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- From d5daa09a0c5f5f6acf6f4445f24aa05c09f3b085 Mon Sep 17 00:00:00 2001
- From: David Lechner <david@lechnology.com>
- Date: Mon, 27 Jun 2016 22:52:22 -0500
- Subject: [PATCH] Add critical information for getting pi3-miniuart-bt overlay
- to work
- Bluetooth on RPi 3 using uart1 will not work without setting core_freq=250 in config.txt. This is not
- documented anywhere, so this seems like a good place to start.
- ---
- arch/arm/boot/dts/overlays/README | 4 +++-
- 1 file changed, 3 insertions(+), 1 deletion(-)
- --- a/arch/arm/boot/dts/overlays/README
- +++ b/arch/arm/boot/dts/overlays/README
- @@ -691,7 +691,9 @@ Info: Switch Pi3 Bluetooth function to
- N.B. It is also necessary to edit /lib/systemd/system/hciuart.service
- and replace ttyAMA0 with ttyS0, unless you have a system with udev rules
- that create /dev/serial0 and /dev/serial1, in which case use
- - /dev/serial1 instead because it will always be correct.
- + /dev/serial1 instead because it will always be correct. Furthermore,
- + you must also set core_freq=250 in config.txt or the miniuart will not
- + work.
- Load: dtoverlay=pi3-miniuart-bt
- Params: <None>
-
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