Thanks Jim, I will check the ground connection and see if this could be the problem. Again Thanks --- In AVR-Chat@yahoogroups.com, James Wagner <wagnerj@...> wrote: > > That should have read DB9 cables. > > Jim > > On Jan 15, 2008, at 9:30 AM, James Wagner wrote: > > > To Clarify - > > > > Bidirectional RS232 requires at least 3 connections - Rx, Tx, and > > Common or Ground. If your cable has no ground wire, it could have > > worked through the JTAG ground. Removing JTAG would then cause the > > RS232 to fail. Check your cable with an ohm meter or continuity > > checker to verify that (pin 5, I think, on DB29 cables). > > > > Jim > > > > On Jan 15, 2008, at 9:14 AM, David VanHorn wrote: > > > > > > > Is there a ground connection between the PC and the system when > > > the > > > > > debugger isn't plugged in? > > > > > > > > > Yes it should be grounded. > > > > > > I agree that it SHOULD be, but the question was wether it IS. > > > > > > In theory, there is no difference between theory and practice. :) > > > > > > > > > > [Non-text portions of this message have been removed] > > > > > > > > > > [Non-text portions of this message have been removed] >
Message
Re: UART output problems
2008-01-15 by micro_chipman
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