2020-08-02 11:16 AM
Hello everyone!
I'm want to use the internal reference voltage buffer of the mcu stm32g431kb as input with comparator, but when i checked the reference manual they say VEREFBUF must kept disabled because no VREF+ pin in 32 pin package!!
I don't want the VREF+ pin, can i use the VEREFBUF internally with comparator??
Thanks.
2020-08-02 12:45 PM
In that package, VREF+ is bonded directly to VDDA. You can't use any configuration that requires the two to be different. This means you can't use VREFBUF output as a voltage reference.