topic Re: Bluetooth is not working with Imx8 Nano evk Board in i.MX Processors

Bluetooth is not working with Imx8 Nano evk Board

shilesh_babu — Wed, 29 Jul 2020 08:43:14 GMT

Dear Nxp,

I am using Imx8 nano evk board and the bluetooth module is connected to imx uart1.

now i am following below steps to connect ble module but it is showing timeout, what can we the issue??

root@ccu:~# hciattach ttymxc0 any 115200 noflow

Setting TTY to N_HCI line discipline

Device setup complete

root@ccu:~# [ 99.998109] Bluetooth: hci0: command 0x1003 tx timeout

[ 100.004573] Bluetooth: hci0: Frame reassembly failed (-84)

[ 100.010106] Bluetooth: hci0: Frame reassembly failed (-84)

[ 100.015622] Bluetooth: hci0: Frame reassembly failed (-84)

[ 102.014104] Bluetooth: hci0: command 0x1001 tx timeout

[ 104.030104] Bluetooth: hci0: command 0x1009 tx timeout

root@ccu:~# hciconfig -a

hci0: Type: Primary Bus: UART

BD Address: 00:00:00:00:00:00 ACL MTU: 0:0 SCO MTU: 0:0

DOWN

RX bytes:5120 acl:0 sco:0 events:0 errors:0

TX bytes:12 acl:0 sco:0 commands:3 errors:0

Features: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00

Packet type: DM1 DH1 HV1

Link policy:

Link mode: SLAVE ACCEPT

root@ccu:~# hciconfig hci0 up

[ 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)

root@ccu:~# bluetoothctl

Agent registered

[bluetooth]# scan on

No default controller available

Re: Bluetooth is not working with Imx8 Nano evk Board

joanxie — Thu, 30 Jul 2020 08:43:24 GMT

pls refer to the document as below, how about use "hciattach /dev/ttymxc0 any -s xxxxx"?

"https://community.nxp.com/docs/DOC-345974 "

Re: Bluetooth is not working with Imx8 Nano evk Board

hlatafat — Fri, 24 Mar 2023 09:00:36 GMT

I am using the IMX8 8MPLUS evaluation board and I am having same problem 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)

Could you please help me solve this problem?

I can't find anything in the document you suggested.

Thank you

Re: Bluetooth is not working with Imx8 Nano evk Board

NealZhang — Tue, 29 Oct 2024 12:37:34 GMT

Hi， I met the same problem, could you please info how you solve this problem?