on the other hand, by including analogReadResolution(12); in PLC IDE, it sends part of the values ββin negative, but with a resolution equally as if it were 16 bits. Is there information on this?
Thank you very much and very good job. It has incredible potential!
Hi HeronDA! same here, my performance with 16bit resolution (and hard averaging) equals the 12bit ADC performance on other MCUs. The 12 bit resolution selection is really a 4-bit right displacement over 16bit conversions. You can see this browsing the Opta libraries. For sure ADC accuracy margins can be improved.
About ADC Vref 3V3 is possible but not recomendable. Is better to engage a lower internal or external Vref, not shared with other onboard digital devices. I'm pretty sure MCU features this.
I'm waiting for clearance to discover the ADC setup con Opta to tweak adjustments to my interests. ST MCU is really impressing.