Bluetooth is not working with Imx8 Nano evk Board

[shilesh_babu]

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

[hlatafat]

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

[joanxie]

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

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