Diff: Multiplexer_read.cpp

Revision:

5:c89afbb7d0b2

Parent:

4:57163b0e7dbc

Child:

6:d61faae1989d

--- a/Multiplexer_read.cpp	Mon Sep 08 18:21:48 2014 +0000
+++ b/Multiplexer_read.cpp	Mon Sep 08 20:41:22 2014 +0000
@@ -1,8 +1,5 @@
 #include "mbed.h"
 
-#include "USBSerial.h"
-
-#include "EthernetInterface.h"
 //***************************************************************************************************
 //Outputs
 
@@ -13,23 +10,17 @@
 DigitalOut timetest_0 (p30);
 DigitalOut timetest_1 (p29);
 
-PwmOut Bremsenstrom_MOSFET(p21);
-PwmOut Motroregler_PWM(p22);
-
+//PWMout Mosfet(p21);
 
 BusOut    unused(p18);
 
 //***************************************************************************************************
 //Inputs
 
-InterruptIn Drehzahl_lichtschranke(p14);
-
-Timer Umlaufzeit;
-Ticker ticker_read_sensor;
 
 AnalogIn Messkanal_0 (p19);
 AnalogIn Messkanal_1 (p20);
-AnalogIn DMS_0 (p17);
+
 
 
 //***************************************************************************************************
@@ -37,18 +28,8 @@
 
 Serial pc(USBTX, USBRX);
 
-UDPSocket udp;
-Endpoint udp_dest;
 
-float MOSFET_duty_cycle = 0;
-
-volatile float  Motorspannung, Bremsenspannung , Motorstrom, Aux, Bremsenstrom, Temperatur_1, Temperatur_2, Temperatur_3 ;
-
-//int Motor_ratio = 0, curr_Motor_pwm_pulsewidth = 0,curr_MOSFET_pwm_pulsewidth = 0, Drehzahl = 0;
-
-volatile int Drehzeit_counter = 0;
-#define DREHZEIT_SIZE 3
-volatile int Drehzeit[DREHZEIT_SIZE];
+volatile float  Motorspannung, Bremsenspannung , Motorstrom, Aux, Bremsenstrom, Temperatur_1, Temperatur_2, Temperatur_3, c1v1, c1v2 ;
 
 
 //***************************************************************************************************
@@ -57,271 +38,85 @@
 void interr_read_sensors()
 {
 
-    int  Messwert_0 = 0, Messwert_1 = 0, select_0 = 0, select_1 = 0;
+    int  Messwert_0 = 0, Messwert_1 = 0;
 
     Multiplex_select_0 = 0, Multiplex_select_1 = 0;
 
     //Selection of Multiplexer states
 
-      for (int i=0; i<=4; i++) {
-    //while(i<=4) {
-        select_0 = Multiplex_select_0;
-        select_1 = Multiplex_select_1;
+    for (int i=0; i<=4; i++) {
+        //while(i<=4) {
 
-        Messwert_0 = Messkanal_0.read_u16();
-        Messwert_1 = Messkanal_1.read_u16();
-        
         Multiplex_select_0 = i&0x01;
         Multiplex_select_1 = (i>>1)&0x01;
         wait(0.001);
+        
+        Messwert_0 = Messkanal_0.read_u16();
+        Messwert_1 = Messkanal_1.read_u16();
 
         switch(i) {
             case 0: {
-                Temperatur_1 = Messwert_0;
+                Multiplex_select_0 = 0;
+                Multiplex_select_1 = 0;
+                wait(0.001);
+                Temperatur_1 = Messwert_0 ;
                 Motorspannung = Messwert_1 * 0.000515 - 0.05 ; //Gute Näherung von 2- ~23V. Dannach zu niedrig.Z-Diode
+                break;
+            }
 
+            case 1: {
+                Multiplex_select_0 = 1;
+                Multiplex_select_1 = 0;
+                wait(0.001);
+                Temperatur_2 = Messwert_0  ;
+                Motorstrom = Messwert_1 * 0.000396 - 4.15;//
+                break;
+            }
+
+            case 2: {
+                Multiplex_select_0 = 0;
+                Multiplex_select_1 = 1;
+                wait(0.001);
+                Temperatur_3 = Messwert_0;
+                Bremsenspannung = Messwert_1 * 0.000515 - 0.05;//Gute Näherung von 2- ~23V. Dannach zu niedrig.Z-Diode
                 break;
             }
 
             case 3: {
-                Aux = Messwert_0;
-                Bremsenstrom = Messwert_1; // * 0.00032 - 15.8;
-
-                break;
-            }
-            case 1: {
-                Temperatur_2 = Messwert_0;
-                Motorstrom = Messwert_1 * 0.000396 - 4.15;
+                Multiplex_select_0 = 1;
+                Multiplex_select_1 = 1;
+                wait(0.001);
+                Aux = Messwert_0 / 1629;
+                Bremsenstrom = Messwert_1; //* 0.00032 - 15.8;
                 break;
             }
 
-            case 2: {
-                Temperatur_3 = Messwert_0;
-                Bremsenspannung = Messwert_1 * 0.000515 - 0.05;//Gute Näherung von 2- ~23V. Dannach zu niedrig.Z-Diode
-
-                break;
-            }
-
-         /*   default: {
-                //i =0;
-                break; */
-            
 
         }
 
-
-       /* Multiplex_select_0 = i&0x01;
-        Multiplex_select_1 = (i>>1)&0x01;
-        wait(0.001);
-        //i++;*/
     }
 
 }
 
 
 //***************************************************************************************************
-//Control Motor rpm
-
-int rpm_control(float motor_n_cmd, float motor_n_cur)
-{
-
-    static int motor_pwm_cmd_last = 900;
-    //static float motor_n_last = 0;
-
-    if (motor_n_cmd < 1.0) {
-        Motroregler_PWM.pulsewidth_us(900);
-        motor_pwm_cmd_last = 900;
-//        motor_n_last = 0;
-        return 1;
-    }
-
-    float motor_n_dif = motor_n_cmd - motor_n_cur;
-
-    int motor_pwm_cmd = (int)(motor_pwm_cmd_last + motor_n_dif * 0.6 + 0.5); // round() ... works only for positive values
-
-    pc.printf("cmd: %7.2f, cur: %7.2f, dif: %7.2f, motor_pwm_cmd: %4d, motor_pwm_dif: %4d, DMS: %f\n\r",
-              motor_n_cmd*60, motor_n_cur*60, motor_n_dif*60, motor_pwm_cmd, motor_pwm_cmd-motor_pwm_cmd_last, ((int)DMS_0.read_u16())/65536.0*3.3);
-
-    if (motor_pwm_cmd > 1900) motor_pwm_cmd = 1900;
-    else if (motor_pwm_cmd < 1010) motor_pwm_cmd = 1005;
-
-    Motroregler_PWM.pulsewidth_us(motor_pwm_cmd);
-    motor_pwm_cmd_last = motor_pwm_cmd;
-
-    return 1;
-
-}
-
-
-//***************************************************************************************************
-//Control MOSFET pwm
-int brk_mosfet_control(float mosfet_pwm_cmd, float mosfet_pwm_cur)
-{
-
-    static int mosfet_pwm_cmd_last = 0;
-
-
-    if (mosfet_pwm_cmd < 1.0) {
-        Bremsenstrom_MOSFET.pulsewidth_us(00);
-        mosfet_pwm_cmd_last = 0;
+// MAIN:
 
-        return 1;
-    }
-
-    float mosfet_pwm_dif = mosfet_pwm_cmd - mosfet_pwm_cur;
-
-    // int mosfet_pwm_cmd = (int)(mosfet_pwm_cmd_last + mosfet_pwm_dif * 0.6 + 0.5); // round() ... works only for positive values
-
-    pc.printf("cmd: %7.2f, cur: %7.2f, dif: %7.2f, mosfet_pwm_cmd: %4d, mosfet_pwm_dif: %4d",
-              mosfet_pwm_cmd, mosfet_pwm_cur, mosfet_pwm_dif, mosfet_pwm_cmd, mosfet_pwm_cmd-mosfet_pwm_cmd_last);
-
-    if (mosfet_pwm_cmd > 20000) mosfet_pwm_cmd = 20000;
-    else if (mosfet_pwm_cmd < 0) mosfet_pwm_cmd = 0;
-
-    Bremsenstrom_MOSFET.pulsewidth_us(mosfet_pwm_cmd);
-
-    mosfet_pwm_cmd_last = mosfet_pwm_cmd;
-
-    return 1;
-}
-
-
-//***************************************************************************************************
-//Calculate rpm
-void Motor_drehzahl()
-{
-    static bool first_run = true;
-//   Umlaufzeit.stop();
-    int tmp = Umlaufzeit.read_us();
-    if (first_run) {
-        Umlaufzeit.start();
-        first_run = false;
-        return;
-    }
-    if (tmp < 1000) return;
-
-    // Cache last 3 values for averaging
-    Drehzeit[Drehzeit_counter % DREHZEIT_SIZE] = tmp;
-    ++Drehzeit_counter;
-    Umlaufzeit.reset();
-}
-
-
-//***************************************************************************************************
-// MAIN:
 int main(void)
 {
-    /*
-       // Init networking
-       EthernetInterface eth;
-       int err = eth.init();
-       if (err)
-           pc.printf("eth.init() failed. (%d)\n\r", err);
-       else
-           pc.printf("eth.init() successful.\n\r");
-       err = eth.connect();
-       if (err)
-           pc.printf("eth.connect() failed. (%d)\n\r", err);
-       else
-           pc.printf("eth.connect() successful.\n\r");
-
-       char *ip_address = eth.getIPAddress();
-       pc.printf("IP-Address: %s\n\r", ip_address);
-
-       err = udp.init();
-       if (err)
-           pc.printf("udp.init() failed. (%d)\n\r", err);
-       else
-           pc.printf("udp.init() successful.\n\r");
-
-       err = udp_dest.set_address("192.168.0.183", 1234);
-       if (err)
-           pc.printf("udp_dest.set_address() failed. (%d)\n\r", err);
-       else
-           pc.printf("udp_dest.set_address() successful.\n\r");
-     */
-
-    // Init PWM
-    Bremsenstrom_MOSFET.period(0.020);
-    Motroregler_PWM.period(0.020);
-    Motroregler_PWM.pulsewidth_us(900);
-
-    wait(1.0);
-
-    Drehzahl_lichtschranke.fall(&Motor_drehzahl);
-    ticker_read_sensor.attach(&interr_read_sensors, 1.0);
-
-    // Time counters
-    Timer timer_print, timer_pwm;
-    timer_print.start();
-    timer_pwm.start();
-
-    float motor_rpm_cmd = 0;
-    float motor_n_cur = 0;
-
-    pc.printf("Enter motor rpm to begin\n\r");
 
     while(true) {
 
-        /*
-
-                if (pc.readable()) {
-                    pc.printf("\n\r Motor rpm\n\r");
-                    pc.scanf("%f",&motor_rpm_cmd);
-                    pc.printf("%f\n\r",motor_rpm_cmd);
-
-                }
-
-                // Calculate motor_n_cur by averaging
-                int drehzeit_sum = 0;
-                for (int i=0; i != DREHZEIT_SIZE; ++i)
-                    drehzeit_sum += Drehzeit[i];
-
-                motor_n_cur = (drehzeit_sum ? (1.0e6/drehzeit_sum)*DREHZEIT_SIZE : 0.0);
-
-
-                // Set motor_n_cur to 0 if the interrupt wasn't called for a specified time
-                if (Umlaufzeit.read_ms() > 200)
-                    motor_n_cur = 0.0;
-
-
-                // Controller is only called every n ms
-                if (timer_pwm.read_ms() > 500) {
-        //            pc.printf("drehzeit_sum: %d, motor_n_cur: %f\n\r", drehzeit_sum, motor_n_cur);
-        //            pc.printf("%d  %d  %d\n\r", Drehzeit[0], Drehzeit[1], Drehzeit[2]);
-                    //timetest_0 = 1;
+        interr_read_sensors();
+      
+        
+        Multiplex_select_0 = 1, Multiplex_select_1 = 0;
+        pc.printf(" [Temperatur1, Motorspannung]; 0 %5.2f deg; 1 %5.2f V;", Temperatur_1, Motorspannung);
+        pc.printf(" [Temperatur2, Motorstrom]; 0 %5.2f deg; 1 %5.2f A;", Temperatur_2, Motorstrom);
+        pc.printf(" [Temperatur3, Bremsenspannung]; 0 %5.2f deg; 1 %5.2f V;", Temperatur_3, Bremsenspannung);
+        pc.printf(" [Aux, Bremsenstrom]; 0 %5.2f ; 1 %5.2f ;", Aux, Bremsenstrom);
+        pc.printf(" \n\r\n\r");
+        wait(1);
 
-                    timer_pwm.reset();
-                    rpm_control(motor_rpm_cmd/60.0, motor_n_cur);
-                   // timetest_0 = 0;
-                }
-                */
-
-
-        // Myled = 0;
-
-        //  wait (0.5);
-
-
-
-        if (timer_print.read_ms() > 1000) {
-            timer_print.reset();
-
-            pc.printf(" [Temperatur1, Motorspannung]; 0 %5.2f deg; 1 %5.2f V;", Temperatur_1, Motorspannung);
-            pc.printf(" [Temperatur2, Motorstrom]; 0 %5.2f deg; 1 %5.2f A;", Temperatur_2, Motorstrom);
-            pc.printf(" [Temperatur3, Bremsenspannung]; 0 %5.2f deg; 1 %5.2f V;", Temperatur_3, Bremsenspannung);
-            pc.printf(" [Aux, Bremsenstrom]; 0 %5.2f NA; 1 %5.2f A;", Aux, Bremsenstrom);
-            pc.printf(" \n\r\n\r");
-
-             float drehzahl = 1;//(Drehzeit ? 1.0e6/Drehzeit : 0.0);
-
-          /*  pc.printf("\n\rCounter: %d, Drehzahl: %f rpm (%f Hz)\n\r\n\r", Drehzeit_counter, drehzahl*60, drehzahl);
-
-            char udb_buf[] = "Tescht";
-            err = udp.sendTo(udp_dest, udb_buf, sizeof(udb_buf));
-            if (err == -1)
-                pc.printf("udp.sendTo() failed. (%d)\n\r", err); 
-        */
-}
     }
 }
\ No newline at end of file