Diff: main.cpp

Revision:

0:ae42d6933214

Child:

1:a9315bd73ea5

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Nov 02 12:33:15 2016 +0000
@@ -0,0 +1,265 @@
+
+#define CHARGER_PRESET 32
+//#define CHARGER_PRESET 16
+
+#include "mbed.h"
+
+AnalogIn cp_value(A1);      //A1 – PWM sense, analog read
+AnalogIn pp_value(A2);      //A2 - PP, analog reads
+PwmOut my_pwm(D5);          //pwm pin 5
+DigitalOut lock(D7);
+InterruptIn button(D8);
+
+DigitalOut relay(D12);
+DigitalOut contactor(D13);
+
+Timer buttonTimer; //CC for reset button
+Timeout buttonTimeout; //CC for reset button
+
+DigitalOut green(D9);
+DigitalOut red(D10);
+DigitalOut blue(D11);
+
+unsigned char control_pilot;
+float pwm;
+
+#define PILOT_12V   1
+#define PILOT_9V    2
+#define PILOT_6V    3
+#define PILOT_NOK   4
+#define PILOT_RESET 5
+
+#define NUM_SAMPLES 2000 // size of sample series
+
+#define SAMPLE_BLOCKS 1 //CC for reset button
+#define RESET_SECONDS 5 //CC for reset button
+
+bool resetDown = false;
+bool resetCharger = false;
+
+float CP_average=0;
+float CP_previous_average=0;
+float PP_value;
+float PP_reading;
+
+unsigned char cableType;
+unsigned char chargerType;
+
+void timedOut() {
+    resetCharger = true;
+    printf("Button pressed for more than 3 sec ! Charger reset !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! \r\n");
+}
+
+void resetPress() {
+    printf("Reset button pressed ... starting timer \r\n");
+    buttonTimer.stop();
+    buttonTimer.reset();
+    buttonTimer.start();
+    resetDown = true;   
+    buttonTimeout.attach(&timedOut, RESET_SECONDS);   
+}   
+
+void resetRelease() {
+    printf("Reset button released \r\n");
+    int elapsedSeconds = buttonTimer.read();
+    buttonTimer.stop();
+    buttonTimer.reset();
+    if (elapsedSeconds > 3) {
+        resetCharger = true;
+        printf("Button was pressed for more than 3 sec !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! \r\n");
+    }
+    else{
+    printf("If we're getting here then we've released the button before 3 seconds were up.\r\n");
+    }
+    printf("We will detach the timeout an setup for the next time.\r\n");
+    printf("%u \r\n", elapsedSeconds);
+    buttonTimeout.detach();
+}
+
+
+int main() {     
+
+    button.fall(&resetPress);
+    button.rise(&resetRelease);
+    
+    while(1){
+           
+  //----------------------END Cable detection, Charger Power Check, Cable Power Check---------------------------//           
+        float PP_value = pp_value.read();
+        PP_value = PP_value * 3300;
+   
+        if(PP_value == 3300){
+            printf("Cable not detected \r\n");
+            printf("Charger Type %u AMP \r\n", CHARGER_PRESET);
+            chargerType = 0;
+        }//end if
+        else{
+            if(CHARGER_PRESET == 16){
+                chargerType = 16;
+                printf("Charger 16AMP ONLY \r\n");
+                pwm=0.734;
+                printf("PWM @ 26.6% \r\n");
+            }// end if
+            else if(CHARGER_PRESET == 32){
+                if((PP_value > 200) && (PP_value < 300)){
+                    printf("32 AMP charger \n\r\r");
+                    printf("16 AMP cable detected \n\r\r");
+                    chargerType = 16;
+                    pwm=0.734;
+                    printf("PWM @ 26.6%\r\n");
+                }    
+                if((PP_value > 0 ) && (PP_value < 100)){ 
+                    printf("32 AMP charger \n\r\r"); 
+                    printf("32 AMP cable detected \r\n");
+                    chargerType = 32;
+                    pwm=0.468;
+                    printf("PWM @ 52.2%\r\n");
+
+                }
+            }
+        
+       }
+ //--------------------------------------Post instertatiom signaling CP-----------------------------------------//      
+
+   
+        
+   
+        for (int i = 0; i < NUM_SAMPLES ; i++){
+            float CP_sample_value = cp_value.read_u16();
+            CP_sample_value = (float) 3300 / 65535 * (float) CP_sample_value;  // convert sample to voltage
+            CP_average = ((CP_sample_value + (i * CP_previous_average)) / (i+1));
+            CP_previous_average = CP_average; 
+        }
+        printf("CP Average Value   = %.f \n\r", CP_average);
+        printf("PP Value           = %.0f mV\n\r",PP_value);
+        printf("\n\r");
+
+ 
+ 
+ //--------------------------------------------- PILOT CHECK --------------------------------------------------//
+
+if(chargerType == 0){   
+    control_pilot = PILOT_12V;
+    resetCharger = false;  //-----check this for restet------//
+    printf("12 V \n\r");
+    printf("\n\r");
+}
+
+if(chargerType == 16){
+        if(((CP_average > 1900)&&(2100 > CP_average))||((CP_average > 550)&&(650 > CP_average))){
+            control_pilot = PILOT_9V;
+            printf("16amp@ 9 V \n\r");
+            printf("\n\r");
+        }
+        
+       if((CP_average > 400)&&(500 > CP_average)){
+            control_pilot = PILOT_6V;
+            printf("16amp@ 6 V \n\r");
+            printf("\n\r");
+       }
+
+        if((resetCharger == true)||((CP_average > 700)&&(800 > CP_average))){
+            control_pilot = PILOT_RESET;
+            printf("reset \n\r");
+            printf("\n\r");
+        }
+}
+if(chargerType == 32){
+        if(((CP_average > 1900)&&(2100 > CP_average))||((CP_average > 1070)&&(1170 > CP_average))){
+            control_pilot = PILOT_9V;
+            printf("32amp@ 9 V \n\r");
+            printf("\n\r");
+        }
+        if((CP_average > 730)&&(830 > CP_average)){
+            control_pilot = PILOT_6V;
+            printf("32amp@ 6 V \n\r");
+            printf("\n\r");
+        }
+        if(resetCharger == true){
+            control_pilot = PILOT_RESET;
+            printf("reset \n\r");
+            printf("\n\r");
+        }
+}
+
+ //------------------------------------------- STATE ASSIGNED ------------------------------------------------//
+       
+switch(control_pilot) {
+        case PILOT_12V:
+            printf("Charger in STATE A\r\n");
+            printf("PILOT_12V - Pilot at 12 V \n\r");
+            my_pwm = 0;
+            contactor =0;
+            lock=0;
+            red = 0;
+            green = 0;
+            blue = 1;
+            break;
+  
+        case PILOT_9V:
+            contactor =0;
+            // relay=0;
+            lock=1;
+            my_pwm.period_ms(1);
+            my_pwm.pulsewidth_ms(1);
+            //my_pwm.write(0.734);
+            my_pwm.write(pwm);
+            printf("Charger in STATE b\r\n");
+            printf("PILOT_9V - Pilot at 9 V \n\r");
+            red = 1;
+            green = 1;
+            blue = 0;
+            break;
+                
+        case PILOT_6V:
+            contactor =1;
+            relay=1;
+            lock=1;
+            my_pwm.period_ms(1);
+            my_pwm.pulsewidth_ms(1);
+            my_pwm.write(pwm); // 8 amp charger setup
+            //my_pwm.write(0.734); // 16 amp charger setup
+
+            printf("Charger in STATE c\r\n");
+            printf("PILOT_6V - Pilot at 6 V \n\r");
+            red = 0;
+            green = 1;
+            blue = 0;
+            break;
+                   
+        case PILOT_NOK:
+            printf("Error");
+            printf("PILOT_NOK - Pilot ERROR \n\r");
+            lock=0;
+            red = 1;
+            green = 0;
+            blue = 0;
+            break;
+            
+        case PILOT_RESET:
+            printf("RESET IMPLEMENTED \n\r");
+            printf("PILOT_RESET - Pilot at -12V \n\r");
+            my_pwm.period_ms(1);
+            my_pwm.pulsewidth_ms(1);
+            my_pwm.write(1);
+            contactor =0;
+            relay=0;
+            lock=0;
+            red = 1;
+            green = 0;
+            blue = 0;
+            wait(0.5); // 200 ms
+            red = 0; // LED is OFF
+            wait(0.2); // 1 sec
+            break;
+           
+        }//end switch
+      
+ //wait(2);      
+       
+  } //end while(1)
+  
+} //end main  
+    
+
+