FTDI FT4232HQ automation using labview driver

[shweta18]

Hi,

I am working on FTDI chip .I want to communicate FTDI chip using labview driver and i have downloaded driver of FT 4232.But i am not able to read and write with that .Can anyone help me out or send me some VI or video ,so that i will be able to communicate.

Thanx in advance 

Regards

Shweta

[Dennis_Knutson]

Which driver? VCP or D2XX? How exactly are you trying to read and write? What sort of errors are you seeing? What do you have connected to it?

[shweta18]

HI,

I am using D2XX driver..I want to read and write address on my chip using UART .so for that i am using FTDI FT4232HQ (USB to UART).

Actually I am new to FTDI ,so I really dont know how i can use this driver.

[shweta18]

Hi Dennis,

I am using D2xx driver for FTDI.As i want to write and read back data from FTDI FT4232 chip.I hav connected loop back wire between TX and RX buffer of UART port of FT 4232 chip. I m using  FTDI's D2XX drivers to find a device, open it, write data in a byte-array format, read data in a byte-array format and close the device from http://www.ftdichip.com/Support/SoftwareExamples/CodeExamples/LabVIEW.htm example 1.

My device getting detected ,but i am not geting the read data back.

Is that example having some error ? or i have to add something else?

thanks in advance

Regards

Shweta18

[Dennis_Knutson]

I have seldom used the D2xx driver, sorry.

[tmbruce]

The problem you are likely having is the VIO bus is not connected to V3V3.  The FT4232 Mini Module data sheet also shows that there are multiple pins on those busses.  They are actually not connected.  Try connecting these pins together : Connect VBUS to VCC (CN3, pin 1 to CN3, pin 3)   and Connect V3V3 to VIO (CN2, pins 1, 3 & 5 to CN2, pins 11 & 21 and CN3, pins 12 & 22).  Make sure they are all hooked up.  If you need more help check out Page 7 on the Mini Module data sheet.  Hope this helps even though I'm a couple months late.