24 lines
897 B
Markdown
24 lines
897 B
Markdown
# <img alt="OpenSK logo" src="../img/OpenSK.svg" width="200px">
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## Feitian OpenSK USB Dongle
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### Flashing using DFU
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This board is similar in hardware to the Nordic nRF52840 Dongle. You can use DFU
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to flash it, instructions to enter DFU mode depend on the version of your
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hardware. See
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[Feitian's instructions](https://feitiantech.github.io/OpenSK_USB/). In short:
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* In V1, use a paperclip to press the Reset button through the tiny hole.
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* In V2, push and hold the user button for more than 10 seconds after
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connecting your device.
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Afterwards, you can flash your Feitian OpenSK using DFU following the
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[instructions for the Nordic nRF52840 Dongle](nrf52840_dongle.md#Flashing-using-DFU).
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### Buttons and LEDs
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For both hardware versions, the buttons and LEDs are described in detail in the
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[hardware section](https://feitiantech.github.io/OpenSK_USB/hardware/) of
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Feitian's website.
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