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.

TMS320F28069 时钟问题



我用20M的外部晶振 XtalOscSel(); 经过内部分频后 为5M

#define DSP28_PLLCR    1

#define DSP28_DIVSEL   1

我用定时器T1经过IO口输出1KHZ的方波,可是输出的方波波动很大  是为什么呢? 定时器不准确 还是应为外部的晶振波动很大?