Keil forum Unexpected data in Debug (printf) viewer

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Unexpected data in Debug (printf) viewer

Thomas Johansen over 13 years ago

HI

I get unexpected writes to the serial debug viewer. No call to the ITM_SendChar function.

It is probably caused by a task somewhere overwritten some memory.

Any idea how I can found out where??

Thomas

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0 Thorsten de Buhr over 13 years ago in reply to Thorsten de Buhr

When Trace is enabled and ITM Ch.0 is sampled, and the Core Clk is set to the wrong value (then the data is sampled incorrectly) decoding (errors) can result in data being interpreted as ITM Ch.0 data and sent to the printf Window.

In Mixed Mode (printf Window) you can see the ASCII and Hex values.
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0 Thorsten de Buhr over 13 years ago in reply to Thorsten de Buhr

When Trace is enabled and ITM Ch.0 is sampled, and the Core Clk is set to the wrong value (then the data is sampled incorrectly) decoding (errors) can result in data being interpreted as ITM Ch.0 data and sent to the printf Window.

In Mixed Mode (printf Window) you can see the ASCII and Hex values.
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