Using the same VID and PID, the system uses the SAME driver but assigns a new (next in sequence) COM port when it finds a USB. The PSoC UART (COM:) serial driver uses the Silicon ID to differentiate and enumerate each COM device configured with its' Silicon ID. This is the method commonly used by USB devices. Use the PSoC's uniquely assigned Silicon ID.The manufacturing process assigns a build number that is unique.This is so that products built in the thousands if not millions can have the same VID and PID and the product can be differentiated on the same system by way of the unique serial number. In the USB definition, there is a query for the USB device serial number. The most common method is to assign a 'unique' serial number. There may be other methods to use to create and manage a 'uniqueness' in your products. inf may be needed to configure each uniquely numbered PID. inf file is usually dependent on the VID and PID. Once you use up ALL the PIDs you effectively need to purchase another VID. There are only 65536 combination of PIDs to assign. ![]() Making sure at manufacturing time each unit has a unique number.Setting a unique PID has its own challenges. May I ask why you want to set 'unique' PIDs? Infineon MATLAB/Simulink Users Community.AIROCâ„¢ Wi-Fi and Wi-Fi Bluetooth Combos.
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