47 lines
1.8 KiB
Markdown
47 lines
1.8 KiB
Markdown
# Nordic Semiconductor nRF52 Series
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This is a port of CircuitPython to the Nordic Semiconductor nRF52 series of chips.
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> **NOTE**: There are board-specific READMEs that may be more up to date than the
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generic board-neutral documentation below.
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## Flash
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Some boards have UF2 bootloaders and can simply be flashed in the normal way, by copying
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firmware.uf2 to the BOOT drive.
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For some boards, you can use the `flash` target:
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make BOARD=pca10056 flash
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## Segger Targets
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Install the necessary tools to flash and debug using Segger:
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[JLink Download](https://www.segger.com/downloads/jlink#)
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[nrfjprog linux-32bit Download](https://www.nordicsemi.com/eng/nordic/download_resource/52615/16/95882111/97746)
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[nrfjprog linux-64bit Download](https://www.nordicsemi.com/eng/nordic/download_resource/51386/21/77886419/94917)
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[nrfjprog osx Download](https://www.nordicsemi.com/eng/nordic/download_resource/53402/12/97293750/99977)
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[nrfjprog win32 Download](https://www.nordicsemi.com/eng/nordic/download_resource/33444/40/22191727/53210)
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note: On Linux it might be required to link SEGGER's `libjlinkarm.so` inside nrfjprog's folder.
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## DFU Targets
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run follow command to install [adafruit-nrfutil](https://github.com/adafruit/Adafruit_nRF52_nrfutil) from PyPi
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$ pip3 install --user adafruit-nrfutil
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**make flash** and **make sd** will not work with DFU targets. Hence, **dfu-gen** and **dfu-flash** must be used instead.
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* dfu-gen: Generates a Firmware zip to be used by the DFU flash application.
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* dfu-flash: Triggers the DFU flash application to upload the firmware from the generated Firmware zip file.
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When enabled you have different options to test it:
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* [NUS Console for Linux](https://github.com/tralamazza/nus_console) (recommended)
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* [WebBluetooth REPL](https://glennrub.github.io/webbluetooth/micropython/repl/) (experimental)
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