使用数/模转换芯片DAC0832，在单缓冲方式下，通过编写程序来控制数/模转换，执行程序后，实现在DAC0832的输出端产生方波和正弦波。(The number / mode conversion chip DAC0832 is used to control the number / mode conversion by programming in a single buffer mode. After the program is executed, the Fang Bo and sine wave are produced at the output end of the DAC0832.)