Hi,
I want to use the SAADC to measure the voltage on the VDDH pin. I am using a design based on circuit config #4 and following the SAADC example in the SDK version 15.3.
I noticed that when setting up the channel config, the nrf_saadc_input_t struct does not contain a value for VDDH/5. But according to OPS 6.23.9.18, this is a supported configuration. Reading through some threads, it seems like earlier versions of the chip had an errata that caused this input to not work. On my board (which uses nRF52840_CKAA) it seems to be working if I set the input using NRF_DRV_SAADC_DEFAULT_CHANNEL_CONFIG_SE(0x0D).
So I'm just wondering if there's a reason the SDK does not seem to "officially" support this or is it just an oversight (or maybe pending in a future update)?
