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???
07/21/05 09:47
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 		 #97717 - Why??
Responding to: ???'s previous message
Thyeadi Tungson said:
I want to make a system using AT89S52 micro controller, but i need two serial port

So why have you chosen the 89S52, which only has one serial port?
Why not just choose an 8051-derivative with two serial ports - there are plenty!

If you're really stuck with the 89S52 you have 2 choices:
  • Use an external hardware UART (you can get them with parallel or serial interfaces; eg, I2C);

  • Implement a Software UART: this has been discussed here plenty before, and there are plenty of references on the web - so do the Search



    • List of 2 messages in thread
    TopicAuthorDate
    how to make double serial port in 89S52            01/01/70 00:00      
       Why??            01/01/70 00:00      

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