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USB COMM / USB UDF ???

6 posts in this topic

#1 ·  Posted (edited)

hi guys,

i searched for a USB Comm or Udf to communicate with a usb port.:

Nothing found :/

here is my background:

i have a Display Box with some electronic which is working at the moment with RS232 serial connection (to PC)

now i have to update the electronic components (update memory etc) in this part i have to change the connection to usb.

and here is the problem:

i used a autoit scritp to read out the electronic component over rs232 no problem.

its work on send/receive:

sending "save1" to rs232 getting back all values what where in my first save block.

no problem to work with this in autoit

how i can do this with USB???

are there any libs or whatever to communicate with usb like rs232?

hope you understand me, sorry for that bad english

regards

Edited by Vision

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are there any libs or whatever to communicate with usb like rs232?

No. USB is a very different technology than RS232, and they are nothing alike. I believe that there are no standard libraries for USB available, because it depends on each driver how they utilize USB.

Instead of a "USB lib" you should be looking for a "Driver lib" for whatever driver you have.

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There's this though USB Lib (open source too)

hth,

whim

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are there any libs or whatever to communicate with usb like rs232?

You may not need anything fancy. If you can go with just send/receive data (without regard to or control over the other signal lines) you could be done using the COMx: device as a read/write file.

A large number of different RS232C to USB adapters exist and their direct interface depends on gory low-level details varying from model to model. I would forget about interface at the USB level because even if you succeed after spending a long time figuring how to deal with your current device, if ever it dies someday you'll have to start again from scratch to interface a [probably different] replacement.

Try the OS level if you can and tell us how it goes.


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hi guys,

i searched for a USB Comm or Udf to communicate with a usb port.:

Nothing found :/

here is my background:

i have a Display Box with some electronic which is working at the moment with RS232 serial connection (to PC)

now i have to update the electronic components (update memory etc) in this part i have to change the connection to usb.

and here is the problem:

i used a autoit scritp to read out the electronic component over rs232 no problem.

its work on send/receive:

sending "save1" to rs232 getting back all values what where in my first save block.

no problem to work with this in autoit

how i can do this with USB???

are there any libs or whatever to communicate with usb like rs232?

hope you understand me, sorry for that bad english

regards

It's not very clear to me what you want or need to do. It sounds like you have to change the electronic design of the Display box so that it uses a USB interface instead of RS232. Is that what you mean? If so it's not as difficult as you (and some others) might think.

Or do you mean the new Dosplay Box has USB rather than RS232 and you don't know how to communicate with it?

Or something else?


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Or do you mean the new Dosplay Box has USB rather than RS232 and you don't know how to communicate with it?

thats it.

i searched a bit more and i have found a cable with that i can "fake" a USB connection.

USB>RS232 Cable

so i think this is thread is finished.

thanks alot for your all suggestions.

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