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???
05/24/11 13:10
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 		 #182367 - Use one of these
Responding to: ???'s previous message
Ghulam Mustafa said:
i want to create a device that transmits data through USB port.

Then just use a simple serial-to-USB converter.

No changes required at all to you 8051 hardware or firmware, nor your PC application software.
Job done.

You can get ready-made cables to build into your product if you want to avoid connectors:



These are available with RS232 levels, or 3V3 or 5V logic levels - for direct connection to the microcontroller pins.
They can even supply power.

http://www.ftdichip.com/Products/Cables.htm

Does the converter works correctly?

Of course it does.

I mean the timing issue problem.

What "timing issue problem" ?

If your software is buggy and has timing issues, that will not be affected by the adaptor!


i am limited to DIP

Only if you choose to be!

Again, see: http://www.8052.com/forumchat/read/182166

And: http://www.8052.com/forumchat/read/182165

i have to create a PCB for other packages?

Of course - whatever you do will require a PCB!

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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