Hello,
CX3 (CYUSB3065) supports UART and JTAG debugging. For UART debugging, a UART controller should be present on the PCB and it should be connected to the UART lines of CX3. After this, the prints can be obtained by using host applications like Tera Term. The steps to obtain the debug prints using tera term is mentioned in the following thread:
https://community.cypress.com/t5/USB-Superspeed-Peripherals/CX3-Debugging-with-jlink/td-p/269293
For JTAG debugging, please refer to Section 3 - JTAG debugging of Firmware Projects of the document EzUsbSuite_UG.pdf. This document comes along with FX3 SDK and can be found in the following location after installing the SDK:
C:\Program Files (x86)\Cypress\EZ-USB FX3 SDK\1.3\doc\firmware
Best Regards,
Jayakrishna
