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MicroPython.Pyboard.mise-a-jour (voir la source)
Version du 18 avril 2016 à 19:16
, 18 avril 2016 à 19:16→Préparatifs
{{ambox-stop|text=Le pontage '''DFU''' doit rester en place durant toute l'opération de mise-à-jour.}}
{{ambox-stop|text=Le pontage '''DFU''' doit rester en place durant toute l'opération de mise-à-jour.}}
=== Installer dfu-util ===
First, install dfu-util via your package manager.
== Mise-à-jour (Flashing) ==
=== Lister les périphériques DFU ===
You can list all DFU-capable devices using the {{fname|-l}} argument:
<nowiki>$ sudo dfu-util -l
dfu-util 0.5
(C) 2005-2008 by Weston Schmidt, Harald Welte and OpenMoko Inc.
(C) 2010-2011 Tormod Volden (DfuSe support)
This program is Free Software and has ABSOLUTELY NO WARRANTY
dfu-util does currently only support DFU version 1.0
Found DFU: [0483:df11] devnum=0, cfg=1, intf=0, alt=0, name="@Internal Flash /0x08000000/04*016Kg,01*064Kg,07*128Kg"
Found DFU: [0483:df11] devnum=0, cfg=1, intf=0, alt=1, name="@Option Bytes /0x1FFFC000/01*016 e"
Found DFU: [0483:df11] devnum=0, cfg=1, intf=0, alt=2, name="@OTP Memory /0x1FFF7800/01*512 e,01*016 e"
Found DFU: [0483:df11] devnum=0, cfg=1, intf=0, alt=3, name="@Device Feature/0xFFFF0000/01*004 e"
</nowiki>
=== Backup ===
If desired, backup the original firmware (this doesn't work with dfu-util 0.5, but does with 0.7 or newer). Previous releases of micropython are available from: [http://micropython.org/download/ http://micropython.org/download/] so performing a backup shouldn't be necessary.
<nowiki>$ sudo dfu-util --alt 0 --upload pyboard-original.dat -s:524288
(...)
Starting upload: [#######] finished!</nowiki>
=== Un seul périphérique DFU autorisé! ===
If you have other DFU capable devices connected to you machine (for example an Apple Magic Mouse), and you receive the following message:
More than one DFU capable USB device found, you might try '--list' and then disconnect all but one device
you may want to disconnet all other devices, or specify which device's firmware you want to edit by passing either --device or the shorter -d flag to dfu-util. Example:
$ sudo dfu-util --alt 0 -D pybv10-2014-05-19-v1.0.1-24-g5cdff5f.dfu -d 0483
=== Téléverser le nouveau FirmWare ===
Then write the downloaded firmware to the pyboard:
<nowiki>$ sudo dfu-util --alt 0 -D pybv10-2014-05-19-v1.0.1-24-g5cdff5f.dfu
(...)
done parsing DfuSe file</nowiki>
After the the program finished, disconnect the pyboard from USB and remove the jumper between the DFU and the 3.3v ports.
=== Quitter le mode DFU ===
After the the program finished, disconnect the pyboard from USB and remove the jumper between the DFU and the 3.3v ports.
== Restaurer un ancien FirmWare ==
If you need to restore the original firmware, use the following command:
$ sudo dfu-util --alt 0 -D pyboard-original.dat -d 0483:df11 -s 0x8000000
== Alternative: pydfu ==
There is an alternative DFU programmer that is written in pure Python. It can be found here: [https://github.com/micropython/micropython/blob/master/tools/pydfu.py https://github.com/micropython/micropython/blob/master/tools/pydfu.py].
It requires the PyUSB package.
To use pydfu:
<nowiki>$ python pydfu.py -u <firmware.dfu></nowiki>
This will copy the given firmware file to the pyboard. pydfu is much faster than dfu-util.
This will restore everything, including the internal flash filesystem.
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