chipKIT® Development Platform

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chipKITWebServer not wgorkin

Created Tue, 31 Jul 2012 22:04:07 +0000 by Jose Moreno

Jose Moreno

Tue, 31 Jul 2012 22:04:07 +0000

Hi, I´m trying to execute some ChipKIT examples. When I try ChipKITWebServer, I write in the .pde file, my CerebotMX7cK MAC address and an unused IP address. Compilation in MPIDE is ok, but when I try to upload the program to the board, I receive the message

Serial port 'COM8' already in use. Try quiting any programs that may be using it.

Arduino examples have no problems using COM8. Could somebody help me please?

Thanks in advance.


Wed, 01 Aug 2012 16:22:04 +0000

Hello Jose,

There are a couple things that can cause this. First off, be sure that when you unplug the MX7cK from the computer, COM8 disapperas in your device manager. Have you used the MX7cK with MPLAB? If you have, then the bootloader has been erased, and MPIDE will not be able to communicate with your board, and throw this error.

Is this the case? If so, you can download the MX7cK bootloader from the MX7cK product page at In MPLAB, select the Licensed Debugger as the Programmer, and import the bootloader HEX file, and click program.

Best Regards,

Jordan R Digilent