STM32f103 A/D reference

[emalund]

Posted on October 05, 2011 at 18:13

there is an internal Vref and external pins for Vref+ and Vref-, I see no means of selecting which

Erik

[ColdWeather]

Posted on October 05, 2011 at 22:25

Depending on the pin count Vref is either just the power supply voltage as is or derives from an external source at the Vref+ pin.