Unable to enable the bluetooth module for Imx8 board (timeout)

hlatafat — Mon, 27 Mar 2023 07:50:19 GMT

I am using the NXP evaluation board IMX 8MPLUS with combined wifi and bluetooth Azureware chip (AW-CM276MA PUR) . I am having trouble enabling the Bluetooth module.

I followed the instruction from the document: “UM11483 Getting Started with NXP Wireless Modules for i.MX 8M-Quad Platforms”.

I could successfully enable the wireless module. But for the Bluetooth, first I execute a command “hciattach /dev/ttymxc2 any 115200 flow” as suggested in the document and the result is as expected:

Setting TTY to N_HCI line discipline 

Device setup complete

After that I run the command “hciconfig hci0 up” but with timeout errors:

[ 132.478107] Bluetooth: hci0: command 0x1003 tx timeout 

[ 134.494103] Bluetooth: hci0: command 0x1001 tx timeout 

[ 136.510105] Bluetooth: hci0: command 0x1009 tx timeout 

Can't init device hci0: Connection timed out (110)

I read manuals very carefully, searched the nxp community and did whatever I could think of without success. Could you please help me solve this problem?

Thank you in advance

Re: Unable to enable the bluetooth module for Imx8 board (timeout)

Zhiming_Liu — Tue, 28 Mar 2023 03:48:29 GMT

The uart used by bluetooth is different between i.MX8MP and i.MX8MQ, you can try /dev/ttymxc0

Re: Unable to enable the bluetooth module for Imx8 board (timeout)

hlatafat — Tue, 28 Mar 2023 08:36:55 GMT

Thanks a lot Qmiller.

That solved my problem.

i.MX ProcessorsのトピックUnable to enable the bluetooth module for Imx8 board (timeout)

Unable to enable the bluetooth module for Imx8 board (timeout)

Re: Unable to enable the bluetooth module for Imx8 board (timeout)

Re: Unable to enable the bluetooth module for Imx8 board (timeout)