Comments for Ajay https://digiajay.com Fri, 01 Apr 2022 06:27:35 +0000 hourly 1 https://wordpress.org/?v=6.2.4 Comment on 32 bit vs 64 bit FTDI driver by Ajay https://digiajay.com/ftdi-driver-knowledge-base/32-bit-vs-64-bit-ftdi-driver/#comment-13508 Fri, 01 Apr 2022 06:27:35 +0000 https://digiajay.com/?post_type=epkb_post_type_1&p=2025#comment-13508 Evan,

I have my responses in the forum link below. https://digiajay.com/forums/topic/mpsse-dlp-2232h-ft2xx-on-64-bit-labview/#post-3152

Please follow up

Thanks,
Ajay

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Comment on 32 bit vs 64 bit FTDI driver by Evan Pallesen https://digiajay.com/ftdi-driver-knowledge-base/32-bit-vs-64-bit-ftdi-driver/#comment-13491 Thu, 31 Mar 2022 14:10:59 +0000 https://digiajay.com/?post_type=epkb_post_type_1&p=2025#comment-13491 Hi. We have switched over completely to 64bit LabView on Windows 10 for the last three years. I want to use the 64 bit versions of FT2XX and MPSSE dlls to control some SPI chips with the DLP-2232H board, and wrote some VIs, but they always produce Error 1=FT_INVALID_HANDLE. Input and output for this parameter are pointer size unsigned integer (USZ on the Call Lib Function Node O/P box), and I am passing the handle pointer parameter through from one of the FT_OPEN_DEVICE functions using U64 indicators and controls. I have the source code for the dlls, but apart from an intro course on C++ in engineering applications for my 2 year degree 20 years ago, and some recent Arduino work, I am no C++ guru to be diving into the source with ease. The only advice I can find in the LabView forums seems to indicate that people have just given up on 64bit LabView and drivers, and stuck with 32bit everything, which doesn’t help me. Any suggestion you can give would be most appreciated.

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Comment on Subtle Problems in Multilevel USB Hubs by Ajay https://digiajay.com/2018/05/13/subtle-problems-in-multilevel-usb-hubs/#comment-9852 Sun, 19 Sep 2021 10:09:25 +0000 https://digiajay.com/?p=685#comment-9852 In reply to tolgahan susur.

Thanks for the valuable feedback Tolgahan. I hope that would help others.

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Comment on Subtle Problems in Multilevel USB Hubs by tolgahan susur https://digiajay.com/2018/05/13/subtle-problems-in-multilevel-usb-hubs/#comment-9847 Sun, 19 Sep 2021 07:57:35 +0000 https://digiajay.com/?p=685#comment-9847 Hi Ajay, thank you for your post, I always facing with these issues and these are my concerns;
– Windows turns off the power off USB hub after some minutes (for saving power), so you should go to device manager and change the power settings of that USB hub connection.
– Some FTDI chips are fake and we can buy without knowing, in this case Windows shut down the driver communication.
– Of course power issue, even if you externally supply the USB hub, sometimes it wont be regulated properly and you will loose the port.

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Comment on How to use FTDI FT4222H in LabVIEW by Ajay https://digiajay.com/2018/03/19/how-to-use-ftdi-ft4222h-in-labview/#comment-5345 Sat, 10 Oct 2020 09:56:36 +0000 https://digiajay.com/?p=613#comment-5345 In reply to Ilan.

Hi Ilan

Please check if you’re using 32-bit LabVIEW as this tool doesn’t support in 64-bit. For further clarifications you can always email me at mail@digiajay.com , it would be easy to debug if the error is seen visually with screenshots.

Thanks
Aj

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Comment on How to use FTDI FT4222H in LabVIEW by Ilan https://digiajay.com/2018/03/19/how-to-use-ftdi-ft4222h-in-labview/#comment-5316 Wed, 07 Oct 2020 10:36:23 +0000 https://digiajay.com/?p=613#comment-5316 Hi Aj,

I download the code FT4222 I2C from your WEB.
when i run it in the labview 16 ,windows 16 it is not read the id chip of I2C in index 0 .
in other index it read some charcters .
i get the error 5103 -D2xx_Error_decoder.vi.

what i am missing here?

thank you.
Ilan.

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Comment on How to use FTDI FT4222H in LabVIEW by Ajay https://digiajay.com/2018/03/19/how-to-use-ftdi-ft4222h-in-labview/#comment-4472 Tue, 04 Aug 2020 07:40:00 +0000 https://digiajay.com/?p=613#comment-4472 In reply to Bruce.

Hi Bruce

– Try going to device manager and find FT4222 under some tree branch. I think it should be under USB.
– Right click that item and uninstall that item (you might see two items like FT4222-A and FT42222-B, uninstall both).
– Then change your device to desired GPIO mode physically before connecting USB.
– Finally connect the USB. Hope this helps

-AJ

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Comment on How to use FTDI FT4222H in LabVIEW by Bruce https://digiajay.com/2018/03/19/how-to-use-ftdi-ft4222h-in-labview/#comment-4466 Tue, 04 Aug 2020 02:21:57 +0000 https://digiajay.com/?p=613#comment-4466 GPIO Does not appear to work, for any of the pins. Can you please elaborate of the need to uninstall the drivers for Mode changes?

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Comment on How to use FTDI FT4222H in LabVIEW by Ajay https://digiajay.com/2018/03/19/how-to-use-ftdi-ft4222h-in-labview/#comment-4281 Mon, 20 Jul 2020 05:47:08 +0000 https://digiajay.com/?p=613#comment-4281 In reply to Ilan.

It really depends on hardware and datarate in your design. Ideally, default modes would help to start with then you can move on to tuning it.

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Comment on How to use FTDI FT4222H in LabVIEW by Ilan https://digiajay.com/2018/03/19/how-to-use-ftdi-ft4222h-in-labview/#comment-4056 Wed, 08 Jul 2020 20:08:46 +0000 https://digiajay.com/?p=613#comment-4056 Which mode i have to work with FTDI as I2C (FTDI is MASTER I2C) to operate the IC FTDI 4222H with LABVIEW 2016 that will make the task fast and work ok.

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