DS-5 debugger fails to connect to PandaBoard over JTAG

Applies to: DS-5

Answer

SYMPTOM
The standard X-loader (MLO) binary will prevent a JTAG debug connection to the Panda board.

Error: No connection to target. com.arm.debug.dtsl.DTSLException: Failed to connect to the device, when connecting to PandaBoard over JTAG.

CAUSE
This problem is caused by the default clock settings configured in x-loader/board/omap4430panda/clock.c. To support JTAG debug bit 8 of CM_DIV_M6_DPLL_CORE register must be set to 0.

SOLUTION
Replace the existing x-loader MLO binary on your SD card with the one supplied here.

Or rebuild the MLO executable from the latest sources, making the change described above. Please see the README.TXT for instructions on obtaining the sources and rebuilding.

Article last edited on: 2011-07-26 12:26:00

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