X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/usb-driver/blobdiff_plain/113af964d4755463290619de12bd6bdecac820e4..e9b47752d69b861b1677221984ef4bed414ec877:/README?ds=inline diff --git a/README b/README index 87294ca..1498a9a 100644 --- a/README +++ b/README @@ -1,10 +1,28 @@ -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: + + * ISE Webpack 9.1SP3 + * ISE Webpack 9.1SP2 + * ISE Webpack 9.1SP1 + * ISE Webpack 8.2SP3 + * ISE Webpack 8.1SP3 + * ChipScope 9.1.03i + * ChipScope 9.1.02i + * ChipScope 8.2.04i + * EDK 8.2.02i + * EDK 8.1.02i + +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'. @@ -15,3 +33,99 @@ or $ 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 in /etc/udev/rules.d/ and restart udev: +ACTION=="add", BUS=="usb", SYSFS{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. Install the package containing /sbin/fxload from your linux distribution. + It is usually called "fxload" + +3. copy the file /path/to/ISE/bin/lin/xusbdfwu.hex to /usr/share/xusbdfwu.hex + +4. restart udev and re-plug the cable + + +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", BUS=="usb", SYSFS{idVendor}=="0403", SYSFS{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.