TPS read and tidy up

ECU.ino

@@ -7,6 +7,7 @@ void setup() {
   // Sensors
   pinMode(pin_map, INPUT);
   pinMode(pin_batt, INPUT);
+  pinMode(pin_throttle, INPUT);
   
   // Dash / debug outputs
   pinMode(pin_tach, OUTPUT);
@@ -21,9 +22,10 @@ void setup() {
   // Set up serial speed etc and do intro output
   debug_setup();
   
-  // Get an initial reading and output debug if it's not atmospheric
+  // Get initial values and check they are sane
   map_init();
   battery_init();
+  throttle_init();
 }
 
 void loop() {

data.h

@@ -25,14 +25,14 @@ unsigned long   cas_sgc_lastrise        = 0;              // micros() of the las
 unsigned long   cas_sgc_lastfall          = 0;            //    ""    of the last fall
 byte            cas_sgc_lastvalue         = 0;            // The state of SGC on the previous cycle
 
-byte            cas_sync_fail           = 0;
-byte            cas_sync_fail_log       = 0;
+byte            cas_sync_fail             = 0;            // We lost track of a cylinder
+byte            cas_sync_fail_log         = 0;            // We need to output this in debug
 
 // Cylinder sequencing
 byte            cylinder_tdc              = 0;            // Most recent cylinder to hit TDC
 byte            cylinder_next_fire        = 0;            // Next cylinder due a spark
 //byte          cylinder_next_inject      = 0;            // Next cylinder due fuel
-byte            cylinder_next[]         = {0,2,1,2,1};    // CAn be 0,3,1,4,2 if we ever go sequential
+byte            cylinder_next[]           = {0,2,1,2,1};  // Can be 0,3,1,4,2 if we ever go sequential
 
 // Ignition
 const int       coil_dwell                = 4000;         // 4 read from scope on factory ECU
@@ -53,3 +53,9 @@ byte              battery_voltage_index   = 7;            // The above as an ind
 const int       battery_cal_7v            = 252;          // Cal value for 7v using 10k/1k potential divider
 const int       battery_cal_16v           = 579;          // The above for 16v
 
+// TPS
+byte            throttle_current_value    = 0;            // Percentage
+byte            throttle_previous_1_value = 0;            // Percentage
+byte            throttle_previous_2_value = 0;            // Percentage
+byte            throttle_delta            = 0;            // Difference between current and delta
+

debug.ino

@@ -17,6 +17,8 @@ void debug_setup()
   Serial.print("rpm_current_value");
   Serial.print(",");
   Serial.print("battery_voltage_value");
+  Serial.print(",");
+  Serial.print("throttle_current_value");
   Serial.println("");
 
   // Now we have init we can do real loop
@@ -37,6 +39,8 @@ void task_debug_run()
   Serial.print(rpm_current_value);
   Serial.print(",");
   Serial.print(battery_voltage_value);
+  Serial.print(",");
+  Serial.print(throttle_current_value);
   Serial.println("");
 
   // Log if we're out of sync timing-wise

pins.h

@@ -7,7 +7,7 @@ const int pin_cas_sgt             = 18;   // IN: ignition pulse -white
 const int pin_tach                = 49;  // OUT: pulse for tach
 //const int pin_intake_temp       = A0;   // IN: Intake temperature
 //const int pin_coolant_temp      = A1;   // IN: Coolant temperature
-//const int pin_throttle_position = A2;   // IN: Throttle position
+const int pin_throttle            = A2;   // IN: Throttle position
 const int pin_map                 = A3;   // IN: Manifold absolute pressure
 const int pin_batt                = A4;   // IN: Battery voltage
 //const int pin_o2                = A8;   // IN: O2 sensor

schedule.h

@@ -1,6 +1,9 @@
 unsigned long         task_map                =     1;              // Get initial figure
 const unsigned long   task_map_interval       =     93000;          // 93ms
 
+unsigned long         task_throttle           =     1;              // Get initial figure
+const unsigned long   task_throttle_interval  =     88000;          // 88ms
+
 unsigned long         task_rpm                =     1;              // Get initial figure
 const unsigned long   task_rpm_interval       =     199000;         // 199ms
 

schedule.ino

@@ -45,6 +45,11 @@ void schedule_process()
     task_rpm = micros() + task_rpm_interval;
     task_rpm_run();
     tasks++;
+  }else if(micros() > task_throttle)
+  {
+    task_throttle = micros() + task_throttle_interval;
+    task_throttle_run();
+    tasks++;
   }else if(micros() > task_battery)
   {
     task_battery = micros() + task_battery_interval;

throttle.ino

@@ -0,0 +1,13 @@
+void throttle_init()
+{
+  task_throttle_run();
+}
+
+void task_throttle_run()
+{
+  throttle_previous_2_value = throttle_previous_1_value;
+  throttle_previous_1_value = throttle_current_value;
+  throttle_current_value = map(analogRead(pin_throttle), 0, 1023, 0, 100);
+}
+
+