work correclty on 64bit systems with 32bit userland
[usb-driver] / README
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54357994 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
6f766a61 6the functionality provided by the libusb userspace library for USB access and
54357994 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:
0b50c513 11
7824bbf6 12 * ISE Webpack 9.1SP3
0b50c513 13 * ISE Webpack 9.1SP2
14 * ISE Webpack 9.1SP1
54fc4508 15 * ISE Webpack 8.2SP3
0b50c513 16 * ISE Webpack 8.1SP3
3b1b5fa8 17 * ChipScope 9.1.03i
0b50c513 18 * ChipScope 9.1.02i
3b1b5fa8 19 * ChipScope 8.2.04i
2c6ade7a 20 * EDK 9.1.01i
54fc4508 21 * EDK 8.2.02i
5649925c 22 * EDK 8.1.02i
113af964 23
7606d470 24In addition to the XILINX USB and parallel cables, devices based on the FTDI
252232 serial converter chip are also experimentally supported. This includes
26devices like the Amontec JTAGkey(-Tiny).
27
113af964 28Build the library by calling `make'.
29
30To use this library you have to preload the library before starting impact:
31
32$ LD_PRELOAD=/path/to/libusb-driver.so impact
33or
34$ export LD_PRELOAD=/path/to/libusb-driver.so (for sh shells)
35$ setenv LD_PRELOAD /path/to/libusb-driver.so (for csh shells)
36$ impact
fdd05738 37
45b9b80b 38The source for this library can be found at:
badd6a82 39http://git.zerfleddert.de/cgi-bin/gitweb.cgi/usb-driver
45b9b80b 40
32e2af23 41The main website is located at:
42http://www.rmdir.de/~michael/xilinx/
43
b22eea29
MG
44The Git repository can be cloned with:
45git clone git://git.zerfleddert.de/usb-driver
46
54357994 47
48Notes for the USB cable
49=======================
50
51To use the device as an ordinary user, put the following line in a new
fdd05738 52file in /etc/udev/rules.d/ and restart udev:
53ACTION=="add", BUS=="usb", SYSFS{idVendor}=="03fd", MODE="666"
979132fe 54
55
56If your cable does not have the ID 03fd:0008 in the output of lsusb,
57the initial firmware has not been loaded (loading it changes the
58product-ID from another value to 8). To load the firmware follow
59these steps:
60
c2e95a30 611. If you have no /etc/udev/rules.d/xusbdfwu.rules file, copy it from
62 /path/to/ISE/bin/lin/xusbdfwu.rules to /etc/udev/rules.d/xusbdfwu.rules
979132fe 63
642. Install the package containing /sbin/fxload from your linux distribution.
65 It is usually called "fxload"
66
673. copy the file /path/to/ISE/bin/lin/xusbdfwu.hex to /usr/share/xusbdfwu.hex
68
694. restart udev and re-plug the cable
54357994 70
71
72Notes for the parallel cable
73============================
74
75To access the parallel port from userspace, the kernel needs to be built with
76the features "Parallel port support" (CONFIG_PARPORT), "PC-style hardware"
77(CONFIG_PARPORT_PC) and "Support for user-space parallel port device drivers"
78(CONFIG_PPDEV) builtin or as modules. If these features are built as modules,
79they need to be loaded before using this library.
80These modules are called:
81parport
82parport_pc
83ppdev
84
85
86To use the device as an ordinary user, put the user in the group 'lp'
6f766a61 87
88
cdc9c5bf 89If you have an almost compatible cable which works with other software but not
05e1bfcd 90with Impact, try adding -DFORCE_PC3_IDENT to the CFLAGS line in the Makefile.
91This enables a hack by Stefan Ziegenbalg to force detection of a parallel cable.
cdc9c5bf 92
93
6f766a61 94Parallel Cable IV is currently only supported in 'compatibility mode', as no
95attempt to configure the ECP registers is done by this library.
0c71f276 96
97
98If you get "Programming failed" or "DONE did not go high" when programming
99through the parallel cable with Impact 9.1, make sure to have the option "Use
100HIGHZ instead of BYPASS" enabled in Edit -> Preferences -> iMPACT Configuration
101Preferences.
102If you are using batch mode, add the following line to your cmd file:
103setPreference -pref UseHighz:TRUE
7606d470 104(This problem also occurs on windows and when using the real windrvr in linux
105and is solved with the same workaround. Impact 8.2 is working fine with the same
0c71f276 106boards and designs)
7606d470 107
108
109Notes for FTDI 2232 based cables
110================================
111
112To build the driver with FTDI 2232 support, you need to have libftdi and
113the libftdi development package installed. On debian, you can install both
114by installing 'libftdi-dev'.
115
116To set-up the device:
1171. Find out the vendor and product id of your cable using lsusb:
118 Bus 003 Device 005: ID 0403:cff8 Future Technology Devices ...
119 ~~~~~~~~~
120
1212. Copy the sample libusb-driverrc to ~/.libusb-driverrc, edit it and replace
19020bc5 122 the vendor and product-id in the example file with the values provided in
123 the lsusb-output. You can also change the 'parallel port' which is mapped to
124 this cable. Impact sees the device at that port as a Parallel Cable III.
7606d470 125
1263. To use the device as an ordinary user, put the following line in a new file
127 in /etc/udev/rules.d/ and restart udev:
128 ACTION=="add", BUS=="usb", SYSFS{idVendor}=="0403", SYSFS{idProduct}=="cff8", MODE="666"
129 (replace the vendor and product id with your values)
130
dc587d11 131The support for FTDI 2232 based devices is experimental and they are currently
1830118e 132significantly slower than the other supported cables.
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