这是一款基于msp430新出的G2553IN20单片机开发的可以实现在LCD显示正弦波功能的程序，其中还包含了触摸按键控制的头文件。-This is a sine wave function of the program on the LCD display can be achieved based on of msp430 new out G2553IN20 microcontroller development, which also includes the touch buttons

使用LPC1768从SD卡中读WAVE文件，通过DMA方式发送到I2S接口。输入时钟为22.5792MHz,DAC采样频率为44.1KHz-LPC1768 WAVE file read from the SD card, sent by the DMA to I2S interface. The input clock of 22.5792 MHz DAC sampling frequency of 44.1KHz

STM32利用定时器来产生一个PWM波。包括STM32库文件和其他配置文件。-STM32 timer to generate a PWM wave. Including the STM32 library files and other configuration files.

采用信号发生芯片，与单片机结合，能够产生常用的信号波形，此信号发生器能够满足实验要求，为昂贵信号发生器低成本代替品，包含实际仿真电路与程序文件-Signal chip microcontroller, able to generate the signal waveform signal generator can meet the test requirements, low-cost alternative to expensive signal generator contains the