chipKIT® Development Platform

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serial port without auto reset

Created Mon, 21 Nov 2011 10:13:08 +0000 by Ivan


Mon, 21 Nov 2011 10:13:08 +0000


I need to transfer data from a uno32 board to a PC. But If I use the standard usb/com interface , the board resets when i plug the cable and I don't want this. Any ideas ?

Kind Regards.

Jacob Christ

Mon, 21 Nov 2011 11:21:31 +0000

You can mod your board to disconnect the FTDI from the reset line. Its just a matter of removing a resistor and cap from the DTR and RTS lines of the FTDI. You can do this on the Uno32 by cutting the JP1 trace or on the Max32 by cutting the JP5 trace. This will prevent you from programming the board from MPIDE unless you install a jumper where you cut the trace on your board.



Thu, 24 Nov 2011 21:00:38 +0000

Thank's. It works! Great!