MicroPython Forum (Archive)

I think the main motivation for circuitpython was to have a version of micropython, that is easier to use for beginners, and is better adapted to Adafruit's own boards, even the ones with very small microcontrollers. Therefore, they're quick to adapt to new hardware, and add features, but they only ...

Oh, and BTW: Viper seems to treat everything as signed integers by default, even constants. So if you want to use constants bigger than 0x7fffffff, you have to enclose them in an uint(). Example: ptr32(0x5000050C)[0] = uint(0x80000000) # turn P0_31 on p.s.: Short version for the REPL to switch LED 1...

Here's an example using the viper code emitter and pointers, to blink the LED1 on the nRF52840 DK. It should work on all versions of Micropython, that have viper enabled. Doesn't need machine.mem. I tested it only on Circuitpython 4.0.0. # Circuitpython 4.0.0 # Blink nRF52840 DK LED1 using direct re...

Did you install the JLINK software for Linux from Segger?
https://www.segger.com/downloads/jlink/ ... tationPack

If not, use nRF Connect to flash.

Here's what I did to get Bluetooth REPL running on a pca10059 dongle (beginning with a fresh git clone): git clone https://github.com/micropython/micropython.git cd micropython git submodule update --init make -C mpy-cross cd boards/nrf ./drivers/bluetooth/download_ble_stack.sh modify bluetooth_conf...

Would you like to add that officially?

Is this with native USB support, or only TTL serial?

Seems to be right, the pins are being set in ports/nrf/modules/machine/uart.c: nrfx_uart_config_t config; . . config.pseltxd = MICROPY_HW_UART1_TX; config.pselrxd = MICROPY_HW_UART1_RX; nrfx_uart_config_t config is from the nrf52 SDK: https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk...

If I had to guess, I'd say that the pin configuration of the uart is in micropython/ports/nrf/boards/pca10056/mpconfigboard.h // UART config #define MICROPY_HW_UART1_RX (8) #define MICROPY_HW_UART1_TX (6) #define MICROPY_HW_UART1_CTS (7) #define MICROPY_HW_UART1_RTS (5) #define MICROPY_HW_UART1_HWFC...

The DK has TxD at P0.06, and RxD at P0.08. The Dongle has LED1 at P0.06 and LED2_R at P0.08. It shouldn't be too complicated to solder wires to the series resistors of the LEDs. On the DK, the RxD and TxD pins of the nRF52840 are connected to the serial port of the onboard Segger debugger, that maps...