For consistency, use named GCLKs. - `SAM0_GCLK_32KHZ` will always be 2 for samd21 - `SAM0_GCLK_MAIN` will always be 0 So no change in functionality, just makes the code easier to understand.
For consistency, use named GCLKs. - `SAM0_GCLK_32KHZ` will always be 2 for samd21 - `SAM0_GCLK_MAIN` will always be 0 So no change in functionality, just makes the code easier to understand.