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Data acquisition through USB

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Shruthi LS

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Hello..
I am assigned to work on Data acquisition through FT232R USB UART IC. How the data can be received through the hyperterminal in the PC.
 

Nothing changes, the whole communication process is the same as would be on a native COMx serial interface. The USB / RS232 conversion is performed transparently from the user's point of view.
 
Hi,

I assume 8 bit data acquisition system.

Then you need to transfer the binary data into decimal data.
Then review it with excel.

Klaus
 
how many bits/data item and what is the data acquisition rate ?
if you wish to implement your own code you could use the SerailPort component of Visual Studio working in C++, C# or VB
 
Thank you all for your reply..
Initially sending the 8-bit counter written in the VHDL code to the FT232R USB UART IC with 9600 baudrate. But in the hyper-terminal we can't see our data. So is there any other method for the FT232R USB UART IC to grab the data..
 

Hi,
I have done the simulation with the VHDL code and the UART...Getting the correct data in the simulation without any error..
Ya true hyper-terminal can't display binary data..only hexadecimal values can be seen...M looking for the hexadecimal values itself in the hyper-terminal..
M feeding a 8-bit counter through the UART..so I should receive the same through PC(hyper-terminal)...Is there any other tool??, there is no problem with the code..
 

Hi,

What do you expect?

It´s not the FT232 that causes the problem.
You feed it with binary data and it is received by the hyperterminal as binary data. But Hyperterminal can´t display binary data.

***
If you don´t think this is the problem, then describe/ show how you "send the 8 bit counter value to the FT232".
And how you expect it to be displayed in hyperterminal.

***
There are lots of people here, able to review your VHDL code...

Klaus

- - - Updated - - -

Hi,

setup: Baudrate, handshake, number of stop bits,
(don´t use software handshake XON/XOFF)

There are a lot of free terminal tools. (most of them are better than hyperterminal).

Klaus
 
Right now I am using hyper-terminal and Real-term, but that doesn't make any difference...
 

Shruthi LS said:
Thank you all for your reply..
Initially sending the 8-bit counter written in the VHDL code to the FT232R USB UART IC with 9600 baudrate. But in the hyper-terminal we can't see our data. So is there any other method for the FT232R USB UART IC to grab the data..
Click to expand...
rather than Hyperterm try RealTrem
http://realterm.sourceforge.net/

which has various display modes
http://realterm.sourceforge.net/index.html#Display_Formats

enables you to display the received serial data in hexadecimal
 
Hi..

Anyone worked on Microsemi Libero SOC tool??
 

Hi..
I am getting some special characters in the hyper-terminal and some datas are repeating...So how to overcome this and how to get the header files or protocols of FT232R UART chip??
 

Hi all...
How to get the data from the hyperterminal sequentially...Now I am getting the data with repeating pattern...
 

Hi,

how to get the header files or protocols of FT232R UART chip
Click to expand...
What do you mean?
You send the raw data..

Now I am getting the data with repeating pattern...
Click to expand...
You get the same data as you send it to the FT2232R.
If you don´t want to receive repeated data, then you should not send repeated data.

--> The data is unchanged. Send a byte into the FT2232R, and receive the same byte in hyperterminal (or any other application). There is nothing added or modified

Klaus
 
Hi...
I am sending a 8-bit counter written in VHDL as a sample program through FT232R chip....Simulation everything goes fine...But in the hyperterminal some values are repeating for example the many symbols @,y... is repeating many times...I am getting all the 255 characters but not in a correct pattern...So what to do for this???
 

Hi,

repeating for example the many symbols @,y...
Click to expand...
These are ASCII symbols, they are useless.
--> set your display mode to "hex" or "binary" instead.

Klaus
 

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