PYBFLASH lost file

The official pyboard running MicroPython.
This is the reference design and main target board for MicroPython.
You can buy one at the store.
Target audience: Users with a pyboard.
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WaterLee
Posts: 4
Joined: Sun Aug 04, 2019 4:19 pm

PYBFLASH lost file

Post by WaterLee » Tue Oct 15, 2019 5:54 pm

I copy some files to the PYBFLASH, and I succeed. Then I disconnect the usb wire. When I connect the usb wire, the files are lost. MacOS Catalina.
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Roberthh
Posts: 3667
Joined: Sat May 09, 2015 4:13 pm
Location: Rhineland, Europe

Re: PYBFLASH lost file

Post by Roberthh » Tue Oct 15, 2019 8:22 pm

Unlike you may used to with e.g. a smartphone, you must not simply pull the USB cable. You have to eject the PYBFLASH drive, which ensures, that the data is actually written. On the PyBoard is a red led that lights up while data is written to flash. Never pull USB while the red LED is still on.
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WaterLee
Posts: 4
Joined: Sun Aug 04, 2019 4:19 pm

Re: PYBFLASH lost file

Post by WaterLee » Sun Feb 02, 2020 2:25 pm

Thanks very much.
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