The ADC, GP_ADC_SIGN

About the ADC

Thu, the 2016-04-14 02:44-z20121202038

1) there are two kinds of ADC sampling mode:

* @ param [in] sign: 0 = Default, GP_ADC_SIGN x0400 (0) = Conversion with opposite sign at
The input and output to cancel out the internal ADC and offset of the
Low frequency
Adc_init (uint16_t mode, a uint16_t signs and uint16_t attn)

Want to ask, GP_ADC_SIGN is to be able to eliminate the low frequency signal and internal disturbances?The accuracy of it will be better?I see the SDK source code is in the two modes of sampling value sum, was not divided by 2.
So, how do we choose the work mode generally?

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