Thanks for your reply.
In that case, is there any way to enter Direct Test Mode over SPI or to start individual tests?
Also, is that the case with all HCI commands or is it vendor specific? For example, can I use WICED HCI commands over SPI, assuming the module supports them?
Just to clarify, I'm not looking to send HCI commands directly over SPI, but rather to ask the MCU to send HCI commands to BLE controller. so I guess that will be in a library code?
Thanks for referring me to the posts. It seems it's a no go for HCI over SPI but one thing I picked up on this thread - Re: SPI control by external MCU - the answer says HCI is not supported on either SPI or UART for BCM20736 but I was able to run the WICED Bluetooth Test Tool on BCM20736S without any code edits. The tool sends HCI commands over UART which suggests HCI is supported.
1 of 1 people found this helpful
As mentioned in the other post-
"outside of the tools we provide and describe in the Manufacturing Bluetooth Test Tool Application Note (SDK 2.x and TAG3/4 Board), we do not support direct HCI layer access on the BCM2073X or BCM2073XS families."
It implies that you cannot send all the HCI commands then.