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【issue】F2803xPWM载波频率会飘



刚刚发现一个问题,我们板子的程序相同,FLASH启动,F28030和F28035都呈现同样的结果:预期设定的125us PWM载波在上电后慢慢的开始减小,减小最多的一块减小到124.3us后基本稳定,减小不多的一块也有124.7us!

这是咋回事啊?!Any idea?