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Messages - FTDI Community

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541
Discussion - Software / Re: FT813 Touch Issue
« on: March 03, 2020, 02:06:52 PM »
Hello,

Thanks I can see your Init code is still the same as when we were corresponding via email.
Issuing the CMD_KEYS command to EVE should not affect touch detection.

The FT5x06 series is supported natively in EVE, but can you double check that the touch controller is reporting back touches with an oscilloscope on its data lines?
 

Best Regards,
FTDI Community

542
Discussion - Software / Re: FT813 Touch Issue
« on: February 26, 2020, 11:26:33 AM »
Hello Asma,

Yes, I remember your email regarding this last week and telling you to add the 'while (EVE_MemRead8(REG_CPURESET) != 0x00)' check into your initialization. As a side result of this check this should ensure that the touch engine is active. This did resolve the issue you were seeing.

Did you change anything else in your code before it stopped working again?
And just to clarify are you calming that the removal of the 'while (EVE_MemRead8(REG_CPURESET) != 0x00)' check resolves the issue and your touches are being registered?
I'm curious as to what else has changed in your code? Can I see your initialization code?

Also what is the touch controller on your display?

Best Regards,
FTDI Community

543
Discussion - Software / Re: FT813 Touch Issue
« on: February 25, 2020, 11:30:49 AM »
Hello Asma,

From the information you have provided it sounds like this could be related to a hardware issue.
Can you check the signals from the touch controller on your board with an oscilloscope to verify the touch controller is reporting back touches?

Best Regards,
FTDI Community

544
Discussion - Software / Re: Cannot flash a firmware via VNC2 Debug Module
« on: February 18, 2020, 04:33:20 PM »
Hello,

The VNC2 Debugger can only be used with the D2XX Drivers.

You do not need to rewrite VID/PID on the EEPROM, only disable the VCP Port.
As mentioned, this can also be done in Windows Device Manager if you do not want to change the EEPROM.

If you need further support, contact your local support office:

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

Best Regards,
FTDI Community

545
Discussion - Software / Re: Vinculum II bridging UART to a FT232HL/Q
« on: February 18, 2020, 04:31:43 PM »
Hello Jason,

The FT90x is unable to accept RS232. An external RS232 transceiver is required to convert from TTL to RS232.

Best Regards,
FTDI Community

546
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

547
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

548
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

549
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

550
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

551
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

552
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

553
Discussion - Drivers / Re: ftd2xx on raspberry pi not sending and acting like it continuously receives.
« on: December 23, 2019, 01:25:55 PM »
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


554
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

555
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

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