In order to finally run NuttX on your board, you first have to flash the NuttX binary. As an easy start, it is recommended that you choose a well supported board which also integrates the debugger/programmer in the board itself exposed via USB connector.
A good choice is a Nucleo or Discovery board from ST Microelectronics, as there is a wide choice of suported boards for the STM32 architecture in NuttX. Also, these boards expose an UART port over the USB connection which allows you to interact with NuttX via the interactive console without any extra hardware. For the purposes of this guide, we will use the Nucleo F103RB board.
There are various tools you can use to flash the NuttX binary to your Nucleo board. One common option is to use openocd which supports a large number of programmers and target microcontrollers.
To install the stable version of openocd you can do:
$ apt install openocd
add instructions for other platforms
You should note that openocd project has not made stable releases for long time and support for newer hardware will probably be only available in the latest Git version. To install it you should:
$ git clone git://git.code.sf.net/p/openocd/code openocd $ cd openocd $ ./bootstrap $ ./configure --prefix=install/ $ make install
The resulting installation will be under
openocd/install. You can add
openocd/install/bin to your
Now, to flash the binary to your board, connect the USB cable and do:
$ cd nuttx/ $ openocd -f interface/st-link-v2.cfg -f target/stm32f1x.cfg -c 'init' \ -c 'program nuttx/nuttx.bin verify reset' -c 'shutdown'