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dphys edited this page Aug 10, 2018 · 4 revisions
  1. Update the uImage and sun8i-r16-clockworkpi-cpi3.dtb under the boot partition in the SD card and reboot GS.
  2. Copy the Bluetooth chip firmware bcm43438a0.hcd to /lib/firmware/brcm/
  3. Copy the firmware burning program brcm_patchram_plus to /usr/bin/ and add the executable permission “chmod +x /usr/bin/brcm_patchram_plus”.
  4. sudo apt-get install bluez
  5. Load the Bluetooth driver with the following command:
sudo rfkill block 0
sudo rfkill unblock 0
sudo brcm_patchram_plus --patchram /lib/firmware/brcm/bcm43438a0.hcd --enable_hci --bd_addr aa:22:33:44:55:66 --no2bytes --tosleep 5000 /dev/ttyS1

"--bd_addr aa:22:33:44:55:66" is to set the Bluetooth MAC address, recommended to read the wifi MAC address and change the last bit as the Bluetooth MAC address.

If the driver loads successfully, you can see "Done setting line discpline", currently it takes about 20 seconds (this is an issue).

After loading, you can see the Bluetooth device with hciconfig:

cpi@clockworkpi:~$ hciconfig 
hci0:   Type: Primary  Bus: UART
        BD Address: B0:F1:EC:2D:07:5B  ACL MTU: 1021:8  SCO MTU: 64:1
        UP RUNNING PSCAN 
        RX bytes:1193 acl:1 sco:0 events:64 errors:0
        TX bytes:2339 acl:2 sco:0 commands:54 errors:0

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