2.3 KiB
- make a new boarddef with a variant.h file. Fix pins in that file. In particular: #define PIN_SPI_MISO (46) #define PIN_SPI_MOSI (45) #define PIN_SPI_SCK (47) #define PIN_WIRE_SDA (26) #define PIN_WIRE_SCL (27)
/* per https://docs.platformio.org/en/latest/tutorials/nordicnrf52/arduino_debugging_unit_testing.html
ardunino github is here https://github.com/sandeepmistry/arduino-nRF5 devboard hw docs here: https://infocenter.nordicsemi.com/topic/ug_nrf52840_dk/UG/nrf52840_DK/hw_buttons_leds.html?cp=4_0_4_7_6
https://docs.platformio.org/en/latest/boards/nordicnrf52/nrf52840_dk_adafruit.html
must install adafruit bootloader first! https://learn.adafruit.com/circuitpython-on-the-nrf52/nrf52840-bootloader see link above and turn off jlink filesystem if we see unreliable serial comms over USBCDC
adafruit bootloader install commands (from their readme) kevinh@kevin-server:~/.platformio/packages/framework-arduinoadafruitnrf52/bootloader$ nrfjprog -e -f nrf52 Erasing user available code and UICR flash areas. Applying system reset. kevinh@kevin-server:~/.platformio/packages/framework-arduinoadafruitnrf52/bootloader$ nrfjprog --program pca10056/pca10056_bootloader-0.3.2_s140_6.1.1.hex -f nrf52 Parsing hex file. Reading flash area to program to guarantee it is erased. Checking that the area to write is not protected. Programming device. kevinh@kevin-server:~/.platformio/packages/framework-arduinoadafruitnrf52/bootloader$ nrfjprog --reset -f nrf52 Applying system reset. Run.
install jlink tools from here: https://www.segger.com/downloads/jlink#J-LinkSoftwareAndDocumentationPack
install nrf tools from here: https://www.nordicsemi.com/Software-and-tools/Development-Tools/nRF-Command-Line-Tools/Download#infotabs
examples of turning off the loop call to save power: https://learn.adafruit.com/bluefruit-nrf52-feather-learning-guide/advertising-beacon
example of a more complex BLE service: https://learn.adafruit.com/bluefruit-nrf52-feather-learning-guide/custom-hrm */
// See g_ADigitalPinMap to see how arduino maps to the real gpio#s - and all in // P0 #define LED1 14 #define LED2 13
/* good led ble demo: https://github.com/adafruit/Adafruit_nRF52_Arduino/blob/master/libraries/Bluefruit52Lib/examples/Peripheral/nrf_blinky/nrf_blinky.ino */