-This library emulates Jungo Windrvr USB functions in userspace which are
-required by XILINX impact to access the Platform cable USB. With this library
-it is possible to access the cable without loading a proprietary kernel module
-which breaks with every new kernel release. It uses the USB functions provided
-by the libusb userspace library instead and should work on every kernel version
-which is supported by libusb. It was written against impact from ISE Webpack
-9.1SP1 and will very probably not work with older impact versions (<9.1).
+This library emulates Jungo Windrvr USB and parallel port functions in
+userspace which are required by XILINX impact to access the Platform cable USB
+and Parallel Cable III.
+With this library it is possible to access the cables without loading a
+proprietary kernel module which breaks with every new kernel release. It uses
+the functionality provided by the libusb userspace library for USB access and
+the kernel interface at /dev/parport0 for parallel port access instead and
+should work on every kernel version which is supported by libusb and supports
+ppdev. It was written against impact from ISE Webpack 9.1SP1 and tested with
+the following software:
-Build the library by calling `make'.
+ * ISE 12.1
+ * ISE Webpack 11.1
+ * ISE Webpack 10.1
+ * ISE Webpack 9.2SP1, SP2, SP3, SP4
+ * ISE Webpack 9.1SP1, SP2, SP3
+ * ISE Webpack 8.2SP3
+ * ISE Webpack 8.1SP3
+ * ChipScope 10.1
+ * ChipScope 9.2.01i, 9.2.02i, 9.2.03i, 9.2.04i
+ * ChipScope 9.1.02i, 9.1.03i
+ * ChipScope 8.2.04i
+ * EDK 10.1
+ * EDK 9.2.01i, 9.2.02i
+ * EDK 9.1.01i, 9.1.02i
+ * EDK 8.2.02i
+ * EDK 8.1.02i
+ * Synplicity Identify
+
+In addition to the XILINX USB and parallel cables, devices based on the FTDI
+2232 serial converter chip are also experimentally supported. This includes
+devices like the Amontec JTAGkey(-Tiny).
+
+Build the library by calling `make'. If you are on a 64 bit system but want
+to build a 32 bit library, run `make lib32' instead. Be sure to have the 32
+bit versions of libusb-devel and libftdi-devel installed!
To use this library you have to preload the library before starting impact:
$ export LD_PRELOAD=/path/to/libusb-driver.so (for sh shells)
$ setenv LD_PRELOAD /path/to/libusb-driver.so (for csh shells)
$ impact
+
+The source for this library can be found at:
+http://git.zerfleddert.de/cgi-bin/gitweb.cgi/usb-driver
+
+The main website is located at:
+http://www.rmdir.de/~michael/xilinx/
+
+The Git repository can be cloned with:
+git clone git://git.zerfleddert.de/usb-driver
+
+
+Notes for the USB cable
+=======================
+
+To use the device as an ordinary user, put the following line in a new
+file "libusb-driver.rules" in /etc/udev/rules.d/ and restart udev:
+ACTION=="add", SUBSYSTEMS=="usb", ATTRS{idVendor}=="03fd", MODE="666"
+
+
+If your cable does not have the ID 03fd:0008 in the output of lsusb,
+the initial firmware has not been loaded (loading it changes the
+product-ID from another value to 8). To load the firmware follow
+these steps:
+
+1. If you have no /etc/udev/rules.d/xusbdfwu.rules file, copy it from
+ /path/to/ISE/bin/lin/xusbdfwu.rules to /etc/udev/rules.d/xusbdfwu.rules
+
+2. If you are running a newer version of udev (as in Debian Squeeze and
+ Ubuntu 9.10), you need to adapt the rules-file to the new udev-version:
+ sed -i -e 's/TEMPNODE/tempnode/' -e 's/SYSFS/ATTRS/g' -e 's/BUS/SUBSYSTEMS/' /etc/udev/rules.d/xusbdfwu.rules
+
+3. Install the package containing /sbin/fxload from your linux distribution.
+ It is usually called "fxload"
+
+4. copy the files /path/to/ISE/bin/lin/xusb*.hex to /usr/share/
+
+5. restart udev and re-plug the cable
+
+
+If you have multiple cables connected, you can specify the cable to use
+in the XILINX_USB_DEV environment-variable as "bus:device".
+These identifiers are available in the output of lsusb:
+Bus 001 Device 004: ID 03fd:0008 Xilinx, Inc.
+ ^^^ ^^^
+To use this cable, set the XILINX_USB_DEV variable to "001:004".
+
+
+Notes for the parallel cable
+============================
+
+To access the parallel port from userspace, the kernel needs to be built with
+the features "Parallel port support" (CONFIG_PARPORT), "PC-style hardware"
+(CONFIG_PARPORT_PC) and "Support for user-space parallel port device drivers"
+(CONFIG_PPDEV) builtin or as modules. If these features are built as modules,
+they need to be loaded before using this library.
+These modules are called:
+parport
+parport_pc
+ppdev
+
+
+To use the device as an ordinary user, put the user in the group 'lp'
+
+
+If you have an almost compatible cable which works with other software but not
+with Impact, try adding -DFORCE_PC3_IDENT to the CFLAGS line in the Makefile.
+This enables a hack by Stefan Ziegenbalg to force detection of a parallel cable.
+
+
+Parallel Cable IV is currently only supported in 'compatibility mode', as no
+attempt to configure the ECP registers is done by this library.
+
+
+If you get "Programming failed" or "DONE did not go high" when programming
+through the parallel cable with Impact 9.1, make sure to have the option "Use
+HIGHZ instead of BYPASS" enabled in Edit -> Preferences -> iMPACT Configuration
+Preferences.
+If you are using batch mode, add the following line to your cmd file:
+setPreference -pref UseHighz:TRUE
+(This problem also occurs on windows and when using the real windrvr in linux
+and is solved with the same workaround. Impact 8.2 is working fine with the same
+boards and designs)
+
+
+Notes for FTDI 2232 based cables
+================================
+
+To build the driver with FTDI 2232 support, you need to have libftdi and
+the libftdi development package installed. On debian, you can install both
+by installing 'libftdi-dev'.
+
+To set-up the device:
+1. Find out the vendor and product id of your cable using lsusb:
+ Bus 003 Device 005: ID 0403:cff8 Future Technology Devices ...
+ ~~~~~~~~~
+
+2. Copy the sample libusb-driverrc to ~/.libusb-driverrc, edit it and replace
+ the vendor and product-id in the example file with the values provided in
+ the lsusb-output. You can also change the 'parallel port' which is mapped to
+ this cable. Impact sees the device at that port as a Parallel Cable III.
+
+3. To use the device as an ordinary user, put the following line in a new file
+ in /etc/udev/rules.d/ and restart udev:
+ ACTION=="add", SUBSYSTEMS=="usb", ATTRS{idVendor}=="0403", ATTRS{idProduct}=="cff8", MODE="666"
+ (replace the vendor and product id with your values)
+
+The support for FTDI 2232 based devices is experimental and they are currently
+significantly slower than the other supported cables.
+
+
+Locked cables
+=============
+
+If you get the message 'The cable is being used by another application.' from
+impact, try running the following command:
+
+echo -e 'cleancablelock\nexit' | impact -batch
projects / usb-driver / blobdiff