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111 lines
3.0 KiB
Plaintext
111 lines
3.0 KiB
Plaintext
/**
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@defgroup boards_openlabs-kw41z-mini openlabs.co kw41z-mini board
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@ingroup boards
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@brief Support for openlabs-kw41z-mini
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### General information
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This is an open-source development board shipped by openlabs.co with
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source files located at https://openlabs.co/OSHW/kw41z-mini
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A driver for the radio transceiver is available in [#12277](https://github.com/RIOT-OS/RIOT/pull/12277)
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(802.15.4 only).
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@note A version of this board exists that comes with the `M41W8VT4` (256k ROM)
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instead of the `M41W9VT4` (512k ROM). The boards are otherwise identical.
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See @ref boards_openlabs-kw41z-mini-256kib if you happen to have this version.
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### Programming Pinout
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Programming and debugging can be done with a Raspberry Pi (or equivalent)
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running OpenOCD.
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Pi GPIO Pins kw41z-mini
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====================================
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||
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GPIO_19 ------||------- RST
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GPIO_20 ------||------- SWDCLK
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GPIO_21 ------||------- SWDIO
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3.3V -------||------- 3.3V
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GND -------||------- GND
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### Compiling and Flashing
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# install build deps for openocd
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apt install git build-essential libtool automake
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# fetch and build openocd with support for JTAG via RPi or generic GPIO
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git clone https://github.com/beduino-project/openocd.git
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cd openocd
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./bootstrap
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./configure --enable-bcm2835gpio --enable-sysfsgpio
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make -j4 && sudo make install
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# install arm toolchain
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apt install git gcc-arm-none-eabi gdb-arm-none-eabi
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# fetch Riot
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git clone https://github.com/RIOT-OS/RIOT.git
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# build and flash the gnrc_networking example
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cd RIOT/examples/gnrc_networking
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BOARD=openlabs-kw41z-mini CFLAGS+="-DKW41ZRF_ENABLE_LEDS=1" make -j4 flash
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### Debug Uart Pinout
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It is also possible to use the Pi for connecting to the debug uart.
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Pi GPIO Pins kw41z-mini
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==================================
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UART TX ----||------ RXI
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UART RX ----||------ TXO
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GND ------||------ GND
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# enable the uart on the Pi
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echo "enable_uart=1" >> /boot/config.txt
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reboot
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# install serial terminal
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apt install picocom
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# run serial terminal to access debug uart
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picocom -b115200 /dev/serial0
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It is recommended (if possible) to switch the Pi to the better-clocked
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uart for higher baud rates:
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echo "dtoverlay=disable-bt" >> /boot/config.txt
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reboot
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### Notes
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To get a working radio, add #12277 and uncomment the lines in
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`boards/openlabs-kw41z-mini/Makefile.dep`
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The DAC output is on pin `PTB18`.
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ADC input A3 needs a hack applied to `cpu/kinetis/periph/adc.c` to remove
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`ADC_CFG2_MUXSEL_MASK` from `CFG2` to switch to the correct mux setting.
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The PWM peripheral on this board isn't supported in the Kinetis PWM driver yet.
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Use external I2C pullup resistors if I2C is used.
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*/
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