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CP2102 Datasheet(PDF) 3 Page - Silicon Laboratories |
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CP2102 Datasheet(HTML) 3 Page - Silicon Laboratories |
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3 / 45 page  AN721 Rev. 1.2 3 Figure 1. Default VID and PID Values for Driver vs Firmware The steps to customize the CP210x USB devices are as follows: 1. Request a unique PID from Silicon Labs for your new product design: http://www.silabs.com/RequestPID, or obtain a VID/PID from usb.org. 2. Download the VCP driver appropriate for your operating system here: http://www.silabs.com/products/mcu/pages/usbtouartbridgevcpdrivers.aspx. The stock VCP driver from the website should match the default VID and PID in the CP210x. The VCP driver must be installed with matching VID and PID to communicate to the device. 3. Run the Device Customization Software program described in the next sections to change the descriptors in the device. 4. (USBXpress Users Only): If the desired driver is USBXpress, it can be download here: www.silabs.com/usbxpress. This driver allows direct access using Silicon Labs API commands to control the device. When this driver is initially downloaded it will not have the matching VID/PID of the CP210x devices. See Figure 1 for the default driver and device VID/PID. 5. Use the USB Driver Customization Wizard and instructions in AN220SW and AN220 “USB Driver Customization” https://www.silabs.com/Support%20Documents/TechnicalDocs/an220.pdf to update the driver for the new PID and any other descriptors that have been changed from Step 3. Be certain to use the version of AN220 software which corresponds to the correct driver when generating the modified drivers. Take care to verify that these customized drivers are completely correct, as none of the files in the driver package can change in any way once the driver has been certified. If you do not have the correct version of the AN220 software, please contact our support team www.silabs.com/contactsupport. Update either the VCP driver (COM port) or USBXpress driver (API commands) to match the device. The USB Driver Customization Wizard customizes the driver by changing the hardware installation files (.inf) in the driver package. The strings contained in the .inf files affect what is displayed in the “Found New Hardware Wizard” dialogs, Device Manager and the Registry. Any changes to the Windows® installation .inf files will require new Windows Hardware Quality Labs (WHQL) tests. Stock VCP Driver CP2101-CP2104: VID: 0x10C4 PID: 0xEA60 CP2105: VID: 0x10C4 PID: 0xEA70 CP2108: VID: 0x10C4 PID: 0xEA71 Default Firmware in Device CP2101-CP2104: VID: 0x10C4 PID: 0xEA60 CP2105: VID: 0x10C4 PID: 0xEA70 CP2108: VID: 0x10C4 PID: 0xEA71 Stock USBXPress Driver CP2101-CP2104: VID: 0x10C4 PID: 0xEA61 |
Similar Part No. - CP2102 |
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Similar Description - CP2102 |
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