You could do one thing.
1. Create a new project in WICED with just one file which is empty:
2. Download this project from WICED onto your board.
3. Send HCI Reset (01 03 0C 00) at 115200 baud on the HCI UART.
4. Once you receive command complete, you can send standard HCI commands. Just make sure that the HCI commands are preceded with a 01. The response contains a 04 at the beginning.
"If there is no serial flash, then the CYW207xx device boots into and stays in the Bluetooth HCI mode where it waits for MCU (host) commands". In this mode, only some HCI commands which are required for downloading an application are supported. All HCI commands are not supported.
Where i can locate the HCI UART window to send commands