Deprecated Development Board
This page documents the Bambino 200E board, an intermediate development board that was discontinued. Current Smoothieware V2 uses the STM32H745-based Smoothieboard Prime. See the main compilation guide for current V2 compilation instructions. # Compiling and Installing the NuttX on Bambino 200E board This tutorial is for Ubuntu 16.04 LTS, but can be adapted for other distros. This guide will walk you through the process of compiling and installing NuttX on the Bambino 200E board. ## Pre-requisites First, install the necessary packages: ```bash sudo apt-get install automake bison build-essential flex gperf git libncurses5-dev libtool libusb-dev libusb-1.0.0-dev ``` ## Work folder Create a workspace directory: ```bash mkdir -p ~/nuttxspace cd ~/nuttxspace ``` ## Toolchain installation Install the ARM GCC Toolchain, ensuring a version >= gcc version 6.3.1 20170620. ### From the repositories ```bash sudo apt-get install gcc-arm-none-eabi ``` ## Cloning NuttX Clone the NuttX repositories: ```bash git clone https://bitbucket.org/nuttx/nuttx git clone https://bitbucket.org/nuttx/apps git clone https://bitbucket.org/nuttx/tools ``` ## Compiling Kconfig Compile kconfig in `tools/kconfig-frontends/`: ```bash cd tools/kconfig-frontends/ ./bootstrap ./configure make sudo make install ``` This installs kconfig in `/usr/local/bin`. ## Compiling NuttX Compile NuttX for the Bambino board: ```bash cd ~/nuttxspace/nuttx/tools ./configure.sh bambino-200e/nsh cd .. make ``` This creates `nuttx.bin` to be flashed onto the Bambino board. ## Flashing to the board Several methods are available for flashing the board. Choose the method that matches your available hardware. ### Using a STLink-v2 with OpenOCD {::nomarkdown} Note: OpenOCD version 0.10 or newer is required.

Connect the ST-Link v2 to the J5 connector on the board and use:

sudo openocd -f interface/stlink-v2.cfg -f target/lpc4350.cfg -c init -c "reset halt" -c "flash write_image erase nuttx.bin 0x14000000"

Use a USB/Serial board connected to Slot 5 and a terminal like “minicom” set to 115200 8n1 to access the NuttX prompt.

Note: OpenOCD version 0.10 or newer is required.

Edit jlink.cfg to use SWD:

sudo vi /usr/local/share/openocd/scripts/interface/jlink.cfg

Add:

transport select swd

Then flash with:

sudo openocd -f interface/jlink.cfg -f target/lpc4350.cfg -c init -c "reset halt" -c "flash write_image erase nuttx.bin 0x14000000"

Or:

sudo openocd -f interface/jlink.cfg -f board/lpc4350_spifi_generic.cfg -c init -c "reset halt" -c "flash write_image erase nuttx.bin 0x14000000"

Using lpc21isp

Install lpc21isp:

sudo apt-get install lpc21isp

Produce a .hex file:

make menuconfig

Select Intel HEX binary format, save, and exit. Then:

make

Flash the firmware:

lpc21isp nuttx.hex /dev/ttyUSB0 115200 12000

Change /dev/ttyUSB0 to match your device.

Install SEGGER’s Software & documentation pack from their website.

Start the debug server and GDB:

JLinkGDBServer -device LPC4330_M4 -endian little -if JTAG -speed 10000 -localhostonly
arm-none-eabi-gdb -ex "set target-charset ASCII" -ex "set print pretty on" -ex "target remote :2331" -ex "set mem inaccessible-by-default off" nuttx

Upload code with GDB:

Ctrl+C
load
monitor reset
continue

Using LPCScrypt

Follow the User Guide from NXP, particularly sections 3.2 and 3.3. Install LPCScrypt from their website.

Enter bootloader mode:

  • Hold the ISP button.
  • Press and release the RESET button.
  • Release the ISP button.

Flash firmware with LPCScrypt:

./scripts/boot_lpcscrypt 
./bin/lpcscrypt program +c /path/to/nuttx/nuttx.bin BankA
./bin/lpcscrypt resetCore

Or:

sleep 1
./bin/lpcscrypt -d /dev/ttyACM0 program +c LPC4330_M4/Smoothie2.bin SPIFI
sleep 1
./bin/lpcscrypt -d /dev/ttyACM0 resetCore

Verifying NuttX Initialization

After flashing nuttx.bin, connect a USB/Serial board to Slot 5 and use “minicom” at 115200 8n1. Press “RESET” and you should see:

NuttShell (NSH)                                                                    
nsh>

Type “help” or “?” for commands.

Testing Ethernet

Compile with:

cd ~/nuttxspace/nuttx/tools
./configure.sh bambino-200e/netnsh
cd ..
make

Flash nuttx.bin, connect to your router, and use telnet with the IP assigned to the board.

Testing USB

Compile with:

cd ~/nuttxspace/nuttx/tools
./configure.sh bambino-200e/usbnsh
cd ..
make

Flash nuttx.bin, connect USB0 to your PC, reset the board, and use “minicom” with /dev/ttyACM0 at 115200 8N1.

Testing SD Card

TODO

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