Diff: I2CSlaveComm.cpp

Revision:

3:29925a0f88da

Parent:

2:d0308b3aaf69

Child:

4:5f2b51fa096a

diff -r d0308b3aaf69 -r 29925a0f88da I2CSlaveComm.cpp
--- a/I2CSlaveComm.cpp	Wed Oct 31 16:08:34 2018 +0000
+++ b/I2CSlaveComm.cpp	Thu Nov 01 17:43:10 2018 +0000
@@ -4,8 +4,33 @@
 I2CSlaveCustom slave(D4, D7);
 I2CSlaveCustom slave2(D14, D15); //use another I2C to emulate the adc
 
+Ticker command_ticker;
+Ticker flow_ticker;
+
+Serial          PcUart(USBTX, USBRX);
+
+int modeswitch = 1;
+int saveswitch;
+int counter = 0;
+
+int I2Cswitch = 1;
+
+float risetime = 40;
+float falltime = 20;
+float plateautime = 10;
+
+float steptime = 5;
+
+float highvalue = 100;
+float lowvalue = 20;
+float stepvalue = steptime * (highvalue - lowvalue) / risetime;
+
+float tension = lowvalue;
+
 unsigned char PointOnAddress = 0;
 
+char buffer[64];
+
 unsigned char ADCValue[2];
 #pragma pack(push,1)
 struct SmartSensorStruct {
@@ -42,9 +67,9 @@
 
 void setTension(double value)
 {
-    int tension = (int)(value*100); 
+    int tensionset = (int)(value*100); 
     
-    int adc = ((1000 * (tension - stSensor.c3)) / stSensor.c2) - stSensor.c1;
+    int adc = ((1000 * (tensionset - stSensor.c3)) / stSensor.c2) - stSensor.c1;
     adc = adc / 4; //into low read of the ST
     ADCValue[0] = (adc >> 8)&0xFF;
     ADCValue[1] = (adc)&0xFF;
@@ -153,4 +178,156 @@
     SaveRamBuffer(0, (char*)&stSensor, sizeof(SmartSensorStruct_packed));
 
     slave2.address(0x90);
+}
+
+void cycle() 
+{
+    if(modeswitch == 3 )
+    {
+        if(saveswitch == 2)
+        {
+            printf("Tension fall begins\n");
+            modeswitch = saveswitch;
+        }
+        else if (saveswitch == 1)
+        {
+            printf("Tension rise begins\n");
+            modeswitch = saveswitch; 
+        }
+        counter = 0;
+    }
+    else
+    {
+        if(modeswitch == 1)
+        {
+            printf("High plateau begins\n");
+            stepvalue = steptime * (lowvalue - highvalue) / falltime;
+            saveswitch = 2;
+            modeswitch = 3;
+        }
+        else if (modeswitch == 2)
+        {
+            printf("Low plateau begins\n");
+            stepvalue = steptime * (highvalue - lowvalue) / risetime;
+            saveswitch = 1;
+            modeswitch = 3;
+        }
+    }
+}
+
+void commandselect()
+{
+    if(PcUart.readable())
+    {
+        char command = PcUart.getc();
+        switch(command)
+        { 
+            case 'w':
+            {
+                I2Cswitch = 0;
+                flow_ticker.detach();
+                
+                printf("Setting parameters\n");
+                
+                printf("Enter tension high value in kPa\n");
+                scanf("%s", buffer);
+                highvalue = atoi(buffer);
+                
+                printf("Enter tension low value in kPa\n");
+                scanf("%s", buffer);
+                lowvalue = atoi(buffer);
+                
+                printf("Enter tension rise time in seconds\n");
+                scanf("%s", buffer);
+                risetime = atoi(buffer);
+                
+                printf("Enter tension fall time in seconds\n");
+                scanf("%s", buffer);
+                falltime = atoi(buffer);
+                
+                printf("Enter plateau time in seconds\n");
+                scanf("%s", buffer);
+                plateautime = atoi(buffer);
+                
+                printf("Enter step time in seconds\n");
+                scanf("%s", buffer);
+                steptime = atoi(buffer);
+                
+                printf("Resetting cycle\n");
+                counter = 0;
+                tension = lowvalue;
+                stepvalue = steptime * (highvalue - lowvalue) / risetime;
+                modeswitch = 1;
+                
+                flow_ticker.attach(&flow, steptime);
+                I2Cswitch = 1;
+                break;
+            }
+            
+            case 'i':
+            {
+                printf("List of parameter values\n");
+                printf("High tension: %df kPa\n", (int)highvalue);
+                printf("Low tension: %d kPa\n", (int)lowvalue);
+                printf("Cycle rise time: %d seconds\n", (int)risetime);
+                printf("Cycle fall time: %d seconds\n", (int)falltime);
+                printf("Cycle plateau time: %d seconds\n", (int)plateautime);
+                printf("Step time: %d seconds\n", (int)steptime);
+                if(modeswitch == 1)
+                    printf("Cycle currently in rising phase\n");
+                else if(modeswitch == 2)
+                    printf("Cycle currently in falling phase\n");
+                else if(modeswitch == 3)
+                    printf("Cycle currently in plateau phase\n");
+                break;
+            }      
+        }
+    }
+}
+
+void flow()
+{
+    if(modeswitch == 3)
+    {
+        counter += steptime;
+        
+        if(counter >= plateautime)
+            cycle();
+    }
+    else
+    {
+        tension += stepvalue;
+        setTension(tension);
+        
+        if(modeswitch == 1)
+            printf("Rising, tension = %f\n", tension);
+        if(modeswitch == 2)
+            printf("Falling, tension = %f\n", tension);
+               
+        if(modeswitch == 1 && tension >= highvalue - 0.0001f)
+        {
+            tension = highvalue;
+            cycle();
+        }
+        else if(modeswitch == 2 && tension <= lowvalue + 0.0001f)
+        {
+            tension = lowvalue;
+            cycle();
+        }
+    }
+}
+
+int main()
+{
+    printf("Initiating\n");
+    InitI2CSlaveComm();
+    flow_ticker.attach(&flow, steptime);
+    command_ticker.attach(&commandselect, 1);
+    while(1)
+    {
+        if(I2Cswitch == 1)
+        {
+            I2CSlaveProcess();
+        }
+    }
 }
\ No newline at end of file