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Hello,
I am trying to use configuration options in config.txt to enable high speed UART.
(as listed here: http://elinux.org/RPi_config.txt)
My /boot/config.txt
init_uart_baud=1000000
init_uart_clock=16000000
With these settings I am hoping to achieve 1Mbps Uart? but I cant seem to get this working?
Note I have disabled the serial console in boot.txt and /etc/inittab
Testing with stty, yields the following (is there a better way?)
root@raspberrypi:~# stty -F /dev/ttyAMA0 115200
root@raspberrypi:~# stty -F /dev/ttyAMA0 1000000
stty: /dev/ttyAMA0: unable to perform all requested operations
Am I missing something? Do I need to recompile the kernel?
System spec:
Base image is the current Raspbian (2012-08-16-wheezy-raspbian)
# uname -a
Linux raspberrypi 3.2.27+ #102 PREEMPT Sat Sep 1 01:00:50 BST 2012 armv6l GNU/Linux
root@raspberrypi:~# /opt/vc/bin/vcgencmd version
Aug 25 2012 01:12:00
Copyright (c) 2012 Broadcom
version 333349 (release)
System fully upgraded today using apt-get update and dist-upgrade.
Thanks in advance.
Stonie.
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