[chronojump] Race analyzer. Fixed sample time measuring issue

[Xavier Padullés <xpadulles src gnome org>]

commit 4e26c783f68dfac7e4ad098947ff4273fc1cff29
Author: Xavier Padullés <x padulles gmail com>
Date:   Wed Mar 6 10:06:33 2019 +0100

    Race analyzer. Fixed sample time measuring issue

 arduino/raceAnalyzer/raceAnalyzer.ino | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)
---
diff --git a/arduino/raceAnalyzer/raceAnalyzer.ino b/arduino/raceAnalyzer/raceAnalyzer.ino
index ccb59b61..aada4897 100644
--- a/arduino/raceAnalyzer/raceAnalyzer.ino
+++ b/arduino/raceAnalyzer/raceAnalyzer.ino
@@ -11,8 +11,8 @@ int lastEncoderDisplacement = 0;
 volatile unsigned long changingTime = 0;
 unsigned long elapsedTime = 0;
 unsigned long totalTime = 0;
-unsigned long lastTime = 0;
-//int position = 0;
+unsigned long lastSampleTime = 0;
+unsigned long sampleTime = 0;
 
 //Version of the firmware
 String version = "Race_Analyzer-0.1";
@@ -73,20 +73,19 @@ void loop() {
       }
     }
 
-    unsigned long Time = changingTime;
     //int lastEncoderDisplacement = encoderDisplacement; //Assigned to another variable for in the case that 
encoder displacement changes before printing it
 
     //Managing the timer overflow
-    if (Time > lastTime)      //No overflow
+    if (sampleTime > lastSampleTime)      //No overflow
     {
-      elapsedTime = Time - lastTime;
-    } else  if (Time <= lastTime)  //Overflow
+      elapsedTime = sampleTime -  lastSampleTime;
+    } else  if (sampleTime <=  lastSampleTime)  //Overflow
     {
-      elapsedTime = (4294967295 - lastTime) + Time; //Time from the last measure to the overflow event plus 
the changingTime
+      elapsedTime = (4294967295 -  lastSampleTime) + sampleTime; //Time from the last measure to the 
overflow event plus the changingTime
     }
     totalTime += elapsedTime;
     int meanOffsettedData = total / nReadings;
-    lastTime = Time;
+     lastSampleTime = sampleTime;
 
     //Sending in text mode
     Serial.print(lastEncoderDisplacement);
@@ -121,7 +120,8 @@ void changingA() {
     //digitalWrite(13, LOW);
   }
   if (abs(encoderDisplacement) >= pps) {
-    lastEncoderDisplacement = encoderDisplacement;
+    lastEncoderDisplacement = encoderDisplacement;  //We need to save this value because it can change very 
quickly
+    sampleTime = changingTime;                      //We need to save this value because it can change very 
quickly
     encoderDisplacement = 0;
     processSample = true;
   }
@@ -165,7 +165,7 @@ void start_capture()
 {
   Serial.println("Starting capture...");
   totalTime = 0;
-  lastTime = micros();
+  lastSampleTime = micros();
   capturing = true;
   encoderDisplacement = 0;
 }