CYW20719 design JTAG/SWD interface recommended?

[Anonymous]

Is including a JTAG/SWD interface in a CYW20719 PCB design recommended?  I learned that flashing and debugging can be done with the UART, but just wanted to get a second opinion if somebody thinks that programming/debugging application code with an external debugger is easier or maybe a safe backup to UART.

[Owen_Zhang123 · Accepted solution]

The JTAG interface is avaliable in CYW20719. Please refer to the document in the WICED SDK which is located in the 20719-B1_Bluetooth/doc file: CYW207x9-JTAG-Debugging.pdf and CY9207x9WCDEVAL-Schematic.pdf.

We recommand you to program and debug with the HCI UART.

[Anonymous]

What document in WICED should we refer to for programming the CYW20719  chip in our own design and doing testing?

[Owen_Zhang123]

The device is usually programmed through the HCI UART. You can refer to the CYW920719Q40EVB_01-BaseBoard-Schematic.pdf, CYW920719Q40EVB_01-CarrierBoard-Schematic.pdf and CYW9207x9WCDEVAL-Schematic.pdf for your design.

For the test, you may refer to the mbt tool in wiced_tools/mbt. Refer to the readme.text for how to use the mbt tool.