This discussion has been locked.

You can no longer post new replies to this discussion. If you have a question you can start a new discussion

MDK 4.7-4.71 J-Link SWD Debug stops unexpected

Hi,

I have the problem that Debugging stops unexpected after a few seconds.

Symptom:
- Start Debugging
- Software stops at main, at this point there is the message "Trace: Data Overflow" in the µVision Status Line
- press continue and watch ow the bar in the left field of the Status line runs.
- after a few seconds, the bar stops counting and the JLink Device doesn't respond to any command. When i disconnect the USB Cable the Dialog "Connection to JLink lost" appears.

I have tested this on a few Machines:

1.) Windows XP SP3 32Bit, µVision 4.71.2, J-Link 4.96, HW 9.00
2.) Windows 7 AMD64, ¥Vision 4.70 and 4.71, J-Link 4.69 and 4.72a, HW 9.00
3.) Windows XP on a virtual VMWare Machine, the same configuration

a few Eval Boards: KEIL MCBSTM32F200, DEVKIT1207, Olimex STM32F207
and some STM32 Programs.

Debugger Configuration: "JLink / J-Trace Cortex", SWD, 10 MHz, Trace Enabled, PC Sampling Prescaler 1024*16.
With PC-Sampling, without, with Timestamps, without, with prescaler or not, always the same.

What can i do to identify the problem?

Martin