From: michael <michael>
Date: Sun, 18 Mar 2007 16:49:40 +0000 (+0000)
Subject: add not about UseHIGHZ when programming with the parallel cable
X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/usb-driver/commitdiff_plain/0c71f276bdaf0c8d264257c845b674c6413054f5

add not about UseHIGHZ when programming with the parallel cable
---

diff --git a/README b/README
index b7af9ac..277ffe6 100644
--- a/README
+++ b/README
@@ -70,3 +70,14 @@ To use the device as an ordinary user, put the user in the group 'lp'
 
 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)