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Topics - Rajesh@sys

Pages: [1]
Discussion - Hardware / ft232h suspend mode
« on: August 06, 2019, 02:39:37 PM »

i am using ft232h in 245 FIFO synchronous mode.  i am using Hercules to Read data from USB.

after writing few frames of data (1frame= 512bytes) roughly 20 frames.

TXE is going to high state. and when it comes to low state my hardware not writing data.

please let me know how to make ft232h to write continuous data.?



i am using FT232H in my project.

as i am transferring continuous data from FPGA to PC using FT232H.

in oscilloscope i am observing TXE is HIgh for long time. of 1millisecond. i am loosing transfer speed here.

please see the attached snapshot of TXE.

 is there any way to make TXE  to LOW condition in micro-secs ..?  can we control TXE ?

Rajeshkumar Athram

Discussion - Hardware / FT232H handle in visual studio
« on: June 25, 2019, 11:16:53 AM »

 i am using visual studio 2017 to configure FT232H to synchronous mode.
i am able to detect ft232h as comport.(using vcp drivers)

as given pdf (building application  in visual studio) i have included .dll files from and header file  "d2xx driver".

i have used code from "TN_167 FIFO Basics (USB2.0)" fifo synchronous read code.

with these i am able  confirm FTDI IC is connected. as it showing(command prompt) code is excited with 0.

if i disconnect usb i am able to see "device status not ok".

my query is :

1) why i am not able to access ft_handle function.

2) code is everytime entering into null.

please suggest me., how access ft_handle


Discussion - Hardware / 232h in synchronous mode
« on: April 26, 2019, 12:48:53 PM »

we are using UM232H in one of our projects.
we are using in synch FIFO mode.

After power ON
1) to set synchronous FIFO mode. we are sending 0x40 using FT_HANDLE/ from Visual Studio/COM port - after every power ON off board..

2) we are using Labview to read data. using NI-VISA as USB port.

here we are facing problem.   switching between labview and visual studio.


3) how to set  UM232H in synchronous FIFO mode permanently.

please suggest/share if any document is available for setting synch mode permanently.

Discussion - Hardware / txe and rxe signals in FT232H
« on: March 15, 2019, 01:27:33 PM »

RXE and TXE signals are dependent or independent ?

                can TXE and RXE go LOW at same time.

Discussion - Software / labview programs for ft232h device.
« on: January 07, 2019, 09:20:01 AM »
i am using FT232H in my project.(FPGA-FT232H) other end i am using LABVIEW2018.  to verify/check  the data.

the programs available at "https://www.ftdichip.com/Support/SoftwareExamples/CodeExamples/LabVIEW.htm"
are not supporting with new version of labview.

please share the updated labview programs which ssupports LABVIEW2018.

Discussion - Software / data rate calculation ft232h asynchronous fifo mode
« on: November 28, 2018, 01:06:21 PM »

we are using FT232H in my project,

and sending continuous data with respect to TXE# is low.

we want to know the data rate of transmission to pc. how to calculate data rate of transmission for asynchronous FIFO mode??

Discussion - Drivers / issue related to UM232H eval. board
« on: September 11, 2018, 08:08:17 AM »
 i am trying to use um232h eval board in sync fif0 mode.
 iam using windows7 64 bit.

In the document, 2.3 Synchronous FIFO I/O/page no: 8  Given that "Synchronous FIFO mode can only be accessed by the D2XX driver, with Bit Mode set to 0x40."

i have downloaded the cdm package.
and extracted from it. i am not getting any application software(.exe) to install he drivers.
i am getting .lib,.dll etc files

am i installed d2xx driver or not ?

but i am not getting how to change d2xx driver settings .

when i open D2XX.DLL file. i am not able to understand the code.

how and where the code need to change. ??
help me get a solution. ??

Pages: [1]