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led_toggle example starts with error on AM437x IDK on every second start

Hi,

I am using the  AM437x Industrial Development Kit (IDK) TMDXIDK437X, currently with the XCD100v2 Debugger. The led_toggle example works as I expected, except for the following error which I get every second time I restart the debugger, so something seems not to be cleaned up correctly on termination of a debug session or something is missing when starting the debugger:

CortexA9: Trouble Writing Memory Block at 0x4c000060 on Page 0 of Length 0x4: (Error -1065 @ 0x3D5A) Unable to access device memory. Verify that the memory address is in valid memory. If error persists, confirm configuration, power-cycle board, and/or try more reliable JTAG settings (e.g. lower TCLK). (Emulation package 5.1.641.0)
CortexA9: GEL: Error while executing OnTargetConnect(): Target failed to write 0x4C000060
    at *((unsigned int *) (0x4C000000+0x0060))=(unsigned int) 0x00002011 [AM43xx_EMIFconfig_HWlvl.gel:10]
    at AM43xx_DDR3_config(2) [AM437x_EVMs.gel:35]
    at AM43xx_IDK_EVM_Initialization() [idk_am437x.gel:17]
    at OnTargetConnect()

TMDXIDK437X Board is Rev 1.3A, processor is XAM437XAZDN (Silicon Rev 1.1.) CCS revision is 6.1.0
Any hint, what causes this problem is greatly appreciated.

Best regards,

Mark