Diff: CurrentMonitor/CurrentMonitor.cpp

Revision:

10:db13782f05d9

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/CurrentMonitor/CurrentMonitor.cpp	Sun Oct 19 22:46:46 2014 +0000
@@ -0,0 +1,68 @@
+#include "mbed.h"
+#include "CurrentMonitor.h"
+#include "Store_RTC.h"
+
+#define MSEC_HRS 2.77778e-7
+#define DC_DC_ISENSE_OFFSET_V 0.5
+#define DC_DC_ISENSE_INCREMENT 0.133
+
+#define BAT_ISENSE_OFFSET_V 1.65
+#define BAT_ISENSE_INCREMENT 0.5297
+
+CANBuffer *tx_Current_Buffer;
+
+double BATmA_Hr;
+float DCA_msec,BATA_msec;
+float Bat_I_Ratio,DC_I_Ratio;
+
+AnalogIn BatISense(p19);
+AnalogIn DCSense(p20);
+
+RTCStore store;
+
+union converter{
+    float data;
+    char ch[4];    
+} convert;
+
+CurrentMonitor::CurrentMonitor(CANBuffer *can){
+    tx_Current_Buffer = can;
+}
+
+void update_current(const void *arg){
+    char data[4] = {0};
+    while(1){
+        float bat_reading = store.read(1);
+        convert.data = bat_reading;
+        
+        data[0] = convert.ch[0];
+        data[1] = convert.ch[1];
+        data[2] = convert.ch[2];
+        data[3] = convert.ch[3];
+        
+        CANMessage txMessage(TX_CURRENT_ID, data, 4);
+        tx_Current_Buffer->txWrite(txMessage);
+        
+        Thread::wait(100);          //10 Hz update
+    }
+}
+
+void monitor_current(const void *arg){
+    while(1){
+        Bat_I_Ratio=BatISense.read();
+        BATA_msec=(((Bat_I_Ratio*3.3) - BAT_ISENSE_OFFSET_V)/BAT_ISENSE_INCREMENT);
+        BATmA_Hr+=(BATA_msec*MSEC_HRS);
+        store.write(BATmA_Hr,0);
+                
+        DC_I_Ratio=DCSense.read(); 
+        DCA_msec=(((DC_I_Ratio*3.3) - DC_DC_ISENSE_OFFSET_V)/DC_DC_ISENSE_INCREMENT);
+        store.write(DCA_msec,1);
+        
+        Thread::wait(1);            //1 Khz coulomb counter   
+    }   
+}
+
+void CurrentMonitor::start_update(){
+    Thread monitor_thread(monitor_current);
+    Thread update_thread(update_current);
+}
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