我写过的代码，留存一份，随时查用
stc15f104w写的小状态机，没啥好说的
stc8a8k写的硬件spi屏幕驱动
ti dsp tms320f28335写的pwm波形调制程序。28335PWMmod 是一个十分简陋的PWM调制程序，可以将正弦波经过三角波调制输出方波，驱动CLASS_D。同时还附带了一个IIR滤波器，可以观察滤波后的输出效果 非常感谢约克大学的网页程序可以十分便捷的生成滤波器。库文件里面有很多没用的库，我随缘添加的 It is a very simple PWM modulation program, which can output a square wave through a triangular wave modulation sine wave, drive CLASS_D. It also comes with an IIR filter to observe the filtered output Thank you very much for York University's web program which can generate filters very conveniently. There are many useless libraries in the library file, which I added