document this app a bit

[tinyos-2.x.git] / apps / tutorials / BlinkFail / README.txt

diff --git a/apps/tutorials/BlinkFail/README.txt b/apps/tutorials/BlinkFail/README.txt
index 3696539e29809366e1dac306d42b457b8234288c..88e1c09868beaf4594d7a4fa0f6e3248f792733e 100644 (file)
--- a/apps/tutorials/BlinkFail/README.txt
+++ b/apps/tutorials/BlinkFail/README.txt
@@ -3,14 +3,21 @@ Author/Contact: tinyos-help@millennium.berkeley.edu
 
 Description:
 
+BlinkFail is based on Blink (described below).  It is designed to
+violate memory safety after a few seconds and is used as a
+demonstration and sanity check for Safe TinyOS.  For more information
+about Safe TinyOS see here:
+
+  http://www.cs.utah.edu/~coop/safetinyos/
+
 Blink is a simple application that blinks the 3 mote LEDs. It tests
 that the boot sequence and millisecond timers are working properly.
 The three LEDs blink at 1Hz, 2Hz, and 4Hz. Because each is driven by
-an independent timer, visual inspection can determine whether there are
-bugs in the timer system that are causing drift. Note that this 
+an independent timer, visual inspection can determine whether there
+are bugs in the timer system that are causing drift. Note that this
 method is different than RadioCountToLeds, which fires a single timer
-at a steady rate and uses the bottom three bits of a counter to display
-on the LEDs.
+at a steady rate and uses the bottom three bits of a counter to
+display on the LEDs.
 
 Tools: