Vybrid tower board, can't download >128KB code into SRAM via CMSIS-DAP (DS-5)

[garrulus]

Using DS-5 / CMSIS-DAP to download more than about 128KB of code into SRAM of the Vybrid tower board (TWR-VF65GS10) fails with the following error message:

ERROR(CMD16-TAD11-NAL22):

! Failed to load "my_project.axf"

! Failed to write 155,352 bytes to address S:0x3F000000

! General error on memory or register access.

If I switch to a higher level of optimisation, and reduce code size to ~121KB, the code loads and debugs normally.

Is this a known limitation?  I was hoping to be able to debug up to the compiler limit (256KB).

[timesyssupport]

We are currently looking into this issue and are attempting to reproduce. We should have an update tomorrow on the status.

Thanks,

Timesys Support

[timesyssupport · Accepted solution]

We were able to reproduce this issue: trying to debug a binary with CODE section > 128KB resulted in the above error. This appears to be a limitation either with MQX or the CMSIS-DAP firmware. If increasing optimization for the project does not cause any issues while debugging, we would recommend using that for the time being.

Thanks,

Timesys Support

[jackblather]

Was this resolved or is this bug still alive?

[garrulus]

Fixed by upgrading CMSIS-DAP firmware in Tower board.  I also updated DS-5.

[jackblather]

What version of CMSIS-DAP did you upgrade to? Where did you get the latest firmware from? I tried upgrading last month and the new firmware didn't work, so I had to flash back to the old version.

I just checked the version that's on Freescale's website (http://cache.freescale.com/files/32bit/software/board_support_packages/TWR-VF65GS10-QSP.zip) and the .S19 file inside is still dated Sept 16, 2012.

Which version of DS-5 did you upgrade to? v5.17? Did you upgrade from v5.16?

Thanks.

[garrulus]

As best I can remember, the combination which worked was DS-5 v5.16 and the CMSIS-DAP firmware found in this thread:

https://community.freescale.com/thread/314169

.. which is dated 17 Oct 2013.

[jackblather]

Thanks. I just downloaded that version of CMSIS-DAP.S19 from the other thread. I'm glad that DS-5 v5.16 works for you because I read here in this forum that v5.17 has new bugs.

[garrulus]

Thank you.  I am not using MQX, so this must be an unfortunate limitation of the CMSIS-DAP firmware.

[karina_valencia]

Perfect, thanks.

[karina_valencia]

timesyssupport are you available to help on this question?

[karina_valencia]

timesyssupport do you have any comment about this question?