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[SOLVED] usb_future technologies_devices_international(ftdi)

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wild roze

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hi
i hav a ft2232h usb mini module with me. actually i want to incorporate this usb module to my existing project .i dont hav an idea from where i hav to start . my controller is pic24fj128. if any body knows about this ftdi module pls show me path......
 

You basically attach it to the PIC's serial port, this allows you to pass data between the PC and the PIC using a virtual serial port setup via the USB. I use them quite frequently, they also can be used to bit-bang several bus protocols and its other pins can be digital I/O.

Let me know if you need an example project.
 

The answer depends on what you want to achieve. You can e.g. connect it to a PIC24 UART with a simple 3-wire interface: RxD, TxD and GND.
 

hi
when im connecting initially should i want to do any configurations like loading drivers,configuring registers or something like that ? im very new to this ........pls help me
 

Chances are you may have the FTDI drivers already loaded on your PC, if not then visit FTDI's website, download and install the appropriate drivers, there are also plenty of appnotes available for the FTDI chips.

What FTDI chip do you have in the module, FT232R, FT232H, etc?
 

FT2232 will work as a virtual COM port by default, you have to install the standard FTDI drivers if not already present on your computer. After that, the device exposes two virtual COM ports, you can access it e.g with Hyperterminal. On the PIC24 side, one of the existing four UARTS has to be configured in the usual way.
 

thanx for the reply..how do we know that whether that driver is installed or not ?
 

A driver install dialog box will pop up and ask you to install the driver or let the system install the driver if not already installed.

You may want to let the system attempt to install the drivers automatically, if the OS can't find them it will let you know.

Sorry, I hadn't notice you mention you had a FT2232H before.
 

doesn't matter.....anyway both of u helped me . i will start working on this and if i stuck somewhere i would post again .....u should help me . first i hav to go through the datasheet of the module
 

first i hav to go through the datasheet of the module
Click to expand...
Usually, jumpers have to be placed to enable bus powered operation and set the logic supply voltage to either 3.3 or 5V.
 
hi ,
pls tell me wat is dll . which driver should i install ? what is the difference b/w royalty-free vcp and dll drivers .. after installing the driver , should i burn the program ? im in a dilemma........pls help
 

Install the latest FTDI VCP (virtual com port) drivers (if not already done), and that's it for the FTDI side.
after installing the driver , should i burn the program
Click to expand...
Are you referring to PIC24 programming? Yes, it will need a program. And you'll need some kind of programming adaptor (e.g. PICkit), if it's not already built-in to your development board, as it is e.g. with the Explorer 16.
 

hi
we done the project in pic24 (c progmmng).now we want to include the usb in it . we have a xplorer 16 kit with us . if i installed the drivers, what would be the next ?
should i write the entire code for the module ? or the code is available ?
 

should i write the entire code for the module
Click to expand...
The suggestion was to access the module through Windows Hyperterminal or another serial application of your choice. No code is required for that, thus it's named virtual COM port.
 

thanks for the reply fvm.
i just want to do a test via the d2xx instead of com port . does it needed any application for that ?
 

d2xx needs software on the PC side to drive it. FTDI has examples for different programming languages. Also the module has to be reprogrammed to use d2xx mode. Follow the FTDI documentation.
 

ok....as u told i connected a jumper & my module got detected . now i hav to search for a software .
anyway thanks for the information.

---------- Post added at 15:52 ---------- Previous post was at 14:19 ----------

hi
can u suggest any software which drives the usb mini module ?
i would like to do in the c++ actually...........pls reply
 

i got a software namely 'mprog'. i have installed the d2xx driver software .
Then i tried to program using that software . But it is showing a message that the device is not found . why it is showing like that ? other than this d2xx driver any other drivers needed to be installed ?
answer me if anybody knows......
 

hi to all...
actually i checked the communication is taking place via the rs232 cable. For that i installed the vcp driver and tried to communicate using the hyper terminal . badly , it wasn't communicating. i gave the 16(trans) and 17(rec) pins to the rs232 cable's corresponding rec and trans pins... and ground to 5th pin. why it is not communicating ?
pls help
 

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