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A new device usually requires a flash loader and in some cases also a script defining special connect and reset sequences, required by the device. While SEGGER maintains the updating of J-Link software with new devices, some devices might be left out in the process. To enable customers to fill in the gaps on their own, the J-Link DSK is offered. To make creating support as easy as possible, the J-Link DSK comes with the SEGGER flash loader as well as a set of example script files for various devices that require special handling.
- Available for most cores currently supported by J-Link
- Enables ultra high speed programming of devices not yet added to the support database
SEGGER high-performance flash loader
A core component of the DSK is the SEGGER high-performance flash loader. It is responsible for the setup of the device for accessing flash memory via the debug interface of the microcontroller. The flash loader is a piece of code tailored to the supported device that is temporarily downloaded into RAM. It performs the programming of the flash.
Once a flash loader has been added for a new device, it is used by the J-Link flash download feature and flash download is available in all J-Link utilities (J-Link Commander, J-Flash, ...).
The flash loader also enables the unlimited number of breakpoints in flash feature for the device. Direct download into flash memory via an IDE / Ozone is available as well.
Bottom line: The flash loader makes the flash download support behave as if device support had been added by SEGGER directly. For more information about the flash loader and how to write an algorithm, please refer to the SEGGER wiki.
J-Link script files
Some devices require special connect/reset sequences which are not covered by the generic sequences J-Link uses by default. For such devices, a J-Link script file may be needed to have proper device support in J-Link. The J-Link DSK includes examples of J-Link script files for various devices that require special handling. For more information about J-Link script files in general, please refer to the SEGGER wiki.
Third-party device additions Silicon vendors or project managers who have device support files for new devices may require a way to distribute the files that include the support. The files can either be copied to the hard drive of the end user or added by simply running an installer. The J-Link DSK comes with a template for an installer setting this up within Microsoft Windows.
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