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Messages - FTDI Community

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181
Discussion - Hardware / Re: FT4232H What controls the PWREN# pin
« on: March 28, 2022, 04:44:19 PM »
Hello,

PWREN# will go low when the device is enumerated by the Host and it may change state is the device goes into suspend mode.

As you are looking for functionality to toggle when MPSSE mode has been initiated, you could consider using one of the I/O pins as GPIO in MPSSE mode. So your software could toggle a pin after you enter MPSSE mode.

See AN_411 FTx232H MPSSE I2C Master Example in C which demonstrates GPIO usage with MPSSE (not using LibMPSSE).
This could be used as a base to understand using both I2C/GPIO in the same code.
OK this example is for I2C but the same principles apply to SPI.

More information can be found in AN_108 Command Processor For MPSSE and MCU Host Bus Emulation Modes.

Best Regards,
FTDI Community

182
Discussion - Software / Re: How to control ACBUS[8-9] in Sync 245 FIFO?
« on: March 25, 2022, 04:46:08 PM »
Hi,

all the CBUS pins are programmable through FT_PROG, https://ftdichip.com/wp-content/uploads/2020/08/AN_124_User_Guide_For_FT_PROG.pdf. Section 2.4 of the FT232H datasheet shows the ACBUS signal options https://ftdichip.com/wp-content/uploads/2020/07/DS_FT232H.pdf.

however, they can only be controlled when the device is in UART mode.

Best Regards,

FTDI Community

183
Discussion - Drivers / Re: Windows FTDI 2.14.1.3 driver
« on: March 25, 2022, 04:00:48 PM »
Hello,

driver version 2.14.1.3 was a development driver that was not for general release. it has the same core functionality as the latest driver on the website.

i recommend that you uninstall 2.14.1.3 using our CDM uninstaller and then download the latest driver from the website.

CDM Uninstaller
https://ftdichip.com/drivers/vcp-drivers/ 

when using the CDM uninstaller run it with the VID (0x0403) only.

Best Regards

FTDI Community 

184
Discussion - Software / Re: libMPSSE not working with new D2XX drivers
« on: March 24, 2022, 04:48:24 PM »
Hello,

LibMPSSE can't be used with UMFT201XB as the FT201X does not have an MPSSE Engine inside.

FT232H, FT2232H and FT4232H can be used with LibMPSSE.
Note that these can be I2C masters only.

FT201X can only be an I2C slave.

You may be interested in AN_255_USB to I2C Example using the FT232H and FT201X devices.
The software can be downloaded here:
https://ftdichip.com/wp-content/uploads/2020/07/AN_255-Files.zip

Best Regards,
FTDI Community

185
Discussion - Hardware / Re: Reverse UART RX/TX in the FTDI Dual Channel FT2232H chip
« on: March 24, 2022, 04:36:01 PM »
Hi
You could invert these signals using the FT prog utility.

From the "hardware specific" section there is an "Invert RS232 signals" section.  TX/RX can be inverted from there. 

Regards
FTDI Community 

186
General Discussion / Re: Connecting FT4232H to a Raspberry Pi 4 - no detection
« on: March 23, 2022, 11:19:35 AM »
Hello,

what version of Linux are you using? our Linux VCP drivers can be downloaded from our website https://ftdichip.com/drivers/vcp-drivers/.

are you sure that the FT4232H mini module being powered correctly? depending on the power configuration you are using, there are some external connections needed. Section 3 of the module datasheet explains this https://ftdichip.com/wp-content/uploads/2020/07/DS_FT4232H_Mini_Module.pdf.

Best Regards,

FTDI Community.

187
Discussion - Software / Re: UMFT201
« on: March 08, 2022, 05:09:12 PM »
Hello,

You have already contacted our technical support team on this matter via email.

Please feel free to post any resolution here to help other community users.

There may also be other FTDI Community users who will be able to help you.

Best Regards,
FTDI Community

188
Discussion - Software / Re: LibMPSSE - unexpected behavior of SPI_ReadWrite function
« on: March 08, 2022, 05:02:39 PM »
Hi,
What version of LibMPSSE are you using?  The latest version of libMPSSE is v0.6:
https://ftdichip.com/software-examples/mpsse-projects/libmpsse-spi-examples/

You could add debug commands to try and figure out where the delays are, Another option is not to use libMPSSE and use the d2xx drivers direct:

To use I2C/SPI as a master, see AN_135 - MPSSE Basics and our existing MPSSE Example projects:
https://ftdichip.com/wp-content/uploads/2020/08/AN_135_MPSSE_Basics.pdf
https://ftdichip.com/software-examples/mpsse-projects/

There are two options to use I2C/SPI modes with the MPSSE engine:
 
a.   Use LibMPSSE libraries. Example code is provided with the download.
b.   Use D2XX drivers direct.  AN_108 provides the necessary information
https://ftdichip.com/wp-content/uploads/2020/08/AN_108_Command_Processor_for_MPSSE_and_MCU_Host_Bus_Emulation_Modes.pdf

Regards
FTDI Community 


189
General Discussion / Re: Getting Null values while using Sample program.
« on: March 02, 2022, 04:59:27 PM »
Can you provide more detail please?
You are using UMFT221X.  What code etc, etc ......

Regards
FTDI Community

190
Discussion - Hardware / Re: FT2232H - PWREN# rising up with no reasons
« on: February 25, 2022, 04:35:58 PM »
Hello,

It sounds like there are hardware issues with your custom PCB.

Details on PWREN#:

Active low power-enable output.
PWREN# = 0: Normal operation.
PWREN# =1: USB SUSPEND mode or device has not been configured.

Please contact your local support office and we can review your schematics:

https://ftdichip.com/technical-support/

We do also have FT2232H based hardware that you can use for test, evaluation and reference.
Scroll down to products found here:

https://ftdichip.com/?s=ft2232h&post_type=product

Best Regards,
FTDI Community

191
Discussion - Hardware / Re: FT4232H MPSSE GPIOL1 Wait or Stop CLK - how use it?
« on: February 24, 2022, 04:33:02 PM »
Hi
Here's a link to the application note AN 135 - MPSSE Basics 
https://ftdichip.com/wp-content/uploads/2020/08/AN_135_MPSSE_Basics.pdf

Regards
FTDI Community

192
Discussion - Drivers / Re: FT232H and Serial Port
« on: February 22, 2022, 04:27:31 PM »
Hello,

To use I2C/SPI as a master, see AN_135 MPSSE Basics and our existing MPSSE Example projects:
 
https://ftdichip.com/software-examples/mpsse-projects/
 
There are two options to use I2C/SPI modes with the MPSSE engine:
 
a.            Use LibMPSSE libraries. Example code is provided with the download.
b.            Use D2XX drivers direct. Example code is shown at I2C/SPI.
AN_108 Command Processor For MPSSE and MCU Host Bus Emulation Modes provides the necessary information.
 
Option b is the best option to use the D2XX drivers direct (no dependency on libMPSSE library).

Unfortunately in option b above, we only have C++, Delphi and VB examples.
There is a C# example for I2C which you could use for reference.

We do have a C# wrapper which you could use to develop your own software:

https://ftdichip.com/software-examples/code-examples/csharp-examples/

Best Regards,
FTDI Community

193
Discussion - Software / Re: flash backup
« on: February 22, 2022, 03:46:15 PM »
Hello,

if you can email in at support1@ftdichip.com we have something that might help you.

Best regards

FTDI Community

194
Discussion - Software / Re: flash backup
« on: February 22, 2022, 10:47:07 AM »
Hello,

Please see the following document: https://ftdichip.com/wp-content/uploads/2020/08/AN_159-Vinculum-II-Firmware-Flash-Programming.pdf.

this explains how the device can be flashed. Section 2 covers the IDE tool suite and section 3 explains how to program via the debugger interface.

This document will also to helpful to you: https://ftdichip.com/wp-content/uploads/2020/08/AN_138_Vinculum-II_Debug_Interface_Description.pdf.

This application note is dedicated to the description of the debug interface.

Here is some more useful documentation for you:

https://ftdichip.com/wp-content/uploads/2020/08/AN_137_Vinculum-II-IO_Cell_Description.pdf

https://ftdichip.com/wp-content/uploads/2020/08/AN_142_Vinculum-II_Tool_Chain_Getting_Started_Guide.pdf

https://ftdichip.com/wp-content/uploads/2020/08/AN_144_Vinculum-II_IO_Mux_Config_Utility_User_Guide.pdf

Best Regards

FTDI Community

195
Discussion - Software / Re: Vinculum II long file name support
« on: February 17, 2022, 03:37:34 PM »
Hello,

Yes we can provide you with an LFAT driver library.

The FTP links are no longer valid as we migrated to SFTP so we are unable to share the SFTP login credentials on a public forum.

Please contact your local technical support office and we will be able to supply you the files:

https://ftdichip.com/technical-support/

Best Regards,
FTDI Community

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