kopia lustrzana https://github.com/micropython/micropython
55 wiersze
1.8 KiB
ReStructuredText
55 wiersze
1.8 KiB
ReStructuredText
Reset and boot modes
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====================
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There are soft resets and hard resets.
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- A soft reset simply clears the state of the MicroPython virtual machine,
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but leaves hardware peripherals unaffected. To do a soft reset, simply press
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**Ctrl+D** on the REPL, or within a script do::
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import sys
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sys.exit()
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- A hard reset is the same as performing a power cycle to the board. In order to
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hard reset the WiPy, press the switch on the board or::
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import machine
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machine.reset()
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Safe boot
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---------
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If something goes wrong with your WiPy, don't panic! It is almost
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impossible for you to break the WiPy by programming the wrong thing.
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The first thing to try is to boot in safe mode: this temporarily skips
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execution of ``boot.py`` and ``main.py`` and gives default WLAN settings.
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If you have problems with the filesystem you can :ref:`format the internal flash
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drive <wipy_factory_reset>`.
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To boot in safe mode, follow the detailed instructions described :ref:`here <wipy_boot_modes>`.
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In safe mode, the ``boot.py`` and ``main.py`` files are not executed, and so
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the WiPy boots up with default settings. This means you now have access
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to the filesystem, and you can edit ``boot.py`` and ``main.py`` to fix any problems.
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Entering safe mode is temporary, and does not make any changes to the
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files on the WiPy.
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.. _wipy_factory_reset:
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Factory reset the filesystem
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----------------------------
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If you WiPy's filesystem gets corrupted (very unlikely, but possible), you
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can format it very easily by doing::
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>>> import os
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>>> os.mkfs('/flash')
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Resetting the filesystem deletes all files on the internal WiPy storage
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(not the SD card), and restores the files ``boot.py`` and ``main.py`` back
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to their original state after the next reset.
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