A friend of mine, David Sparks, is using a SAMD based board (a Seeedstudio XIAO) to be a real time clock. You can see his project here: https://github.com/IowaDave/SAMD21-RTC-Clock. The SAMD has a Real Time Counter which can be configured as a Real Time Clock (RTC=RTC!) eliminating the need for a second component. However when run …
Month: October 2022
The SAMD21 has 7 clock sources. Each clock source can drive one or more of the nine Generic Clock Generators. The generic clock generators have a programmable clock divider, and each of the 37 peripheral clocks can be fed from one of the clock generators. This is a somewhat formidable mess. The Arduino boards that …