. We can simulate the Proteus Software with oscilloscope, so that you can learn and choose to use it. .)