How to transfer file use BT between i.MX8MP and Android phone?

[#1]

This is an example for user to transfer files between i.MX8MP Linux platform and other devices via Bluetooth.

Environment :

Hardware : i.MX8MP LPDDR4 EVK Board, Android Phone

Software : L6.6.23-2.0.0

Step1 : Build Yocto image and burnt to the SD card or EMMC

1. repo init -u https://github.com/nxp-imx/imx-manifest.git -b imx-linux-scarthgap -m imx-6.6.23-2.0.0.xml
2. repo sync
3. DISTRO=fsl-imx-xwayland MACHINE=imx8mp-lpddr4-evk source imx-setup-release.sh -b build-xwayland
4. Add the following code to "conf/local.conf"

         IMAGE_INSTALL:append = " glibc-gconv-utf-16"

5. bitbake imx-image-full
6. uuu -b emmc_all imx-image-full-imx8mp-lpddr4-evk.rootfs-20240919015845.wic

Step2 : Test steps

1. Boot board with "imx8mp-evk-usdhc1-m2.dtb" file.
2. load Wi-Fi Firmware

          root@imx8mp-lpddr4-evk:~# modprobe moal mod_para=nxp/wifi_mod_para.conf

3. Load BT firmware and enable BT

         root@imx8mp-lpddr4-evk:~# modprobe btnxpuart

         root@imx8mp-lpddr4-evk:~# hciconfig

         

         root@imx8mp-lpddr4-evk:~# hciconfig hci0 up

4. connect  the BT of Android Phone

         root@imx8mp-lpddr4-evk:~# bluetoothctl

         [bluetooth]# default-agent

         [bluetooth]# agent on

         [bluetooth]# discoverable on

         [bluetooth]# scan on

         [bluetooth]# scan off

         

         [bluetooth]# pair 90:F0:52:92:A6:6C

         we need to type Yes on board and click 配对 on phone.

        

        

        [bluetooth]# connect 90:F0:52:92:A6:6C

       

        [Meizu16m]# quit

        

5. Transfer file

         1). Android Phone-> i.MX8MP EVK Board

         root@imx8mp-lpddr4-evk:~# /usr/libexec/bluetooth/obexd -a -n -r /root/ & obexctl

        

         Then select a file on your phone ad choose transfer by Bluetooth.

         

        2).i.MX8MP EVK Board -> Android Phone

         [obex]# connect 90:F0:52:92:A6:6C

        

         [90:F0:52:92:A6:6C]# send /home/root/test.txt

        

Note : 

1. Do not suggestion use IOS phone.

2. If your i.MX8MP board can not scan your BT device, Suggest change the device BT name and run on "scan on" command again.