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TMS320F280的HRPWM能否精细控制频率



我的芯片是TMS320F280,看资料是有HRPWM功能,如果我想控制频率变化为1HZ的变化量,能实现么?因为我看资料的时候,当我的系统时钟是60MHZ,如果我想得到20KHZ的pwm信号,那么我的TBPRDHR的值为60M/20K=3000,可以实现,但是如果我想要20001HZ的pwm信号,如何设置这些寄存器呢?因为60M/20001=29985.007496,除不断。