Add a loops per second benchmarking channel for logging

comms.ino

@@ -80,7 +80,8 @@ This function returns the current values of a fixed group of variables
 */
 void sendValues(int length)
 {
-  byte response[24];
+  byte packetSize = 25;
+  byte response[packetSize];
   
   response[0] = currentStatus.runSecs; //rtc.sec;
   response[1] = currentStatus.squirt; //Squirt Bitfield
@@ -106,8 +107,9 @@ void sendValues(int length)
   response[21] = 0x00; //Will be TPS DOT
   response[22] = currentStatus.advance;
   response[23] = currentStatus.TPS; // TPS (0% to 100%)
+  response[24] = currentStatus.loopsPerSecond / 10; // How fast the system is running (Main loops per second divided by 10)
 
-  Serial.write(response, (size_t)24);
+  Serial.write(response, (size_t)packetSize);
   Serial.flush();
   return; 
 }

globals.h

@@ -45,6 +45,7 @@ struct statuses {
   byte engine;
   unsigned long PW; //In uS
   byte runSecs;
+  unsigned int loopsPerSecond;
   
   //Helpful bitwise operations:
   //Useful reference: http://playground.arduino.cc/Code/BitMath

reference/speeduino 0.1.ini

@@ -718,7 +718,7 @@ help = helpEnrichments, "Enrichments Help"
 
    ochGetCommand    = "A"
 
-   ochBlockSize     =  24
+   ochBlockSize     =  25
 
    secl             = scalar, U08,  0, "sec",    1.000, 0.000
    squirt           = scalar, U08,  1, "bits",   1.000, 0.000
@@ -752,6 +752,7 @@ help = helpEnrichments, "Enrichments Help"
    TPSdot           = scalar, U08, 21, "%/s",    1.000, 0.000
    advance          = scalar, U08, 22, "deg",    1.000, 0.000
    tps              = scalar, U08, 23, "%",      1.000, 0.000
+   loopsPerSecond10 = scalar, U08, 24, "loops",  1.000, 0.000
 
    ; Computed output channels.  See "megatuneExamples.ini" for all the
    ; pre-defined variables, search for "???" and you'll see them.
@@ -763,6 +764,7 @@ help = helpEnrichments, "Enrichments Help"
    mat              = { tempCvt(table(matADC, "matfactor.inc")-40)   } ; Manifold temperature in user units.
    rpm              = { rpm100*100                                   } ; True RPM.
    time             = { timeNow                                      } ; "timeNow" is a parameterless built-in function.
+   loopsPerSecond   = { loopsPerSecond10*10                          } ; True number of mainloops per second
 
    afrtarget        = { 0 }
 #include "lambdaSensors.ini"

speeduino.ino

@@ -67,7 +67,7 @@ byte coilHIGH = HIGH;
 byte coilLOW = LOW;
 
 struct statuses currentStatus;
-int loopCount;
+int mainLoopCount;
 unsigned long secCounter; //The next time to increment 'runSecs' counter.
 
 void setup() 
@@ -152,7 +152,7 @@ void setup()
     cbi(ADCSRA,ADPS0);
   #endif
   
-  loopCount = 0;
+  mainLoopCount = 0;
   
   //Setup other relevant pins
   pinMode(pinMAP, INPUT);
@@ -167,15 +167,14 @@ void setup()
 
 void loop() 
   {
-      loopCount++;    
+      mainLoopCount++;    
       //Check for any requets from serial
-      if (loopCount == 50) //Only check the serial buffer (And hence process serial commands) once every x loops (50 Is more than fast enough for TunerStudio)
+      if ((mainLoopCount & 63) == 1) //Only check the serial buffer (And hence process serial commands) once every 64 loops (64 Is more than fast enough for TunerStudio). This function is equivalent to ((loopCount % 64) == 1) but is considerably faster due to not using the mod or division operations
       {
         if (Serial.available() > 0) 
         {
           command();
         }
-        loopCount = 0;
       }
      
      /*

timers.ino

@@ -35,12 +35,19 @@ ISR(TIMER2_OVF_vect)
   {
     loopSec = 0; //Reset counter.
 
+    //**************************************************************************************************************************************************
+    //This updates the runSecs variable
     //If the engine is running or cranking, we need ot update the run time counter.
     if (((currentStatus.engine & ENGINE_RUN) || (currentStatus.engine & ENGINE_CRANK)))
     { //NOTE - There is a potential for a ~1sec gap between engine crank starting and ths runSec number being incremented. This may delay ASE!         
       if (currentStatus.runSecs <= 254) //Ensure we cap out at 255 and don't overflow. (which would reset ASE)
         { currentStatus.runSecs++; } //Increment our run counter by 1 second.
     }
+    //**************************************************************************************************************************************************
+    //This records the number of main loops the system has completed in the last second
+    currentStatus.loopsPerSecond = mainLoopCount;
+    mainLoopCount = 0;
+    //**************************************************************************************************************************************************
     
     //Reset Timer2 to trigger in another ~10ms
     TCNT2  = 99;           //Preload timer2 with 100 cycles, leaving 156 till overflow.