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TMS320F28388D: sdfm时钟问题

Part Number: TMS320F28388D

请问,使用sdfm模块时,只接了dsp和ADC之间的sclk和sdat,没有接外部的pwm时钟信号,硬件没法改动了

还有办法补救吗

能不能用现在的sclk做输出,再从内部给sdfm同步一个时钟信号,