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Problems with Mon51 connection using AT89S53 through RS232

I'm using keil c51 7.06
My Problem is that uVision always shows monitor 51 not connected.
I use RS-232 interface and ATMEL "AT89S53"

Could anybody help me?
RAY

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0 Jon Ward over 20 years ago in reply to ray chen

is there anyone knows how to solve connection problem?

Yes. However, you give so little information that my guess is no one wants to go through the exercise of questioning you for every singe piece of useful information.

So, no one has responded.

Jon
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0 Jon Ward over 20 years ago in reply to ray chen

is there anyone knows how to solve connection problem?

Yes. However, you give so little information that my guess is no one wants to go through the exercise of questioning you for every singe piece of useful information.

So, no one has responded.

Jon
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