[Buildroot] [RPi 3B] ttyAMA0 serial port device doesn't exist on raspberry pi 3B
Oscar Gomez Fuente
oscargomezf at gmail.com
Thu Apr 21 14:58:08 UTC 2016
Thank you Peter,
Only you have to add this line in the config.txt file:
device_tree=bcm2710-rpi-3-b.dtb
+dtoverlay=pi3-disable-bt
And copy the file pi3-disable-bt-overlay.dtb to /boot/overlays folder.
This disabled the Bluetooth module.
Best regards.
Oscar Gomez Fuente
On 19 April 2016 at 22:41, Peter Korsgaard <peter at korsgaard.com> wrote:
> >>>>> "Oscar" == Oscar Gomez Fuente <oscargomezf at gmail.com> writes:
>
> > Hi everyone,
> > I'm using buildroot-2016.02 and I'm trying to make a rootfs for the
> > raspberry pi 3B. I've just used the raspberrypi2_defconfig. And
> everything
> > works fine except the serial port /dev/ttyAMA0.... I can see characters
> on
> > the serial port but they are garbage characters...
>
> > This is my config.txt, I'm using the bcm2710-rpi-3-b.dtb file:
>
> I believe ttyAMA0 is connected to the bluetooth module on rpi3 and you
> instead
> need to use ttyS0:
>
> https://www.raspberrypi.org/forums/viewtopic.php?f=29&t=138120
>
> --
> Bye, Peter Korsgaard
>
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