When trying to upload firmware I get the following errors:
timeout - cannot sync, orport is in use
What can be the possible sources of these errors?
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There are mainly three reasons for that:
- Arduino studio settings should be:
- Board: Mega 2560 and
- Programmer: AVR ISP
- and valid COM port, please see below:
Please close all slicer's instances (Cura, Slic3r, Repetiter) and host servers and other software that communicate with the printer as they lock the COM port;
Please check that the appropriate usb2serial drivers are installed and working - the best way is to start the serial monitor from the Arduino Studio Tools menu and see if there are any.
profesor79
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1+1 for mentioning the slicer software in the overview, the slicer is frequently overlooked and certainly got me a few times wondering why it would not upload! – 0scar Apr 20 '18 at 09:05
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how about a too-high baud rate? – Roger Apr 20 '18 at 12:17
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@Roger the baud rate is determined by board/programmer in Arduino Studio, that means we don't have access to set it. – profesor79 Apr 20 '18 at 12:26
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14. There is a preloaded task in your Arduino, I´ve seen this several times. – Fernando Baltazar Apr 20 '18 at 18:17