Hi,

Can you tell me if your sketch uses serial.begin() and at what speed?

Thanks

Hi,

It's the same system regardless of the trial.

It sounds like too many serial messages are being sent by the arduino. The arduino has a small buffer so if it overflows with huge streams of messages it can cause the serial to fail.

If you are using the serial heavily or using .read() in your code then you would need to use a different serial port for debug of a couple of digital pins.

When you say it breaks sometimes but doesn't show much information what do you mean. Does it show the variables you have specified in the "when hit" / watch list? 

Can you give me an example of a "when hit" message that you have used?

Thanks

Hi,

Thanks for the image but it does not show what variables you are trying to watch. 

You have to add a break point "When Hit" message to watch variables.

http://www.visualmicro.com/page/User-Guide.aspx?doc=Working-With-Breakpoints.htm...

It might also be useful to know that the debugger has to inject serial into a temp copy of the sketch at compile time. Because it injects the breakpoint in your example will be inside the "if" at the end of the line fore the closing brace }

If you are new to the debugger I suggest putting the breakpoint on the blank line before your "if" statements