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 31 
 on: October 30, 2019, 04:11:11 PM 
Started by ConfusedIrishMan - Last Post by ConfusedIrishMan
Hi,

You can use string commands (such as sprintf) to write a string into the string variable x. This will allow you to create the string and then display it rather than have the hard-coded text string.

Best Regards,
FTDI Community

Got this sorted in the end. Your suggestion worked in a roundabout way. Thanks for the help

 32 
 on: October 28, 2019, 02:29:56 PM 
Started by dania - Last Post by FTDI Community
Hello,

It is not possible to shorten this time unfortunately as the end of the transfer is sent over a separate USB frame after the end of the data and so there is always a gap of more than one USB frame interval.

Best Regards,
FTDI Community

 33 
 on: October 28, 2019, 01:06:30 PM 
Started by ConfusedIrishMan - Last Post by ConfusedIrishMan
Thanks for the prompt reply.

Yes I understand I can place a String variable instead of a hard coded string.

However, The string variable that I place inside the function has to be a constant.

Is there any way around this?

I am updating a String variable from elsewhere and would like to display the new String when the variable changes.

Not sure if I am explaining this very well.

 34 
 on: October 28, 2019, 12:05:21 PM 
Started by ConfusedIrishMan - Last Post by FTDI Community
Hi,

You can use string commands (such as sprintf) to write a string into the string variable x. This will allow you to create the string and then display it rather than have the hard-coded text string.

Best Regards,
FTDI Community

 35 
 on: October 27, 2019, 04:08:37 PM 
Started by ConfusedIrishMan - Last Post by ConfusedIrishMan
Hi,

Using the newhaven 7" ft813 connected to an Arduino.

I am using  Ft_Gpu_CoCmd_Text(phost,140,30,31,0,"test");

to display the word test on the screen.

However the screen is part of a bigger project (naturally) and I would like to be able to change the text depending on other conditions.

String x = "test";
Something like  Ft_Gpu_CoCmd_Text(phost,140,30,31,0,x);

However this obviously isn't as straightforward as that as the function declaration for  Ft_Gpu_CoCmd_Text defines the text parameter as a const.

Is there anyway around this? I can think of a few brute force methods such as look up tables etc but just asking incase I am missing something basic.

Thanks for an help.

 36 
 on: October 25, 2019, 10:08:23 AM 
Started by Dragon - Last Post by FTDI Community
Hello,

Since this is not one of our products, although it utilises our device, I am unable to support it.
Product Manufacturers are responsible for supporting end-users of their products, so you will need to contact μFR.
FTDI cannot control how the USB ICs are used and often has no knowledge of the entire product.
Please see the following document for reference:

http://www.ftdichip.com/Support/Documents/TechnicalNotes/TN_102_OEM_Technical_Support_Requirements_for_FTDI_Products.pdf

It does sound though like the FTDI IC being used in this product is working correctly, as you are able to access and issue D2XX commands to the IC and they return without error.

Best Regards,
FTDI Community

 37 
 on: October 24, 2019, 07:22:09 PM 
Started by Dragon - Last Post by Dragon
Hello,

I have a μFR Classic here and I am trying to work with the "simple" example to see if I can read and write to and from an RFID tag. I am running this on an iMac under OSX 10.14 Mojave.
The connection to the device seems to be fine. I can retrieve info from the device, such as the serial number, description, driver version (1.4.16), etc. using the FTDI functions. But then it gets strange…

I cannot read RFID data from the device. If I put an RFID on the device, the lights begin to blink, indicating that it clearly detects and processes the tag, however all calls to FT_GetStatus() and FT_GetQueueStatus() return nothing but 0s, indicating that no information is available. Not even the UID is being read. I've been fiddling with the baud rate also but it did not make any difference.

In addition, I've been trying to write to an RFID tag. FT_Write returns no error code and tells me it wrote the 16 bytes, however, when I try to read the tag on a different reader, there is nothing on it. It clearly did not actually write anything to the RFID.

Does anyone have an idea what may be going on here?

 38 
 on: October 23, 2019, 03:26:24 PM 
Started by Chasty - Last Post by Chasty
Hello everyone, I have a Bill validator that is like a accessory, what I want is to connect it to an Android device, so I've learned I need to use a FTDI chip to accomplish it.

 39 
 on: October 23, 2019, 09:42:45 AM 
Started by dania - Last Post by dania
Hello,

time between end of transmit and disasserting SS is several miliseconds. It's possible to shorten it?

 40 
 on: October 23, 2019, 08:34:26 AM 
Started by baum - Last Post by baum
Hi,

I am using the D2XX software with a FT2232H which operates in the synchronous fifo mode. When I call the FT_GetStatus
function the number of bytes in the transmit queue are always reported as zero. I even disabled the logic which will read
from the fifo in FT2232H and after writing bytes to the FT2232H via the FT_Write function, the  FT_GetStatus function still
tells me there are no bytes in the transmit queue. I have no problems with the FT_GetQueueStatus function and the
FT2232H works as expected so far. Is there a software switch which will enable FT_GetStatus function to report the
bytes in the transmit queue or is it a feature of the DX22 software not reporting the  bytes in the transmit queue.

Regards,
Robert

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