SAADC NOT INITIALISING

[srv]

I want to take saadc samples for one second,every 5 seconds,the rest of the time the mcu is in system on sleep mode with rtc1 on.Eery 5 second there is an rtc event and the mcu wakes up from sleep and initialises saadc using saadc_init(),takes the samples and the saadc is turned off using nrf_drv_saadc_uninit(); NVIC_ClearPendingIRQ(SAADC_IRQn); But the saadc gives the same set of samples as output every time. I am using PCA10036 and SDK11.

[Stefan Birnir Sverrisson]

Hi

I would recommend updating to PCA10040, as PCA10036 contains the preview version of the nRF52832. Furthermore, nRF5 SDK 11 is not tested with nRF52832 Engineering A revision which is present on the PCA10036. There are however a few examples available on this tread for PCA10036 together with nRF52 SDK 0.9.2. For a SAADC example that uses BLE, there is an example available here for SDK 11.0.0 and PCA10040. The saadc_low_power example initializes the SAADC before sampling and unitializes the SAADC when done sampling.

For compatibility of different ICs, SDKs and softdevices, look at the nRF52 compatibility matrix.