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F280049 adc采样问题

Other Parts Discussed in Thread: C2000WARE

F280049 ADC采样使用内部3.3V参考,设计A0通道SOC0采样出来一直是3625,A0口的电压应该是55 mV左右。用C2000Ware中自带的ADC程序也是出现这种情况!ADC的结果始终是3625,希望高手帮忙解答》。