This topic can be closed now.

I was geting stable ADC readings and carried on with other features in the mean time. I still had the LSB issue when reading the CONF register.

As stated before, by this design the AD7190 CS is permanently pulled LOW. This meant that the only way I could reliably ...

It's a timing issue when reading back the CONF register. I'm actually successfully writing 0x000257 to the register, and the last 3-bits sets the gain 0x07 = 128. I can confirm the gain to be 128 by the ADC counts. So writing is fine, just reading the LSB for CONF register is off by (presumably) one ...

Hi All,

I'm the process of porting a project to ESP32-S3 and I'm using ESP-IDF. I'm configuring an ADC AD7190. I can read and write to various registers reliably. but have an issue with one register in particular, the CONF register. The ADC is set to continuous mode and the board has CS routed to ...