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Improved README

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Kevin Townsend 2018-02-13 11:50:51 +01:00
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# Setup
The `feather52840` board is currently based on the `PCA10056` development
board from Nordic Semiconductors, since commercial modules are not yet
available for the nRF52840.
The difference between the `pca10056` and `feather52840` board support
packages is that no bootloader is present on the `pca10056` (a HW debugger
like a Segger J-Link is required to flash firmware images), whereas the
`feather52840` package uses a serial bootloader, with a slightly different
flash layout to account for the bootloader's presence.
Both targets run on the same hardware and assume the same pinouts.
The `feather52840` board support package will be updated at a later date
to reflect any pin changes in the final Feather form-factor HW.
## Installing CircuitPython submodules
Before you can build, you will need to run the following commands once, which