Populate the target and boot the image

Let's start				Develop on Arm® Cortex®-A7
	Unpack the board		Populate the target and boot the image		Execute basic commands		Use the demo launcher

1 Overview

This stage explains how to get, install and boot the STM32MP15 Discovery kit with the Starter Package.

2 Open a terminal

Open a terminal on the host computer.

Ubuntu terminal

All the commands preceded by have to be executed from the host computer terminal.

• Create your STM32MPU workspace directory on the host computer:

 mkdir $HOME/STM32MPU_workspace
 cd $HOME/STM32MPU_workspace

3 Check the host computer Internet access

• An Internet access through http and https protocols must be provided.

The command below enables checking for Internet access through http/https protocols:

 wget -q www.google.com && echo "Internet access over HTTP/HTTPS is OK !" || echo "No internet access over HTTP/HTTPS ! You may need to set up a proxy."

If an 'OK' message is returned, the network is correctly configured.
In this case, skip the rest of this section.

Otherwise, a proxy for http/https protocols is required.
The best solution is to set this proxy through the shell variables http_proxy and https_proxy:

 export http_proxy=http://<MyProxyLogin>:<MyProxyPassword>@<MyProxyServerUrl>:<MyProxyPort>
 export https_proxy=http://<MyProxyLogin>:<MyProxyPassword>@<MyProxyServerUrl>:<MyProxyPort>

Check again the Internet access using the command:

 wget -q www.google.com && echo "Internet access over HTTP/HTTPS is OK !" || echo "No internet access over HTTP/HTTPS ! You may need to set up a proxy."

4 Install the tools

4.1 STM32CubeProgrammer

• Create your STM32MPU tools directory on the host computer:

 mkdir $HOME/STM32MPU_workspace/STM32MPU-Tools
 mkdir $HOME/STM32MPU_workspace/STM32MPU-Tools/STM32CubeProgrammer-x.y.z

• Create a temporary directory in your STM32MPU workspace:

 mkdir $HOME/STM32MPU_workspace/tmp

• Download STM32CubeProgrammer in the following directory : $HOME/STM32MPU_workspace/tmp
  STM32CubeProgrammer v2.12.0 is recommended for ecosystem release v4.1.0 .

• Uncompress the archive file to get the STM32CubeProgrammer installers:

 cd $HOME/STM32MPU_workspace/tmp
 unzip SetupSTM32CubeProgrammer.zip

• Execute the Linux^® installer, which guides you through the installation process. Select "$HOME/STM32MPU-Tools/STM32CubeProgrammer-x.y.z" as installation directory when it is requested by the installer.

 ./SetupSTM32CubeProgrammer-x.y.z.linux

The screenshots below have been obtained with old STM32CubeProgrammer V2.7.0. They are provided as examples and are still valid for higher versions :

Splash screen

Welcome page

Installation path

• Add the STM32CubeProgrammer binary path to your PATH environment variable:

export PATH=$HOME/STM32MPU_workspace/STM32MPU-Tools/STM32CubeProgrammer-x.y.z/bin:$PATH

• Check that the STM32CubeProgrammer tool is properly installed and accessible:

 STM32_Programmer_CLI --h
     -------------------------------------------------------------------
                       STM32CubeProgrammer vx.y.z                  
     -------------------------------------------------------------------

4.2 USB serial link

• Install the libusb on your host computer:

 sudo apt-get install libusb-1.0-0

• To allow STM32CubeProgrammer to access the USB port through low-level commands, proceed as follows:

 cd $HOME/STM32MPU_workspace/STM32MPU-Tools/STM32CubeProgrammer-x.y.z/Drivers/rules
 sudo cp *.* /etc/udev/rules.d/

5 Download the image

• Create your STM32MP1 Starter Package directory on the host computer:

 mkdir $HOME/STM32MPU_workspace/STM32MP1-Ecosystem-v4.1.0
 mkdir $HOME/STM32MPU_workspace/STM32MP1-Ecosystem-v4.1.0/Starter-Package
 cd $HOME/STM32MPU_workspace/STM32MP1-Ecosystem-v4.1.0/Starter-Package

• Download the STM32MP1-Ecosystem-v4.1.0 Starter Package into the following directory:
  $HOME/STM32MPU_workspace/STM32MP1-Ecosystem-v4.1.0/Starter-Package
• Uncompress the tarball file to get the binaries for the different partitions of the image, and the Flash layout files

 tar xvf en.FLASH-stm32mp1-openstlinux-5.15-yocto-kirkstone-mp1-v22.11.23.tar.gz

6 Populate the SDCard

• Set the boot switches (located at the back of the board) to the off position

boot switches position to flash the board

• Connect USB Type A to Type C cable between PC and CN7/USB_OTG port of the STM32MP157x-DK2 board
• Power up the board
• Press the reset button to reset the board
• Launch STM32CubeProgrammer to get the GUI

STM32CubeProgrammer GUI

• On the right, select USB (not STLINK, set by default) in the connection picklist and click on "Refresh" button. Serial Number is displayed if USB is detected. Click on "Connect"

Select USB for connection with board

• Select "Open File" tab and select the "FlashLayout_sdcard_stm32mp157c-dk2-trusted.tsv" file in the Starter Package installation folder ("$HOME/STM32MPU_workspace/STM32MP15-Ecosystem-v2.y.z/Starter-Package/stm32mp1-openstlinux-5.15-yocto-kirkstone-mp1-v22.11.23/images/stm32mp1/flashlayout_st-image-weston/trusted")

• Fill the "Binaries Path" by browsing up to folder $[Starter_Pack_Path]/images/stm32mp1

open .tsv and fill Binaries Path

• Click on "Download" to start the flashing process.
• Progress is displayed with progress bar till completion popup message.

7 Boot the board

• Set the boot switches (located at the back of the board) to the ON position

boot switches position to boot the board

• Power up the board
• Press the "Reset "button to reset the board
• After few seconds, the board starts and automatically goes through the following screens

Warning

Be patient for very first boot after flash which takes about 2 min. It's less than 20s afterward

UBoot splash screen

Linux splash screen

Weston desktop

GTK demo launcher

• If the board power supply doesn't supply enough current (3A), the red LED indicates the issue following the rules below:

blink	console message	boot process
2 times	WARNING 500mA power supply detected Current too low, use a 3A power supply!	Continue and red LED stays ON
3 times	WARNING 1500mA power supply detected Current too low, use a 3A power supply!	Continue and red LED stays ON
forever	ERROR USB TYPE-C connection in unattached mode Check that USB TYPE-C cable is correctly plugged	stop
forever	USB TYPE-C charger not compliant with USB specification	stop