60 lines
2.4 KiB
ReStructuredText
60 lines
2.4 KiB
ReStructuredText
|
General information about the WiPy
|
||
|
|
==================================
|
||
|
|
|
||
|
|
WLAN default behaviour
|
||
|
|
----------------------
|
||
|
|
|
||
|
|
When the WiPy boots with the default factory configuration starts in Access Point
|
||
|
|
mode with ``ssid: wipy-wlan`` and ``key: www.wipy.io``.
|
||
|
|
Connect to this network and the WiPy will be reachable at ``192.168.1.1``. In order
|
||
|
|
to gain access to the interactive prompt, open a telnet session to that IP address on
|
||
|
|
the default port (23). You will be asked for credentials:
|
||
|
|
``login: micro`` ``password: python``
|
||
|
|
|
||
|
|
Local file system and SD card
|
||
|
|
-----------------------------
|
||
|
|
|
||
|
|
There is a small internal file system (a drive) on the WiPy, called ``/flash``,
|
||
|
|
which is stored within the external serial flash memory. If a micro SD card
|
||
|
|
is hooked-up and enabled, it is available as ``/sd``.
|
||
|
|
|
||
|
|
When the WiPy boots up, it always boots from the ``boot.py`` located in the
|
||
|
|
``/flash`` file system. If during the boot process the SD card is enabled and
|
||
|
|
it's selected as the current drive then the WiPy will try to execute ``main.py``
|
||
|
|
that should be located in the SD card.
|
||
|
|
|
||
|
|
The file system is accessible via the native FTP server running in the WiPy.
|
||
|
|
Open your FTP client of choice and connect to:
|
||
|
|
|
||
|
|
``ftp://192.168.1.1`` ``user: micro`` ``password: python``
|
||
|
|
|
||
|
|
Boot modes
|
||
|
|
----------
|
||
|
|
|
||
|
|
If you power up normally, or press the reset button, the WiPy will boot
|
||
|
|
into standard mode: the ``boot.py`` file will be executed first, then
|
||
|
|
``main.py`` will run.
|
||
|
|
|
||
|
|
You can override this boot sequence by pulling ``GPIO28`` **up** during reset.
|
||
|
|
The heart beat LED will flash slowly 3 times to signal that safe boot is being
|
||
|
|
requested, and then 3 more times quickly to let you know that safe boot is
|
||
|
|
going to be performed. While safe booting, the WiPy runs the factory firmware
|
||
|
|
and skips the execution of ``boot.py`` and ``main.py``. This is useful to
|
||
|
|
recover from any crash situation.
|
||
|
|
|
||
|
|
The heart beat LED
|
||
|
|
------------------
|
||
|
|
|
||
|
|
By default the heart beat LED flashes once every 5s to signal that the system is
|
||
|
|
alive. This can be overridden through the HeartBeat class:
|
||
|
|
|
||
|
|
``pyb.HeartBeat().disable()``
|
||
|
|
|
||
|
|
There are currently 2 kinds of errors that you might see:
|
||
|
|
|
||
|
|
1. If the heart beat LED flashes quickly, then a Python script(eg ``main.py``)
|
||
|
|
has an error. Use the REPL to debug it.
|
||
|
|
2. If the heart beat LED stays on, then there was a hard fault, you cannot
|
||
|
|
recover from this, the only way out is by pressing the reset switch.
|
||
|
|
|