Codewarrior Tutorial for FRDM-KL05Z: Debugging with USBDM

This tutorial was extracted from Erich Styger blog http://mcuoneclipse.wordpress.com with his agreement.

I mentioned in “Debug External Processors with USBDM and Freedom Board” post that I had a problem to debug the FRDM-KL05ZFRDM-KL05Z with USBDM. Well, after a long night with some sleep, with more thinking and searching, finally I have it resolved: I can debug my FRDM-KL05Z with USBDM

   FRDM-KL05Z Debugging with USBDM

The problem was that I received a “Failed to resume target process., Downloading binary to target…’ error message:

Failed to resume target process

This Freescale forum thread has finally lead me to the solution: a wrong USBDM device ID for KL05Z present on the FRDM board .

USBDM Flash Programmer

USBDM comes with standalone flash programmers, and one of it is for ARM based devices:

The Flash Programmer has a ‘Detect’ functionality, it was not able to detect the KL05Z32 on the FRDM-KL05ZFRDM-KL05Z board:

  Flash Programmer for ARM

Chip ID

The good thing is that it reports the chip ID. After searching around, I realized that the ID mapping is described in the arm_devices.xml file inside the USBDM installation folder:

That file has the KL05Z32 listed as

<memoryRef ref="kinetisL4K_Ram" />

<memoryRef ref="kinetis32K_Flash_B0" />

<memoryRef ref="kinetisIO_KL" />

<sdid value="0x05130480" />

<tclScriptRef ref="Kinetis-KLxx-Scripts" />

<flashProgramRef ref="Kinetis-KLxx-FlashProgram" />

</device>

That device ID (0×05130480) does not match what the programmer reported (0×5130402). Testing the ID with the working FRDM-KL25Z, it seems to me that the last nibble is zero, so I changed the above entry to:

<memoryRef ref="kinetisL4K_Ram" />

<memoryRef ref="kinetis32K_Flash_B0" />

<memoryRef ref="kinetisIO_KL" />

<sdid value="0x05130420" />

<tclScriptRef ref="Kinetis-KLxx-Scripts" />

<flashProgramRef ref="Kinetis-KLxx-FlashProgram" />

</device>

With this, the device is properly detected:

And with this change, CodeWarrior for MCU10.3 is successfully debugging the FRDM-KL05Z with USBDM:

Happy OSBDMing