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Misc SYSLOG and STM32 serial fixes

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5576 42af7a65-404d-4744-a932-0658087f49c3
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patacongo 2013-01-28 17:43:55 +00:00
parent 6962e63f85
commit 4aae1d7b30
1 changed files with 1 additions and 31 deletions
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32
configs/stm32f4discovery/README.txt
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@ -1254,40 +1254,10 @@ Where <subdir> is one of the following:
CONFIG_CDCACM=y : The CDC/ACM driver must be built
CONFIG_CDCACM_CONSOLE=y : Enable the CDC/ACM USB console.
However, that configuration does not work. It fails early probably because
of some dependency on /dev/console before the USB connection is established.
But there is a work around for this that works better (but has some side
effects). The following configuration will also create a NSH USB console
but this version will will use /dev/console. Instead, it will use the
normal /dev/ttyACM0 USB serial device for the console:
CONFIG_STM32_OTGFS=y : STM32 OTG FS support
CONFIG_USART2_SERIAL_CONSOLE=n : Disable the USART2 console
CONFIG_USBDEV=y : USB device support must be enabled
CONFIG_CDCACM=y : The CDC/ACM driver must be built
CONFIG_CDCACM_CONSOLE=n : Don't use the CDC/ACM USB console.
CONFIG_NSH_USBCONSOLE=y : Instead use some other USB device for the console
The particular USB device that is used is:
CONFIG_NSH_USBCONDEV="/dev/ttyACM0"
NOTE 1: When you first start the USB console, you have hit ENTER a few
NOTE: When you first start the USB console, you have hit ENTER a few
times before NSH starts. The logic does this to prevent sending USB data
before there is anything on the host side listening for USB serial input.
Now the side effects:
NOTE 2. When any other device other than /dev/console is used for a user
interface, linefeeds (\n) will not be expanded to carriage return /
linefeeds (\r\n). You will need to set your terminal program to account
for this.
NOTE 3: /dev/console still exists and still refers to the serial port. So
you can still use certain kinds of debug output (see include/debug.h, all
of the interfaces based on lib_lowprintf will work in this configuration).
9. USB OTG FS Host Support. The following changes will enable support for
a USB host on the STM32F4Discovery, including support for a mass storage
class driver: