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???
10/04/05 07:34
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#101893 - Wait a minute...
Responding to: ???'s previous message
"My pcb is working as a bridge between the PC and an external dialup modem"

It is impossible for a dial-up modem link to exceed 56k!

In fact, even a so-called "56k" modem can never actually reach 56k in real life - the 56k is just a theoretical maximum limit!

Furthermore, the "56k" only ever works for downloads from a special 56k server - uploads, and modem-to-modem links cannot exceed 36k or so.

http://www.8052.com/forum/read.phtml?id=86842

So there's no real reason to exceed 57k6 - Unless your modem is doing data compression & decompression internally.

List of 20 messages in thread
TopicAuthorDate
8051 serial port at 115200?            01/01/70 00:00      
   Baud rate & autobaud            01/01/70 00:00      
   Is there anyway to get it up to 115200?            01/01/70 00:00      
      who know if he can, there is no CKCON in            01/01/70 00:00      
   Thanks, I'll try            01/01/70 00:00      
      Baud rate is not the only issue!            01/01/70 00:00      
   Wait a minute...            01/01/70 00:00      
   57600 is maximum            01/01/70 00:00      
      there are more            01/01/70 00:00      
   89c2051/4051            01/01/70 00:00      
      115200 baudrate            01/01/70 00:00      
      OP            01/01/70 00:00      
      a very sensible approach            01/01/70 00:00      
      22,1184 crystal            01/01/70 00:00      
      57600 not a maximum            01/01/70 00:00      
         Data Compression            01/01/70 00:00      
            on modems, compression and handshake            01/01/70 00:00      
         if using flow control then what is the p            01/01/70 00:00      
            faster modems != faster data transfer            01/01/70 00:00      
   Thanks everyone!            01/01/70 00:00      

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