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[SOLVED] connecting to hyperterminal making MC unstable

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Raady Here

Raady Here

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PIC30F5011/MPLAB 8.8v

Interfaces _ 24LC256, 20x4 LCD, DS1307, 4x4 matrix keypad, external osc 8 Mhz.

Hi,

I made a code accessing these interfaces, and this whole thing works absolutely fine when I am using without hyperterminal.
But some times when I connect to hyperterminal the micro-controller starts to reset and it never stops, sometimes it ends up showing some symbols. To catch up the problem in the code this doesn't happen regularly.
Is there any thing in particular which makes mc to reset while connecting to hyperterminal ? will there be power sources objecting while I use my PC?

Regards,
Raady.
 

i think that there is might be problem of connection at db9 connector. Please check connection part of db9 connector as when data is start sending that time other pins of db9 connector also get change.
 
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