From: ian <ian>
Date: Tue, 18 Jan 2005 23:31:01 +0000 (+0000)
Subject: user fault indicator specified
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ijackson/git?a=commitdiff_plain;h=e6675c16ca5ec841f1e60a4131241464d36bb40c;p=trains.git

user fault indicator specified
---

diff --git a/cebpic/README.circuitry b/cebpic/README.circuitry
index f123060..6ed7775 100644
--- a/cebpic/README.circuitry
+++ b/cebpic/README.circuitry
@@ -96,8 +96,6 @@ the `apply track power' instruction, or similar.)
 User Fault Indicator
 --------------------
 
-*** PROVISIONAL ***
-
 The User Fault Indicator output controls, directly, the green segment
 of the `track power' tri-colour indicator LED.  This segment should be
 lit by the PIC whenever an overload has been detected and the fault
@@ -107,6 +105,10 @@ When a fault is present, the PIC should occasionally attempt to
 reapply track power, so that it can indicate to the user when the
 fault has been fixed.
 
+   Output pin     Green segment
+      H		      off
+      Z		      off
+      L		      ON
 
 
 SERIAL PORT