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Messages - FTDI Community

Pages: 1 ... 35 36 [37] 38 39 ... 60
541
Discussion - Software / Re: Cannot flash a firmware via VNC2 Debug Module
« on: February 14, 2020, 04:33:34 PM »
Hello,

Please ensure the VNC2 Debugger/Programmer Module drivers have installed correctly.
This can be checked in device manager.
You might want to try a driver uninstall/reinstall. See FTDI_Driver_Uninstall_with_2-12-28_Install.pdf.

The other thing to do would be to disable the COM port, because the VNC2 uses the D2XX drivers rather than VCP drivers.
This would stop any other software program claiming the COM port without you knowing, which means that the D2XX interface wouldn’t be available.
This can be changed in the EEPROM using FT_Prog which would make this change permanent.
It can also be done at Windows device manager level, but the option would only exist for that particular installation.

Then ensure that the VNC2 Debugger/Programmer Module is connected to the VNC2 module/device correctly.

Can you also try programming directly within the IDE?

Vinculum/Vinculum-II are very mature products and are no longer supported by R&D and has been superseded by FT9xx.

The best solution we have is our FT90x MCU.

There are lots of other examples available:

AN_360 FT9xx Example Applications
FT90x Software Examples
FT9xx Software Examples

There are significant benefits of FT90x:

-Eclipse based IDE
-Source code for API drivers is provided
-Significant performance improvement
-Actively in development by R&D
-Improved documentation and software examples

We provide FT9xx Development Modules and a free FT9xx Toolchain for custom application development.

If you need any further information, please email your local support team:

https://www.ftdichip.com/FTContact.htm

Best Regards,
FTDI Community

542
Discussion - Hardware / Re: FT230XQ: Powering VCC with 3.3V
« on: February 04, 2020, 02:10:19 PM »
Hello,

Yes those power connections are correct as the datasheet states, if VCC is 3V3 then 3V3OUT must also be driven with 3V3 input.

You may also want to include 47pF capacitors on the USB lines for edge rate control.
See AN_146 USB Hardware Design Guidelines for FTDI ICs for more details.

We have Development Modules available for test, evaluation and reference.

Best Regards,
FTDI Community

543
Discussion - Drivers / Re: Does D3XX driver support ARM ?
« on: January 31, 2020, 01:15:32 PM »
Hello,

You are already in email contact with your local support team.

Please continue to work with them for a beta ARM driver.

Best Regards,
FTDI Community

544
Discussion - Drivers / Re: FT_Write returning FT_OK but BytesWritten is 0
« on: January 24, 2020, 04:33:38 PM »
Hello,

Which driver version is installed? The latest is 2.12.28.

Can you please test with our standard hardware to rule out any issues with OEM hardware?

See our Development Modules:

FT-X Breakout Modules
FT-X Development Modules

It looks like you are also into contact with our support team via email. Please continue to work with your local support team member and feel free to post any resolution here to help other users.

Best Regards,
FTDI Community

545
Discussion - Drivers / Re: FT_Write returning FT_OK but BytesWritten is 0
« on: January 21, 2020, 04:30:47 PM »
Hello liquidair,

The original posts seem slightly different to your issue.

Which C# wrapper are you using? Are you using custom hardware?
This is not a common issue with FT201X I2C slave.

Have you referred to AN_255 USB to I2C Example Using the FT232H and FT201x Devices for examples on how to use FT201X?
The code can be downloaded here.

The I2C routines involve using standard D2xx functions to send buffers of commands and read bytes back from the FT232H. The routines can therefore be ported over to any other operating systems which support the D2xx drivers. Likewise, the routines can be used in other languages such as Visual Basic and C# by modifying them to use the correct syntax for the required language.

Best Regards,
FTDI Community

546
Discussion - Software / Re: Vinculum II bridging UART to a FT232HL/Q
« on: January 15, 2020, 11:02:29 AM »
Hello Jason,

V2DIP1 gives access to USB Port2 but "UART to FT232 Host Sample Application ROM" is built to access USB Port 1.

You could consider editing the code and rebuilding for USB Port 2, or purchasing V2DIP2 which gives access to both ports.
However, consider the information below.

Vinculum-II is a very mature products and has been superseded by FT9xx.

Hosting FT232 devices with these older Vinculum-II products can be unreliable.
It takes a lot of the MCUs resources to run the FT232 device code (eg FT232Uart) so there can be performance issues.
I wouldn’t recommend using this product for this application because you will most likely run into problems.

The best solution we have is our FT90x MCU.

There are lots of other examples available:

AN_360 FT9xx Example Applications
FT90x Software Examples
FT9xx Software Examples

Take a look at FT90x UART to FT232 Host Bridge, there is already a software example which can host FTDI devices.
A video has been created which demonstrates this:

https://youtu.be/_vwOKFaOcJI

There are significant benefits of FT90x:

-Eclipse based IDE
-Source code for API drivers is provided
-Significant performance improvement
-Actively in development by R&D
-Improved documentation and software examples

We provide FT9xx Development Modules and a free FT9xx Toolchain for custom application development.

Best Regards,
FTDI Community

547
Discussion - Software / Re: How to use FT201X's GPIO with C#?
« on: December 24, 2019, 10:31:15 AM »
Hello,

Section 4 of AN_373 covers CBUS bit bang examples for the FT-X series of ICs:
https://www.ftdichip.com/Support/Documents/AppNotes/AN_373%20Bit-Bang%20Modes%20for%20the%20FT-X%20Series.pdf

The Source code for the C# wrapper is available at the following:
https://www.ftdichip.com/Support/SoftwareExamples/CodeExamples/CSharp.htm
You can reference this for any function name differences, and can edit it if desired.

Best Regards,
FTDI Community

548
Hello,

Which FTDI chip part number do you have and what hardware circuit are you using?

You could try connecting it to a Windows PC via either VCP (e.g. a terminal) or D2xx to see if the hardware itself is sending back characters.

Loopback examples are suited to UART applications but if your chip is a parallel one (such as FT245R) then it needs to be connected to a suitable device (such as an FPGA or MCU) on the parallel side which will read the data and write it back in as the parallel interface does not directly allow loopback.

Also check for the RxD line (if UART) or the write strobe (if parallel) being held in the active state by the external circuit as this can result in data being sent to the PC.

Best Regards,
FTDI Community


549
Discussion - Software / Re: FT4222 question from a newbie
« on: December 20, 2019, 11:35:43 AM »
Hello,

Is the data being transmitted on the SPI bus, have you managed to scope the lines to check?

Yes the Tx buffer of the FT4222H will persist until the data is read by the master.

Best Regards,
FTDI Community

550
Discussion - Software / Re: VNC2 bridge 2 CDC slaves
« on: December 17, 2019, 02:59:39 PM »
Hello,

I noticed we are currently dealing with your questions via Email, please feel free to post any resolution here.

Best Regards,
FTDI  Community

551
Discussion - Hardware / Re: FT260 Protocol question
« on: December 17, 2019, 01:38:13 PM »
Hello,

Could you send us a copy of the descriptor which the PC receives and also details on which keyboard chipset you use.

You can reply here or send to our support address support1@ftdichip.com if you prefer.

Thanks,
FTDI Community

552
Discussion - Software / Re: Issue with FT4232 and serial coms
« on: December 13, 2019, 11:38:32 AM »
Hello,

Would it be possible to see the section of code your application is getting stuck at?

You may want to look at the FT_Timeouts function in the API:
https://www.ftdichip.com/Support/Documents/ProgramGuides/D2XX_Programmer's_Guide(FT_000071).pdf

Best Regards,
FTDI Community

553
Hello,

We are dealing with your request via email. Please feel free to add any resolution here when complete to help other community users.

Best Regards,
FTDI Community

554
Hello Maxwell,

The VCP or D2XX drivers can be used to control the IC:

However note the data transfer rates:

  • up to 1 Megabyte / second with the D2XX Direct Drivers.
  • up to 300 kilobyte / second with the VCP Drivers.

Please see the FT245R Datasheet for more information.

TN_167 FTDI FIFO Basics also provides useful information.

So if you are using the VCP port via a terminal, simple read and writes are possible.
Note the FT245R is a FIFO slave which is controlled by a master.

You can test and evaluate using our UM245R.

Best Regards,
FTDI Community

555
Discussion - Drivers / Re: Windows 10 x64/FT232RL
« on: December 11, 2019, 11:38:53 AM »
Hello,

One thing you could do is to check with USBview as shown below. This allows you to see if a device returns descriptors correctly. If the details such as idVendor and idProduct (VID and PID) are zeros then the device has not been able to communicate properly with the PC.

https://www.ftdichip.com/Support/Utilities.htm#MicrosoftUSBView

Best Regards,
FTDI Community

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