Removing the link between the console output of the system and the UART interface

Products & Technology ReSpeaker
3

Hi there,



please try below instructions. You have to use the 20180801 firmware.


  1. please check rk3229-respeaker-v2.dtb is inside of /boot/dtb/4.4.138-respeaker-r0/
  2. edit the uEnv.txt file as below

    respeaker@v2:~$ sudo nano /boot/uEnv.txt

    uname_r=4.4.138-respeaker-r0

    earlycon=uart8250,mmio32,0x11020000

    console=ttyS1,115200n8 rw

    #uuid=

    dtb=rk3229-respeaker-v2.dtb

    #dtb=

    cmdline=coherent_pool=1M quiet init=/lib/systemd/systemd

    ##enable Flasher:

    ##make sure, these tools are installed: dosfstools rsync

    #cmdline=init=/opt/scripts/init-eMMC-flasher-respeaker.sh


  3. reboot the respeaker:

    respeaker@v2:~$ sudo reboot



    thanks.