Configuration of the USB Host CDC Class.

CDC Class Configuration File

The USB Host CDC Class configuration file USBH_Config_CDC.h contains the following settings:

Number of concurrent CDC Devices in system specifies the number of CDC devices that will be supported.
CDC Interrupt In Pipe (modem and error status reception) handling Thread Stack Size specifies the thread stack size for the thread that polls the interrupt endpoint of the CDC.
The default CDC Interrupt In Pipe handling Thread priority is osPriorityAboveNormal. This priority can be changed by changing USBH_CDC_INT_IN_THREAD_PRIORITY define in this configuration file. This priority needs to be high enough so that USB Stack can react to USB events in a timely manner. Due to this requirement it is recommended to keep this setting at default.