Does the SAMD21 have a separate VBATT pin just for the built-in RTC? I did a search on the datasheet and it came out empty. You might have to re-initialize the TFTP display when the main power goes down
Does the SAMD21 have a separate VBATT pin just for the built-in RTC? I did a search on the datasheet and it came out empty. You might have to re-initialize the TFTP display when the main power goes down