- Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube.
- J-Flash lite should already be installed on your system if you have J-Flash installed. It is also part of the J-Link software package and can be found in the J-Link install folder after installation. As the initial question has been answered this thread will be closed now. Best regards, Nino.
- In addition to SEGGER's products for stand-alone programming, J-Flash is a software solution that allows a J-Link to be used as production tool. The software tool J-Flash is a port of every J-Link Plus package and all higher J-Link models. Stand-alone programming software for a variety of microcontrollers and external flashes.
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When using a bootloader (see “Serial Bootloader for the Freedom Board with Processor Expert“), then I usually protect the bootloader FLASH areas, so it does not get accidentally erased by the application ;-). When programming my boards with the P&E Multilink, then the P&E firmware will automatically unlock and erase the chip. That’s not the same if working with the Segger J-Link, as it but requires extra steps.
If I try to re-program the protected bootloader with Segger J-Link (both in CodeWarrior and Eclipse/KDS with GDB), then the download silently fails. The effect is that somehow the application on the board does not match what it should be. Looking at the Console view, it shows that erase has failed (but no real error reported) :-(:
Vampire diaries soundtrack free download zip. J-Link Failed to Erase in CodeWarrior
The GNU ARM Eclipse Segger integration with GDB (e.g. Kinetis Design Studio) is not better: no error sign, the only thing is a hidden ERROR in the Console log of the JLinkGDBServerCL:
ERROR Algo135 Flash Protection Violation about failed FLASH Programming
What I need is to unprotect the memory and then erase it.
The Segger J-Link features a very fast programming. Part of that speed is that the Segger firmware checks each FLASH page if it really needs to be programmed, and only then it erases and reprogrammed that page. So downloading twice the same application actually will not touch the FLASH memory at all. Additionally, it does not do a complete erase of the device: it only programs the pages I’m using in my application. The advantage of that is first speed. And it does not erase the application data I’m using in non-volatile memory (see “Configuration Data: Using the Internal FLASH instead of an external EEPROM“). However, sometimes I really need to clear all my data in FLASH too, and then I need to erase all my FLASH pages on the device. Soulseek free mac.
Segger has product named ‘J-Flash’ which is used to Flash and Erase devices outside of an IDE. There is a free-of-charge ‘Lite’ version available for download from Segger. This utility is not intended to be used for production. With this utility I have a GUI to erase and program my device.
But J-Flash Lite cannot unlock my locked FLASH pages :-(.
If my device is not locked, I can use the CodeWarrior ‘Flash file to target’ (see “Flashing with a Button (and a Magic Wand)“) to erase the device:
Erasing Device with Flash File to Target
Again, this does not work if the device is locked. CodeWarrior has another feature called ‘Target Task’ which can be used to erase/unsecure (if your device is supported), see “Device is secure?“. Black knight armor mod skyrim.
So I need to use a different tool to unlock and unprotect my device: the J-Link Commander.
To unlock the device, Segger has a utility named ‘J-Link Commander’, available from http://www.segger.com/jlink-software.html. The binary is ‘jlink.exe’ on Windows and is a command line utility. To unlock the device use
But it seems that I need to do an unlock, followed by an erase to make it permanent. To erase the device, I can use the same command line utility. But I need to specify the device name first, and then I can erase it (example for the KL25Z):
❗ I need to do the erase operation right after the unlock. a) set device b) unlock and c) erase, otherwise it will fail?
Unlocking and Erasing with J-Link Commander
In order to re-program the protected FLASH sectors with Segger J-Link, I need first to unlock and mass erase the device. For this, there is the J-Link Commander utility which has a command line interface to unprotect and erase the device. For erasing only, the J-Flash (and Lite) is a very useful tool, especially to get a ‘clean’ device memory.
To me, the Segger way and tools are very powerful. In this case, things are very flexible, but not that obvious. So I hope this post can help others to get his device unlocked and erased.
Happy Erasing 🙂
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Segger J Flash Arm Keygen Generator Free
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Segger J Flash Software
Blue_Strike
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Hello,
I bought 2 OK6410 boards with J-LINK. I have the Jlink serial number, and on J-Link ARM V4.22g interface, i can see 5 different type of licenses, but i can't activate that on J-Flash ARM V4.22g even if I did exactely what the manual was describing. Any help please ?
Regards,