1*a1a85659SMatthias Ringwald# BTstack port for Zephyr Controller with HCI UART Firmware Connectected To POSIX System 2*a1a85659SMatthias Ringwald 3*a1a85659SMatthias RingwaldThe main difference to the regular posix-h4 port is that that the Zephyr Contoller uses 1000000 as baud rate. 4*a1a85659SMatthias RingwaldIn addition, the port defaults to use the fixed static address stored during production. 5*a1a85659SMatthias Ringwald 6*a1a85659SMatthias Ringwald## Prepare Zephyr Controller 7*a1a85659SMatthias Ringwald 8*a1a85659SMatthias RingwaldPlease follow [this](https://devzone.nordicsemi.com/blogs/1059/nrf5x-support-within-the-zephyr-project-rtos/) blog post about how to compile and flash `samples/bluetooth/hci_uart` to a connected nRF5 dev kit. 9*a1a85659SMatthias Ringwald 10*a1a85659SMatthias RingwaldIn short: you need to install an arm-none-eabi gcc toolchain and the nRF5x Command Line Tools incl. the J-Link drivers, checkout the Zephyr project, and flash an example project onto the chipset: 11*a1a85659SMatthias Ringwald 12*a1a85659SMatthias Ringwald * Install [J-Link Software and documentation pack](https://www.segger.com/jlink-software.html). 13*a1a85659SMatthias Ringwald * Get nrfjprog as part of the [nRFx-Command-Line-Tools](http://www.nordicsemi.com/eng/Products/Bluetooth-low-energy/nRF52-DK). Click on Downloads tab on the top and look for your OS. 14*a1a85659SMatthias Ringwald * [Checkout Zephyr and install toolchain](https://www.zephyrproject.org/doc/getting_started/getting_started.html). We recommend using the [arm-non-eabi gcc binaries](https://launchpad.net/gcc-arm-embedded) instead of compiling it yourself. At least on OS X, this failed for us. 15*a1a85659SMatthias Ringwald 16*a1a85659SMatthias Ringwald * In *samples/bluetooth/hci_uart*, compile the firmware for nRF52 Dev Kit 17*a1a85659SMatthias Ringwald 18*a1a85659SMatthias Ringwald $ make BOARD=nrf52_pca10040 19*a1a85659SMatthias Ringwald 20*a1a85659SMatthias Ringwald * Upload the firmware 21*a1a85659SMatthias Ringwald 22*a1a85659SMatthias Ringwald $ make flash 23*a1a85659SMatthias Ringwald 24*a1a85659SMatthias Ringwald * For the nRF51 Dev Kit, use `make BOARD=nrf51_pca10028`. 25*a1a85659SMatthias Ringwald 26*a1a85659SMatthias Ringwald## Configure serial port 27*a1a85659SMatthias Ringwald 28*a1a85659SMatthias RingwaldTo set the serial port of your Zephyr Controller, you can either update config.device_name in main.c or 29*a1a85659SMatthias Ringwaldalways start the examples with the `-u /path/to/serialport` option. 30*a1a85659SMatthias Ringwald 31*a1a85659SMatthias Ringwald## Compile Examples 32*a1a85659SMatthias Ringwald 33*a1a85659SMatthias Ringwald $ make 34*a1a85659SMatthias Ringwald 35*a1a85659SMatthias Ringwald## Run example 36*a1a85659SMatthias Ringwald 37*a1a85659SMatthias RingwaldJust run any of the created binaries, e.g. 38*a1a85659SMatthias Ringwald 39*a1a85659SMatthias Ringwald $ ./le_counter 40*a1a85659SMatthias Ringwald 41*a1a85659SMatthias RingwaldThe packet log will be written to /tmp/hci_dump.pklg 42*a1a85659SMatthias Ringwald 43