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add note about Parallel Cable IV
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1This library emulates Jungo Windrvr USB and parallel port functions in
2userspace which are required by XILINX impact to access the Platform cable USB
3and Parallel Cable III.
4With this library it is possible to access the cables without loading a
5proprietary kernel module which breaks with every new kernel release. It uses
6the functionality provided by the libusb userspace library for USB access and
7the kernel interface at /dev/parport0 for parallel port access instead and
8should work on every kernel version which is supported by libusb and supports
9ppdev. It was written against impact from ISE Webpack 9.1SP1 and tested with
10the following software:
11
12 * ISE Webpack 9.1SP2
13 * ISE Webpack 9.1SP1
14 * ISE Webpack 8.2SP3
15 * ISE Webpack 8.1SP3
16 * ChipScope 9.1.02i
17 * EDK 8.2.02i
18
19Build the library by calling `make'.
20
21To use this library you have to preload the library before starting impact:
22
23$ LD_PRELOAD=/path/to/libusb-driver.so impact
24or
25$ export LD_PRELOAD=/path/to/libusb-driver.so (for sh shells)
26$ setenv LD_PRELOAD /path/to/libusb-driver.so (for csh shells)
27$ impact
28
29
30Notes for the USB cable
31=======================
32
33To use the device as an ordinary user, put the following line in a new
34file in /etc/udev/rules.d/ and restart udev:
35ACTION=="add", BUS=="usb", SYSFS{idVendor}=="03fd", MODE="666"
36
37
38If your cable does not have the ID 03fd:0008 in the output of lsusb,
39the initial firmware has not been loaded (loading it changes the
40product-ID from another value to 8). To load the firmware follow
41these steps:
42
431. If you have no /etc/udev/rules.d/xusbdfwu.rules file, copy it from
44 /path/to/ISE/bin/lin/xusbdfwu.rules to /etc/udev/rules.d/xusbdfwu.rules
45
462. Install the package containing /sbin/fxload from your linux distribution.
47 It is usually called "fxload"
48
493. copy the file /path/to/ISE/bin/lin/xusbdfwu.hex to /usr/share/xusbdfwu.hex
50
514. restart udev and re-plug the cable
52
53
54Notes for the parallel cable
55============================
56
57To access the parallel port from userspace, the kernel needs to be built with
58the features "Parallel port support" (CONFIG_PARPORT), "PC-style hardware"
59(CONFIG_PARPORT_PC) and "Support for user-space parallel port device drivers"
60(CONFIG_PPDEV) builtin or as modules. If these features are built as modules,
61they need to be loaded before using this library.
62These modules are called:
63parport
64parport_pc
65ppdev
66
67
68To use the device as an ordinary user, put the user in the group 'lp'
69
70
71Parallel Cable IV is currently only supported in 'compatibility mode', as no
72attempt to configure the ECP registers is done by this library.
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