147 lines
4.8 KiB
ReStructuredText
147 lines
4.8 KiB
ReStructuredText
.. todo::
|
|
Create new subsections as needed.
|
|
|
|
===
|
|
FAQ
|
|
===
|
|
|
|
NSH Tricks
|
|
==========
|
|
|
|
How to increase the command line length?
|
|
----------------------------------------
|
|
|
|
You can increase the Max command line length from 64 to other value,
|
|
this way::
|
|
|
|
Application Configuration --->
|
|
NSH Library --->
|
|
Command Line Configuration --->
|
|
(64) Max command line length
|
|
|
|
How do I enable editing support on the command line?
|
|
----------------------------------------------------
|
|
|
|
You need to change Command Line Editor from "Minimal readline" to
|
|
"Command Line Editor", this way::
|
|
|
|
Application Configuration --->
|
|
NSH Library --->
|
|
Command Line Configuration --->
|
|
Command Line Editor (Command Line Editor) --->
|
|
|
|
How to enable command line history?
|
|
-----------------------------------
|
|
|
|
You need to enable these options in the menuconfig::
|
|
|
|
Application Configuration --->
|
|
System Libraries and NSH Add-Ons --->
|
|
-*- readline() Support --->
|
|
[*] Command line history
|
|
(80) Command line history length
|
|
(16) Command line history records
|
|
|
|
Note: If you are using the "Command Line Editor" instead of the "readline"
|
|
then you need to use this other option::
|
|
|
|
Application Configuration --->
|
|
System Libraries and NSH Add-Ons --->
|
|
-*- EMACS-like Command Line Editor --->
|
|
[*] Command line history
|
|
(80) Command line history length
|
|
(16) Command line history records
|
|
|
|
How to enable autocomplete on the command line?
|
|
-----------------------------------------------
|
|
|
|
You need to enable these options in the menuconfig::
|
|
|
|
Application Configuration --->
|
|
System Libraries and NSH Add-Ons --->
|
|
-*- readline() Support --->
|
|
[*] Tab completion
|
|
(64) Maximum built-in matches
|
|
(64) Maximum external command matches
|
|
|
|
Note: autocomplete is not enabled when "Command Line Editor" instead of the
|
|
"readline".
|
|
|
|
How to interrupt an NSH Application using Ctrl^C ?
|
|
--------------------------------------------------
|
|
|
|
You need to enable these options in the menuconfig::
|
|
|
|
RTOS Features --->
|
|
Signal Configuration --->
|
|
[*] Default signal actions --->
|
|
[*] SIGINT and SIGKILL
|
|
Device Drivers --->
|
|
Serial Driver Support --->
|
|
[*] Serial TERMIOS support
|
|
[*] Support SIGINT
|
|
(0x03) Serial parse SIGINT characters
|
|
|
|
Board Initialization
|
|
====================
|
|
|
|
How to start directly my application instead starting NSH?
|
|
----------------------------------------------------------
|
|
|
|
You can start you application directly instead of starting the default
|
|
NSH terminal. Lets support your application is called "hello", then you
|
|
will modify the ENTRYPOINT to call "hello_main" instead of "nsh_main"::
|
|
|
|
RTOS Features --->
|
|
Tasks and Scheduling --->
|
|
(hello_main) Application entry point
|
|
|
|
Why after putting my application on ENTRYPOINT it stops to work?
|
|
----------------------------------------------------------------
|
|
|
|
When you replace the ENTRYPOINT from "nsh_main" to your application some
|
|
initialization flow are changed, for instance the NSH_ARCHINIT is not
|
|
executed anymore and so some drivers initialization that are called from
|
|
it also stops to work.
|
|
|
|
You can fix it enabling the Board Late Initialization that will replace the
|
|
NSH_ARCHINIT to call those drivers initialization. Just enable it::
|
|
|
|
RTOS Features --->
|
|
RTOS hooks --->
|
|
[*] Custom board late initialization
|
|
|
|
Also you need to disable the architecture-specific initialization::
|
|
|
|
Application Configuration --->
|
|
NSH Library --->
|
|
[ ] Have architecture-specific initialization
|
|
|
|
Why isn't /dev/ttySx created when using USB Console even when UART is enabled?
|
|
------------------------------------------------------------------------------
|
|
|
|
If you don't use serial console then /dev/ttyS0 will not be created,
|
|
even if you enable the UART peripheral at "System Type".
|
|
|
|
You can fix it enabling the Serial Upper-Half Driver::
|
|
|
|
Device Drivers --->
|
|
Serial Driver Support --->
|
|
[*] Enable standard "upper-half" serial driver
|
|
|
|
Network
|
|
=======
|
|
|
|
How to detect Ethernet cable connection/disconnection?
|
|
------------------------------------------------------
|
|
|
|
NuttX supports Ethernet connection/disconnection events from Ethernet PHY
|
|
using signals (see ``nuttx/drivers/net/phy_notify.c``).
|
|
The network monitor thread at apps/netutils/netinit (see
|
|
``CONFIG_NETINIT_MONITOR``) will handle taking the network down if the cable
|
|
is unplugged and bringing it back up when the cable is restored.
|
|
It is important to note that your Ethernet controller driver of your
|
|
MCU needs to support CONFIG_ARCH_PHY_INTERRUPT (and implement
|
|
``arch_phy_irq()``).
|
|
|