table 31bit 3 is ADCMOD2
In ADlib.c, AdcRng has
int AdcRng(ADI_ADC_TypeDef *pPort, int iRef, int iGain, int iCode)
int i1 = 0;
i1 = pPort->MDE&0xff07;
pPort->MDE = i1|((iGain&0xf8));
meaning always setting ADCMOD2 to zero!
Does it mean gain of 2 is never available? If so, why? if I need to use gain of 2, should I set it to one?