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Diego Elio Pettenò dd5d7c86d2 Fix up end of file and trailing whitespace. 
This can be enforced by pre-commit, but correct it separately to make it easier to review.
2020-06-03 10:56:35 +01:00
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device/nrf52 nrf: add support for nrf52833 2020-04-21 12:29:56 +08:00
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freeze ports/nrf: Moving nrf51/52 port to new ports directory 2017-10-04 21:46:48 +02:00
nrfx@3f55e49eb1 update nrfx submodule to v2 2019-12-18 15:39:11 +07:00
peripherals/nrf nrf: nvm: assume sd is not enabled if interrupts are off 2020-05-21 22:04:20 +08:00
supervisor nrf: add ticks (not subticks) to overflow count during reset 2020-05-27 11:28:50 +08:00
.gitignore add CharacteristicBuffer; UART seems to work! 2019-01-07 22:46:20 -05:00
background.c wip; compiles 2020-01-05 23:33:42 -05:00
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ld_defines.c nrf: add support for nrf52833 2020-04-21 12:29:56 +08:00
Makefile Merge remote-tracking branch 'adafruit/master' into wdt-nrf 2020-05-29 10:16:24 -07:00
mpconfigport.h fix calculation of nrf firmware size 2020-04-22 00:52:54 -04:00
mpconfigport.mk Merge remote-tracking branch 'adafruit/master' into wdt-nrf 2020-06-01 15:18:12 -07:00
mphalport.h Supervisor: move most of systick to the supervisor 2019-11-18 11:01:23 -06:00
nrfx_config.h nrf: set WDT priority to 2 2020-05-27 11:28:50 +08:00
nrfx_glue.h nrf: watchdog: use nrfx_wdt driver 2020-05-27 11:28:49 +08:00
nrfx_log.h nrf: Rewrite the SPI common-hal using nrfx 2018-06-25 23:46:34 +02:00
qstrdefsport.h nrf: Remove old qstr defines 2018-06-27 20:52:13 +02:00
README.md address review comments 2019-12-11 15:43:06 -05:00
sd_mutex.c nrf: Use RUN_BACKGROUND_TASKS 2019-08-11 08:53:02 -05:00
sd_mutex.h CharacteristicBuffer: make it be a stream class; add locking 2019-01-19 19:45:35 -05:00

README.md

CircuitPython Port To The Nordic Semiconductor nRF52 Series

This is a port of CircuitPython to the Nordic Semiconductor nRF52 series of chips.

Note

: There are board-specific READMEs that may be more up to date than the generic board-neutral documentation below.

Flash

Some boards have UF2 bootloaders and can simply be flashed in the normal way, by copying firmware.uf2 to the BOOT drive.

For some boards, you can use the flash target:

make BOARD=pca10056 flash

Segger Targets

Install the necessary tools to flash and debug using Segger:

JLink Download

nrfjprog linux-32bit Download

nrfjprog linux-64bit Download

nrfjprog osx Download

nrfjprog win32 Download

note: On Linux it might be required to link SEGGER's libjlinkarm.so inside nrfjprog's folder.

DFU Targets

run follow command to install adafruit-nrfutil from PyPi

$ pip3 install --user adafruit-nrfutil

make flash and make sd will not work with DFU targets. Hence, dfu-gen and dfu-flash must be used instead.

  • dfu-gen: Generates a Firmware zip to be used by the DFU flash application.
  • dfu-flash: Triggers the DFU flash application to upload the firmware from the generated Firmware zip file.

When enabled you have different options to test it: