AN144

10

Rev. 2.0

In general, the user initiates communication with the target CP210x device by making a call to

CP210x_GetNumDevices(). This call returns the number of CP210x target devices. This number is used as a

range when calling CP210x_GetProductString() to build a list of devices connected to the host machine.

A handle to the device must first be opened by a call to CP210x_Open() using an index determined from the call to

CP210x_GetNumDevices(). The handle will be used for all subsequent accesses. When I/O operations are

complete, the device handle is closed by a call to CP210x_Close().

When programming a CP2105 device to configure the mode, the following functions must be called in the following

order:

CP210x_SetDeviceMode()

CP210x_SetDualPortConfig()

The remaining functions are provided to allow access to customizable values contained in the CP210x

programmable area.