func Driver() *uart.Driver {
	if driver == nil {
		driver = internal.UART(3)
	}
	return driver
}
Driver returns a ready to use driver for UART3 peripheral.
package uart3
import (
	_ "unsafe"
	"github.com/embeddedgo/kendryte/hal/uart"
	"github.com/embeddedgo/kendryte/hal/uart/internal"
)
var driver *uart.Driver