increase programming speed by a factor of 4.

[usb-driver] / README

diff --git a/README b/README
index 13737b53039f8a816b70561d28ea0a20ea8518fa..768c72405a2421d371db9a4cdaf339a1d8d79099 100644 (file)
--- a/README
+++ b/README
@@ -14,8 +14,11 @@ the following software:
  * ISE Webpack 9.1SP1
  * ISE Webpack 8.2SP3
  * ISE Webpack 8.1SP3
  * ISE Webpack 9.1SP1
  * ISE Webpack 8.2SP3
  * ISE Webpack 8.1SP3

+ * ChipScope 9.1.03i

  * ChipScope 9.1.02i
  * ChipScope 9.1.02i

+ * ChipScope 8.2.04i

  * EDK 8.2.02i
  * EDK 8.2.02i

+ * EDK 8.1.02i

 
 Build the library by calling `make'.
 
 
 Build the library by calling `make'.
 


@@ -30,6 +33,9 @@ $ impact
 The source for this library can be found at:
 http://cvs.zerfleddert.de/cgi-bin/viewcvs.cgi/usb-driver/
 
 The source for this library can be found at:
 http://cvs.zerfleddert.de/cgi-bin/viewcvs.cgi/usb-driver/
 

+The main website is located at:
+http://www.rmdir.de/~michael/xilinx/
+

 
 Notes for the USB cable
 =======================
 
 Notes for the USB cable
 =======================


@@ -72,6 +78,11 @@ ppdev
 To use the device as an ordinary user, put the user in the group 'lp'
 
 
 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.
 
 Parallel Cable IV is currently only supported in 'compatibility mode', as no
 attempt to configure the ECP registers is done by this library.