CyU3PUsbSetTxSwing API sets the Tx amplitude used by FX3 on the USB 3.0 interface. You can set the swing in between 0.9V and 1.28V. This value that is set for the swing can be measured at the SSTX+ and SSTX- pins of the FX3. SSTX+ is the A5 pin and SSTX- is the A6 pin of FX3.
Hello Jayakrishna san
Thank you for your reply.