VS Arduino - missing character in serial.print() when (MicroDebug) is set full

Mar 15^th, 2026 at 2:52am (UTC)

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VS Arduino › Visual Micro › Usb/Serial/WiFi Debugging › missing character in serial.print() when (MicroDebug) is set full

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missing character in serial.print() when (MicroDebug) is set full (Read 4495 times)

klambert Newbies Offline Posts: 6 Joined: Dec 5^th, 2015	missing character in serial.print() when (MicroDebug) is set full Apr 18^th, 2017 at 8:58pm	Print Post
	I have written a little arduino sketch. Some librarys are bound in the background but not used in the sketch. (see SerialPrintError2.jpg) When setting (MicroDebug) to full the last char of the string is missing. (see SerialPrintError2.jpg) Switching to none the last char is in place. (see SerialPrintError1.jpg) any hit to this problem could be be helpfull. regards Knut
	« Last Edit: May 10^th, 2017 at 11:51am by Tim@Visual Micro »
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Tim@Visual Micro Administrator Offline Posts: 12204 Location: United Kingdom Joined: Apr 10^th, 2010	Re: missing character in serial.print() when (MicroDebug) is set full Reply #1 - Apr 18^th, 2017 at 9:27pm	Print Post
	Hi, thanks for the report I will look into it. It might or might not help to know that in debug mode the serial monitor expects to read lines of input. So because you have not used Serial.println() or have not added \r\n to your output strings the serial reader will wait a few seconds before showing the incoming serial data. I expect the same routine has an issue that is not showing the last char. So using Serial.println(s) will work better but might not be what you want to do.


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klambert Newbies Offline Posts: 6 Joined: Dec 5^th, 2015	Re: missing character in serial.print() when (MicroDebug) is set full Reply #2 - Apr 19^th, 2017 at 6:59am	Print Post
	Hi, thanks for your reply. If i instead print println or a secound it works. However, then the \n sign is too much for me. A second print() works. The first print() is complete and at the secont print() the last character is missing again. And the second print is over. A print(\n) after the first print() completes the string output. Later, instead of the terminal a raspberry reads the messages and I can not be sure at present what output the program actually produces.

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Tim@Visual Micro Administrator Offline Posts: 12204 Location: United Kingdom Joined: Apr 10^th, 2010	Re: missing character in serial.print() when (MicroDebug) is set full Reply #3 - Apr 19^th, 2017 at 9:39am	Print Post
	Thanks There will be a fix for the missing last char when not using line terminators. However it might be useful to note that the debugger shares the serial port as a default. You can use a different port for the debugger or you can use the softwareSerial option that requires one digital pin for trace and a second pin if you want to break/update vars. Using an alternative port for debug would allow the pi to remain connected and working during debug.


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Tim@Visual Micro Administrator Offline Posts: 12204 Location: United Kingdom Joined: Apr 10^th, 2010	Re: missing character in serial.print() when (MicroDebug) is set full Reply #4 - Apr 19^th, 2017 at 8:38pm	Print Post
	more This is now resolved in the next release of visual studio version and will be resolved in atmel studio during the next few days/week. http://www.visualmicro.com/forums/YaBB.pl?num=1491650979


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