How to access J18 uart using hci reset command on cyw920706wcdeval evb board

[ryli_4531716]

I am using cyw920706wcdeval after reset using method in user manual section Appendix D, I think this would be in HCI mode, 

thus, I through J18 uart tx/rx to set try reset command through ubuntu like  "echo -e -n \\x01\\x03\\x0C\\x00 > /dev/ttySx" but not worked

any recommend with using hci reset command test using uart?

thanks

[AnjanaM_61 · Accepted solution]

Hi Ryan liu,

Which manual you are referring?

Could you please confirm what is the use case ?Are you gonna use 20706 in embedded mode or HCI mode?

If you are testing with 20706 EVAL board and PC , you can connect the board to USB port . There will be two COM ports opened - one HCI UART and one Peripheral UART. You have to use HCI UART to send HCI commands.

For a quick test for HCI commands with your 20706 EVAL board, you can use CyBluetool ( CyBluetool (Linux Installer)  , CyBluetool User's Guide  )

Thanks,
Anjana

[ryli_4531716]

Hi AnjanaM_61​

we would like to have test like this page Run CYW20706 in HCI Mode , by connect to another dev board running linux,

connected with uart on J18

current question is , how do we know 20706evb is connected by through J18 uart?

any tool we can use on linux side to check connection? like sent a hci reset command rather than using pyblue tool?

thanks

[AnjanaM_61]

Hello Ryan,

After connecting the HCI UART pins of 20706 with the other eval board (say Dev A) , send HCI reset command from A and see if you are getting a success response.

Regards,
Anjana