Looks good (except for the base resistor mentioned several times
already). May I offer the following simplification though: use a
diode in place of the transistor, anode to MCLR, cathode to MAX232
output. The reason you are using a transistor in the first place is
simply to achieve a logic "OR" of the two possible reset signals.

Pin 7 (RTS) is a good choice I think. (RTS = Reset The Sucker?). I am
using the same pin because I run Shane Tolmies bootloader in
conjunction with Petr Kolomazniks downloader, both from:
http://www.workingtex.com/htpic/PIC_bootloader.htm
The downloader program generates a reset signal on RTS, which means
you don't have to manually reset or power down the micro to initiate
the bootloader.






> Hi all
>
> currently I am using the circuit in the attach file to reset my PIC by
> com port. Just to check is this method advisable and is there any
> better way.
>
> regards
>
>

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Brent Brown, Electronic Design Solutions
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eMail:  brent.brown@clear.net.nz

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