Latest commit 3452953
Jan 10, 2014
fixed opening by location Signed-off-by: Pat Thoyts <email@example.com>
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README -*- text -*- ftd2xx - a Tcl interface to the FTDI D2XX USB device library This package provides a Tcl interface to the Future Technology Devices International Ltd. D2XX driver library. This is a commonly used USB device driver. See http://www.ftdichip.com/ for more details about their products and the drivers themselves. The author is not affiliated with Future Technology Devices International Ltd and this code does not represent the above company in any way. The package provides some access to the commands exposed by the D2XX library and in particular provides a Tcl channel interface to the device over which you can send and receive data. The channel acts as a standard Tcl channel and supports fileevents and nonblocking reads. The device settings can be managed using the standard Tcl channel configuration configuration command. These include the timeouts and latency values along with buffersize and blocking mode. FTDI provide a Linux driver for these devices and whilst this has not been tested there is no intrinsic reason why this package should not be easily ported to operate on that platform. COMMANDS ftd2xx open ?-serial? ?-description? ?-location? name open the named device and create a channel for it. The driver supports naming devices using one of the serial number, a descriptive device name or on windows a location (port number). See the 'ftd2xx list' command to obtain a list of attached devices with their names and locations. ftd2xx list list all the supported devices currently connected. Each list element is itself a name-value list providing all the information available on the device including the serial number, location, description, device id, device handle and status. ftd2xx reset channel this command resets the device identified by the given channel. It is likely that after this call the channel will need to be closed and the device re-opened. (untested) ftd2xx purge channel purge the device buffers for the device identified by the channel ftd2xx version return the FTDI library version (eg: 3.1.16) INSTALLATION The FTDI D2XX driver package should be downloaded from the website (http://www.ftdichip.com/Drivers/D2XX.htm). Set the FTDI_DIR variable when calling Makefile.vc to point to the driver directory that contains the ftd2xx.h header. Using MSVC (6 to 9) do: nmake -f Makefile.vc TCLDIR=c:\Tcl FTDI_DIR=..\D2XX nmake -f Makefile.vc TCLDIR=c:\Tcl FTDI_DIR=..\D2XX install If the ftd2xx.dll is not installed already, it should be manually copied to the installation folder (eg: c:\tcl\lib\tclftd2xx). It is usually installed into the system32 folder when the device driver is installed. You may have to install drivers for your device (ftdibus.sys or ftd2xx.sys). This should be provided by the device manufacturer as the driver .INF file needs to be specifically configured for each device type.