STMicroelectronics ST-LINK/V2-1 In-circuit Debugger/Programmer Firmware Updater 2.27.15

Corrections:

- Fixed a regression which made the V2J26M15 not functional on few host systems.
Failing boards may be recovered either:
a) by upgrading the firmware to V2J27M15 from another host, not presenting the incompatibility with the V2J26M15
b) or by forcing manually the upgrade mode of the board, when possible. For instance on Nucleo-64 boards, by making a little shortcut between 'RST' and 'SB11' pads behind the board. This way the firmware may be upgraded afterwards, even on host presenting the incompatibility with the V2J26M15. On other ST-LINK/V2-1 boards, refer to the schematics of the board to find how toreset the STM32F103CB microcontroller (solder bridge on 'STM_RST' signal).

Windows Upgrade instructions:

1. Ensure that the ST-LINK/V2 driver is installed first. If not, please follow this LINK for all details.
2. Download the latest ST-LINK/V2-1 firmware upgrade.
3. Extract the archive and run the STLinkUpgrade.exe program.
4. Plug the Nucleo board to your PC using a standard USB cable and wait until the USB enumeration is completed.
5. Press the Connect button.
6. When the ST-LINK/V2 driver is correctly installed, the current ST-LINK/V2 version is displayed.
7. Press Yes button to start the upgrade process.
8. You should now have successfully upgraded the firmware. If you encounter problems, please ask here.

Important notice:

- The application requires the Java Runtime Environment 7u51 (or more recent) being installed.
- On Windows operating system, the ST-LINK/V2-1 board requires a dedicated USB driver to be installed.
- On Linux, the application relies on libusb-1.0, which must be installed separately: for instance on Ubuntu, this is done through the command "sudo apt-get install libusb-1.0".
- On Linux, users must be granted with rights for accessing the ST-LINK USB devices. To do that, it might be necessary to add rules into /etc/udev/rules.d: for instance on Ubuntu, this is done through the command "sudo cp 49-stlinkv2-1.rules /etc/udev/rules.d".

About Firmware Updates:

Applying a newer firmware version than the one already installed on your unit can bring various enhancements, include workarounds for diverse problems encountered by the device, and improve or add newly developed features.

On the other hand, downgrading the firmware version can recover the device's functionality in the event of a software update either turning up faulty or causing the unit's overall performance to drop. However, bear in mind that applying an older firmware isn't recommended and might not always be possible.

When it comes to the update steps, due to the large variety of devices and numerous ways for installing a new firmware, it is recommended that you carefully read and understand the upgrade steps, and consider applying a different firmware only when you have familiarized yourself with the update method.

As the installation process is most of the times quite risky, this step should be taken by users that have the ability to successfully complete the update; regular users may initiate it at their own risk. Moreover, it's best that this task be performed in a steady power environment such as the one ensured by a UPS unit.

Therefore, if you consider applying this release, hit the download button, take into account all the aforementioned aspects, and update the device's firmware. Also make sure you constantly check with our website to ensure that you don't miss a single new release.