FTDI VCP Driver
MC1509, MC1600, and Snowboard 2 need FTDI VCP driver.
Windows 8 and 10 automatically install this device driver.
If you are using old Windows you need to manually install FTDI VCP driver.
FTDI device driver: https://www.ftdichip.com/Drivers/VCP.htm
Installation guide: https://www.usb-drivers.org/ft232r-usb-uart-driver.html