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Tuesday, October 25, 2016

KL8x: Universal Multilink: Breakpoints in QSPI
Konrad G. Oct 25, 2016 at 11:24 AM (11:24 hours)
Staff: Edison T.

3 comments

Hello,
 
I am on a project with the Freescale MKL82Z128VMC7 SDK. As my software grew,
I hit the limitations of the internal flash and therefore moved it to run
from external (QSPI) flash.

Currently I am using the OpenSDA with J-Link firmware which cannot set
breakpoints within the QSPI address space. Is the Universal Multilink (or Universal Multilink FX) probe able to set breakpoints within the QSPI flash?

Regards,
Konrad Gräfe

Comment #1 Konrad G. - October 25, 2016 - 11:24 AM (11:24 hours)

Comments

Hi Konrad,

Can you give me an example of an address that you are trying to set a breakpoint at? The Cortex M0, M3, and M4 cannot set hardware breakpoints at addresses higher than 0x1000_0000.

Comment #1.1 Edison T. (PEMicro Staff) - October 25, 2016 - 12:33 PM (12:33 hours)

This is a Cortex M0+ with the QSPI flash mapped to 0x68000000.

There is a competitor who claims to support software breakpoints by reprogramming the QSPI flash. But as those products are more expensive, I wanted to find out if this is a common feature or not.

Comment #1.1.1 Konrad G. - October 26, 2016 - 03:58 AM (03:58 hours)

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