nrf51822 ANAEN

RE: nrf51822 ANAEN

Håkon Alseth — Thu, 12 Jun 2014 11:44:48 GMT

The peripheral will claim the pin when it's active, and then release it once it's stopped again.

RE: nrf51822 ANAEN

Lucas — Wed, 11 Jun 2014 14:23:06 GMT

So then does the ADC_CONFIG_PSEL_AnalogInputXXX(2 in my situation) automatically enable the corresponding GPIO pin for operation as an analog input?

NRF_ADC->CONFIG = (ADC_CONFIG_RES_10bit << ADC_CONFIG_RES_Pos) | (ADC_CONFIG_INPSEL_AnalogInputNoPrescaling << ADC_CONFIG_INPSEL_Pos) | (ADC_CONFIG_REFSEL_VBG << ADC_CONFIG_REFSEL_Pos) | (ADC_CONFIG_PSEL_AnalogInput0 << ADC_CONFIG_PSEL_Pos) | (ADC_CONFIG_EXTREFSEL_None << ADC_CONFIG_EXTREFSEL_Pos);

RE: nrf51822 ANAEN

Håkon Alseth — Wed, 11 Jun 2014 14:13:36 GMT

The figure is misleading, as there is no register or bit that is called "ANAEN". This is reported in our internal bug register.

It's most likely an internal signal that were never meant to be in that figure.