Ftd2xx.dll Windows 10
Mina Delahoussaye
Search your harddisk for occurrences of the ftd2xx.dll file and look at their versions. Most likely you have multiple versions of those DLLs in your system. When you call that DLL from LabVIEW, Windows will only search in the system directory and the application directory (which is the LabVIEW directory itself) for that DLL, while your FTDI examples may use different locations to reference the DLL.
I need both since ftd2xxx.dll is general functions for open/close and other general functions while Libft2222.dll is the FT2222H specific functions like I2C/SPI read/write setting devices in different modes.
Usually the ftd2xx.dll file gets installed into the Windows system directory. Check there (System32 on 32 Bit Windows and SysWOW64 on 64 Bit Windows for 32 Bit applications). The other DLL might try to load the file from there but gets a problem if you already load that DLL in LabVIEW from a different place.
If you find the ftd2xx.dll in the system directory, change the Call Library Nodes for that DLL to only contain the DLL file name without Windows system directory path. That will avoid problems when you or someone else later tries to build an executable containing these VIs.
Yes that means that any user of your LabVIEW application will actually need to install the FTDI driver on his system, but that is clearly how FTDI has designed this and therefore you should follow that.
If this doesn't help you really need to open a support ticket with FTDI. They are the only people who know how they build their DLLs and how they are supposed to work together. LabVIEW isn't doing anything special with DLLs that would cause this problem (but you are doing that by explictly pointing the LabVIEW VIs to the ftd2xx.dll path). Your sample programs only link with the import library ftd2xx.lib and that does not reference the DLL by full path but only the library name alone without any path, which means that the DLLs only can be either in the same directory as the executable itself or in the Windows or System directory).
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Have you ever encountered the ftd2xx.dll not found or missing errors? This kind of error, triggered by various reasons, is troublesome to handle. So, what is ftd2xx.dll? And how to deal with the ftd2xx.dll missing error? In this article on MiniTool Website, the details will be presented.
What is ftd2xx.dll? The ftd2xx.dll file, known as FTD2XX Dynamic Link Library, is an essential system file of the Windows OS. Usually, it is closely related to FTDIChip CDM Drivers to make the Windows programs work well.
If your ftd2xx.dll file is missing or corrupted, some programs will fail to work or even, make the system crashes. To prevent further results triggered by the ftd2xx.dll missing error, we highly recommend you back up your system in advance.
There are many reasons that can trigger the ftd2xx.dll errors. For example, you may mistakenly delete the ftd2xx.dll file and you can try to recover it from recycle bin; if the recycle bin has been cleared, you may go to re-download the file from its original, legitimate source.
After all of these descriptions of ftd2xx.dll, the methods to get rid of the ftd2xx.dll not found or missing errors have been clarified. You can choose among them to find the one tailored to your situation and troubleshoot the issue. Hope the article is useful for you.
Sometimes the cable drivers can be a bit frustrating to get going (especially with such a big program like Vivado). I know you said you installed the cable drivers, but I would recommend trying to install them again (without having to reinstall Vivado) via this Xilinx answer record. If that doesn't seem to resolve the issue, I would also recommend checking out this thread on our Forum where all of the major troubleshooting steps for fixing cable driver issues/no hardware target detected issues are listed.
What me also puzzles is the fact that I cannot see any reaction on the Windows device manager when I plug/unplug the USB cable.
In my opinion, by plugging the USB cable one should always see a new device appearing in the device manager.
As this does not happen, I assume that my FTDI chip has a problem.
I heard some rumours that new Windows FTDI drivers could destroy chips by overwriting some vital EEprom settings.
But as to your question--does the FTDI software go bad on its own? Very unlikely. But, please, allow me to caution you: DON'T TRY TO REPROGRAM OR REFLASH THE FTDI. There have been lots of folks posting here that have done that and bricked their board as a result. (Okay, not quite, there is some special/secret Digilent sauce that can be used to rescue it, but ... you'd like to avoid that if you can.)
I know I have had problems getting the cable drivers loaded on a Linux machine. It turns out I needed to run the installer as an administrator. However, that's not your problem since you are on a Windows machine. I'll let others finish answering your question for you, but you might wish to check the other problems mentioned above.
If you have tried out other cables and a different port (as @D@n nicely reiterated) and it's not going for you, but the power light is on, then I think the next step might be to repair the FTDI chip. But, I'm not an expert in debugging these sorts of things (nor do I have the repair tool) so I'll tag @Bianca who has a lot more experience in this to help you further.
ad 2. I use - please don't laugh - the cable from my Playstation 4 controller. In order to check that this cable is a full USB cable and not only a power supply, I connected the playstation controller with this cable to the USB port of my windows machine and observed the device manager. He recognized the new USB device. I assume that this proves that the USB cable is ok.
ad 3. I plugged my old Digilent Spartan 3A board on this USB port and watched the windows device manager. The USB chip was recognized and shown on the device manager. I would say this proves that the port is ok.
Thank you for humoring me, and for completing the record! No, I didn't laugh at the playstation reference--it told you what you needed to know, and it's convincing enough to me. I think at this point, though, that I'll back out then and wait for @Bianca to step in and help--since it's not something I personally know how to fix.
I have been following this thread as I got the same issue posted here by Rainer. I tried to flash FTDI chip with "MProg/FT_Prog" in order to enable UART fast mode but something went wrong and it seems the FTDI bricked. I am using Zybo board too.
Requires Python 3.8 minimum. Please ensure you have FTDI drivers installed oravailable where the linker looks for shared libraries (e.g., PATH on windows,LD_LIBRARY_PATH or standard library directories on Linux)
To quickly resolve your problem, we recommend download and use ftd2xx.dll Fix Tool. If you have technical experience and you want to install a DLL file manually, please select your version of Windows and download ftd2xx.dll, after that copy it to the appropriate place using the instruction below, it will fix dll errors.
Some applications or games may need this file to work properly. If ftd2xx.dll is missing, whenever you start the application/game you may experience various kinds of errors. To fix those errors, please read the Recommended Solution below.
You can see from the Process Monitor logfile is that sa_api.dll is loaded and then ftd2xx.dll is loaded. Loadlibrary returns NULL and a call to GetLastError returns 126 which means the module was not found.
I am running 1909 and have run 1903 in the past, both OS run the sa_api just fine. Does Spike work on these newer computer? If yes, it is probably because the VS2012 redistributables are shipped in the Spike directory.
I'm sorry if this is a real dumb problem but I'm very knew to the electronic world and I'm having trouble installing UrJTAG to use with my brand new ARM-USB-OCD-H JTAG device. I've followed directions on Olimex's website and got drivers installed. I'm successfully able to use OpenOCD to talk to a Marvel 88W8510 through the ARM-USB-OCD-H JTAG device and Device Manager doesn't show any problems. However, after I install UrJTAG, when I try running it, I get an error message about how libusb0.dll and FTD2XX.dll is missing and that I should reinstall the program to fix the problem.
I originally used Zadig to install WinUSB (libusb) for my ARM-USB-OCD-H JTAG device. I was reading the documentation for UrJTAG and seen that it needed libusb-win32 so I started Zadig back up and installed them as well. I don't know if this will cause problems or not though. I still get the error message saying,
"The program can't start because libusb0.dll is missing from your computer. Try reinstalling the program to fix this problem."
I think I'm making progress. I believe I need to compile UrJTAG from source. I've downloaded the source for libusb-1.0.9 and successfully compiled and installed using the /mingw64 prefix (ie, /mingw64/lib is where the libraries are, /mingw64/include is where the headers are, /mingw64/lib/pkgconfig is where the pkgconfig files are, etc).
I'm a bit confused with some of the options though for UrJTAG's configure. I'm compiling using MSYS2 and Mingw64. Since I have an ARM-USB-OCD-H device, do I need to edit any files from the CDM download to get the FT2xx drivers working? Should I even be using the FT2xx drivers or would libusb take care of everything for me? And last but not least, do I need to edit anything with libusb to get it work with the ARM-USB-OCD-H device? Olimex talks about changing the DEV and VEN stuff for FT2xx but I'm not exactly what inf file I'd need to modify. Thanks!
I believe you would have to supply libFTDI but don't take that as the
truth. Don't put too much effort into compile UrJtag for win, I've
committed patches to build for windows but none of them has been worked
into the makefiles. UrJtag is dead for windows.