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1 This library emulates Jungo Windrvr USB and parallel port functions in
2 userspace which are required by XILINX impact to access the Platform cable USB
3 and Parallel Cable III.
4 With this library it is possible to access the cables without loading a
5 proprietary kernel module which breaks with every new kernel release. It uses
6 the functionality provided by the libusb userspace library for USB access and
7 the kernel interface at /dev/parport0 for parallel port access instead and
8 should work on every kernel version which is supported by libusb and supports
9 ppdev. It was written against impact from ISE Webpack 9.1SP1 and tested with
10 the following software:
11
12 * ISE Webpack 9.2SP1, SP2
13 * ISE Webpack 9.1SP1, SP2, SP3
14 * ISE Webpack 8.2SP3
15 * ISE Webpack 8.1SP3
16 * ChipScope 9.2.01i, 9.2.02i
17 * ChipScope 9.1.02i, 9.1.03i
18 * ChipScope 8.2.04i
19 * EDK 9.1.01i, 9.1.02i
20 * EDK 8.2.02i
21 * EDK 8.1.02i
22 * Synplicity Identify
23
24 In addition to the XILINX USB and parallel cables, devices based on the FTDI
25 2232 serial converter chip are also experimentally supported. This includes
26 devices like the Amontec JTAGkey(-Tiny).
27
28 Build the library by calling `make'. If you are on a 64 bit system but want
29 to build a 32 bit library, run `make lib32' instead.
30
31 To use this library you have to preload the library before starting impact:
32
33 $ LD_PRELOAD=/path/to/libusb-driver.so impact
34 or
35 $ export LD_PRELOAD=/path/to/libusb-driver.so (for sh shells)
36 $ setenv LD_PRELOAD /path/to/libusb-driver.so (for csh shells)
37 $ impact
38
39 The source for this library can be found at:
40 http://git.zerfleddert.de/cgi-bin/gitweb.cgi/usb-driver
41
42 The main website is located at:
43 http://www.rmdir.de/~michael/xilinx/
44
45 The Git repository can be cloned with:
46 git clone git://git.zerfleddert.de/usb-driver
47
48
49 Notes for the USB cable
50 =======================
51
52 To use the device as an ordinary user, put the following line in a new
53 file in /etc/udev/rules.d/ and restart udev:
54 ACTION=="add", BUS=="usb", SYSFS{idVendor}=="03fd", MODE="666"
55
56
57 If your cable does not have the ID 03fd:0008 in the output of lsusb,
58 the initial firmware has not been loaded (loading it changes the
59 product-ID from another value to 8). To load the firmware follow
60 these steps:
61
62 1. If you have no /etc/udev/rules.d/xusbdfwu.rules file, copy it from
63 /path/to/ISE/bin/lin/xusbdfwu.rules to /etc/udev/rules.d/xusbdfwu.rules
64
65 2. Install the package containing /sbin/fxload from your linux distribution.
66 It is usually called "fxload"
67
68 3. copy the files /path/to/ISE/bin/lin/xusb*.hex to /usr/share/
69
70 4. restart udev and re-plug the cable
71
72
73 If you have multiple cables connected, you can specify the cable to use
74 in the XILINX_USB_DEV environment-variable as "bus:device".
75 These identifiers are available in the output of lsusb:
76 Bus 001 Device 004: ID 03fd:0008 Xilinx, Inc.
77 ^^^ ^^^
78 To use this cable, set the XILINX_USB_DEV variable to "001:004".
79
80
81 Notes for the parallel cable
82 ============================
83
84 To access the parallel port from userspace, the kernel needs to be built with
85 the features "Parallel port support" (CONFIG_PARPORT), "PC-style hardware"
86 (CONFIG_PARPORT_PC) and "Support for user-space parallel port device drivers"
87 (CONFIG_PPDEV) builtin or as modules. If these features are built as modules,
88 they need to be loaded before using this library.
89 These modules are called:
90 parport
91 parport_pc
92 ppdev
93
94
95 To use the device as an ordinary user, put the user in the group 'lp'
96
97
98 If you have an almost compatible cable which works with other software but not
99 with Impact, try adding -DFORCE_PC3_IDENT to the CFLAGS line in the Makefile.
100 This enables a hack by Stefan Ziegenbalg to force detection of a parallel cable.
101
102
103 Parallel Cable IV is currently only supported in 'compatibility mode', as no
104 attempt to configure the ECP registers is done by this library.
105
106
107 If you get "Programming failed" or "DONE did not go high" when programming
108 through the parallel cable with Impact 9.1, make sure to have the option "Use
109 HIGHZ instead of BYPASS" enabled in Edit -> Preferences -> iMPACT Configuration
110 Preferences.
111 If you are using batch mode, add the following line to your cmd file:
112 setPreference -pref UseHighz:TRUE
113 (This problem also occurs on windows and when using the real windrvr in linux
114 and is solved with the same workaround. Impact 8.2 is working fine with the same
115 boards and designs)
116
117
118 Notes for FTDI 2232 based cables
119 ================================
120
121 To build the driver with FTDI 2232 support, you need to have libftdi and
122 the libftdi development package installed. On debian, you can install both
123 by installing 'libftdi-dev'.
124
125 To set-up the device:
126 1. Find out the vendor and product id of your cable using lsusb:
127 Bus 003 Device 005: ID 0403:cff8 Future Technology Devices ...
128 ~~~~~~~~~
129
130 2. Copy the sample libusb-driverrc to ~/.libusb-driverrc, edit it and replace
131 the vendor and product-id in the example file with the values provided in
132 the lsusb-output. You can also change the 'parallel port' which is mapped to
133 this cable. Impact sees the device at that port as a Parallel Cable III.
134
135 3. To use the device as an ordinary user, put the following line in a new file
136 in /etc/udev/rules.d/ and restart udev:
137 ACTION=="add", BUS=="usb", SYSFS{idVendor}=="0403", SYSFS{idProduct}=="cff8", MODE="666"
138 (replace the vendor and product id with your values)
139
140 The support for FTDI 2232 based devices is experimental and they are currently
141 significantly slower than the other supported cables.
142
143
144 Locked cables
145 =============
146
147 If you get the message 'The cable is being used by another application.' from
148 impact, try running the following command:
149
150 echo -e 'cleancablelock\nexit' | impact -batch
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