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???
05/31/11 19:24
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 		 #182437 - latency
Responding to: ???'s previous message
The new FTDI chips can go much, much faster than 921600 baud, but...

The gotcha with USB-UART converters is not data throughput but latency.

E.g. If every byte needs to be echoed/acknowledged first before the next can be sent then transmission will slow down to 1 byte/ms.

List of 32 messages in thread
TopicAuthorDate
8051 based USB Controller            01/01/70 00:00      
   What? Why?            01/01/70 00:00      
      Actual task            01/01/70 00:00      
         Use one of these            01/01/70 00:00      
   What type of "USB Communication", exactly?            01/01/70 00:00      
      Details            01/01/70 00:00      
         USB Based 8051            01/01/70 00:00      
            Not recommended for new designs            01/01/70 00:00      
   DIP? Unlikely.            01/01/70 00:00      
      What's the solution then            01/01/70 00:00      
         You'll Have to Decide.            01/01/70 00:00      
         switch from the DIP package            01/01/70 00:00      
         SILabs            01/01/70 00:00      
            There are DIP USB devices in MCP 18F series            01/01/70 00:00      
               MCP???            01/01/70 00:00      
                  He's talking about PICs...            01/01/70 00:00      
                     USB dongle            01/01/70 00:00      
   A nice solution            01/01/70 00:00      
      USB Dongle Selection            01/01/70 00:00      
         Wont it require any Converter too            01/01/70 00:00      
            Did you actually bother to study the details at all?            01/01/70 00:00      
            Why Bother ??            01/01/70 00:00      
      Not necessarily so nice            01/01/70 00:00      
         Use UART            01/01/70 00:00      
         There's one important "gotcha" ...            01/01/70 00:00      
      What about the data rate?            01/01/70 00:00      
         Data rate            01/01/70 00:00      
            Can you proceed without knowing the reqirements?            01/01/70 00:00      
               latency            01/01/70 00:00      
               I doubt we ever will            01/01/70 00:00      
                  Trying this solution            01/01/70 00:00      
                     USB MCU DIP Package            01/01/70 00:00      

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