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Unlock procedure for EFM32LG995F256

Psihuki

Hello!

Chip is locked.

I try to erase full chip  and load hex flash into EFM32LG995F256 using:

Windows10, Ulink2, MDK Arm 4.7.4, MDK Arm 5.28a in SWD mode

And i have errors:

In MDK 4.7.4:

invalid ROM table 

Cannot access memory

Flash Erase failed - Target DLL has been cancelled

In MDK 5.28a:

Unsupported access port

Flash Erase failed - Target DLL has been cancelled

Please help, how resolve it.. Setting, methods, software..

I found this procedure for unlock EFM32LG chips. But how to do it in Keil MDK Arm?

Thanks for any help!

Parents
  • 0 in reply to Westonsupermare Pier

    Thanks for your answer. Yes, segger software can do it, BUT need to use Jlink Arm device. 

    I have only Ulink2 device for communication between IDE -USB - Target and looking how do that using Keil MDK Arm + Ulink2 tool + tool supported Ulink2. Simplicity software support Jlink but Ulink2 is not supported..

    I am very surprised that MDK Arm does not have the option that has been in the software packages of other participants in this market for a long time. this is a very necessary functionality and it is not in MDK, while others will be executed in 1 click: " Unlock chip" "Unsecure chip"

Reply
  • 0 in reply to Westonsupermare Pier

    Thanks for your answer. Yes, segger software can do it, BUT need to use Jlink Arm device. 

    I have only Ulink2 device for communication between IDE -USB - Target and looking how do that using Keil MDK Arm + Ulink2 tool + tool supported Ulink2. Simplicity software support Jlink but Ulink2 is not supported..

    I am very surprised that MDK Arm does not have the option that has been in the software packages of other participants in this market for a long time. this is a very necessary functionality and it is not in MDK, while others will be executed in 1 click: " Unlock chip" "Unsecure chip"

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