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msp430FR6989的AD采样率最高能多少？上M可以吗？手册是有写200K，ADC配合DMA用呢？
Keep in mind that the ADC12_B maximum sampling rate is 200 ksps. ADC12_B的采样率最大就是200k
更多信息，您可以参考下
mcu的内部adc采样率很少有到M的吧。
如果要求那么高，推荐使用外部adc芯片
