commit 355ab4b6321b779e6a05acb694fb36285559df6f
author Brian Silverman <brians> Wed Mar 26 20:46:05 2014 -0700
committer Brian Silverman <brians> Wed Mar 26 20:46:05 2014 -0700
tree 5f4135f947e04703d1574bd263e081fd0b0cf8c6
parent bad7c8acc304676a0830f297a17b6d7a0b6b60f4

made the code run again on the robot by disabling the ultrasonic sensor

bbb_cape/src/cape/timer.h

diff --git a/bbb_cape/src/cape/timer.h b/bbb_cape/src/cape/timer.h
index a356de1..0cca0de 100644
--- a/bbb_cape/src/cape/timer.h
+++ b/bbb_cape/src/cape/timer.h
@@ -5,7 +5,7 @@
 
 // inverted is 1 for timing low periods, 0 for high ones.
 #define timer_declare(timer, irq, input, inverted, name)                   \
-  static volatile uint32_t name##_length;                                  \
+  static volatile uint32_t name##_length = 0;                              \
   void irq(void) {                                                         \
     timer->SR = ~TIM_SR_CC##input##IF;                                     \
     const uint32_t ccer = timer->CCER;                                     \