This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

28335PWM问题



你好:

          我在用EPWM1A和EPWM1B产生PWM波形的时候,当频率比较高时产生的矩形波的高电平是3.3V,当频率为几Hz的时候产生的矩形波的高电平是4.5V,这是什么原因导致的?而且这个波形不是标准的矩形波,高电平不是平的而是类似个斜面?