Diff: main.cpp

Revision:

0:f4b1c6a95f25

Child:

1:14e49afb1d7c

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon Apr 20 19:43:36 2020 +0000
@@ -0,0 +1,147 @@
+#include "mbed.h"
+#define reset       0b00000000          //Define masks 
+#define digital     0b00100000
+#define analog      0b01000000
+#define I2C         0b01100000
+#define stateMask   0b11100000
+#define pinMask     0b00011111
+#define pin1        0b00010000
+#define pin2        0b00001000
+#define pin3        0b00000100
+#define pin4        0b00000010
+#define pin5        0b00000001
+
+
+DigitalOut myled(LED1);
+DigitalOut DigitalStatus(LED2);         //Led for when Digital read is running
+DigitalOut AnalogStatus(LED3);          //LED for when Analog read is running
+
+DigitalIn  d1(p21);                     //Always set these pins for digital in
+DigitalIn  d2(p22);
+DigitalIn  d3(p23);
+DigitalIn  d4(p24);
+DigitalIn  d5(p25);
+
+AnalogIn   a1(p16);                     //Always set these pins for analog in 
+AnalogIn   a2(p17);
+AnalogIn   a3(p18);
+AnalogIn   a4(p19);
+AnalogIn   a5(p20);
+
+
+Serial PC(USBTX,USBRX);                                      
+Ticker tickerboi;                   //Initialize the ticker for Sampling
+
+volatile unsigned char DigitalSample;
+volatile unsigned char AnalogSample[5];
+
+volatile bool DigitalRunning;
+volatile bool AnalogRunning;
+
+volatile unsigned char command;
+volatile unsigned char state;
+
+volatile bool newDigital=false;
+volatile bool newAnalog=false;
+
+ 
+ 
+void digital_sample_func(void){         //sampling function, samples each pin specified and Ors it
+    DigitalSample = digital;
+    
+    if( (command & pin1) == pin1){
+        DigitalSample=DigitalSample + d1*pin1;
+    }
+    if( (command & pin2) == pin2){
+        DigitalSample=DigitalSample + d2*pin2;
+    }
+    if( (command & pin3) == pin3){
+        DigitalSample=DigitalSample + d3*pin3;
+    }
+    if( (command & pin4) == pin4){
+        DigitalSample=DigitalSample + d4*pin4;
+    }
+    if( (command & pin5) == pin5){
+        DigitalSample=DigitalSample + d5*pin5;
+    }
+    newDigital=true;
+}
+
+
+void analog_sample_func(void){
+    for(int i=0; i<5; i++){
+        AnalogSample[i]=0;   
+    }
+    if( (command & pin1) == pin1){
+        AnalogSample[0]=a1*255;
+    }
+    if( (command & pin2) == pin2){
+        AnalogSample[1]=a2*255;
+    }
+    if( (command & pin3) == pin3){
+        AnalogSample[2]=a3*255;
+    }
+    if( (command & pin4) == pin4){
+        AnalogSample[3]=a4*255;
+    }
+    if( (command & pin5) == pin5){
+        AnalogSample[4]=a5*255;
+    }
+    newAnalog=true;    
+    
+}
+
+
+void SerialInterrupt(void){
+       command=PC.getc();
+       state= command & stateMask;
+       switch(state){
+           case reset:
+            tickerboi.detach();                 //detach Ticker
+            DigitalRunning=false;                //turn off status LED
+            AnalogRunning=false;
+            break;
+                
+           case digital:
+            tickerboi.attach(&digital_sample_func, .1);  //Ticker will call digital read every 100 ms  
+            DigitalRunning=true;               // turn on status LED
+            break;        
+            
+           case analog:
+            tickerboi.attach(&analog_sample_func, .01);        //Ticker will call analog read every 10ms
+            AnalogRunning=true;    
+        }  
+}
+
+int main() {
+     PC.attach(&SerialInterrupt, Serial::RxIrq);
+    
+    
+    while(1) {
+        
+        DigitalStatus=DigitalRunning;               //Indicate DigitalRead is running
+        AnalogStatus=AnalogRunning;                 //Indicate analogRead is running
+        
+        if(newDigital){                            //if digital sampling was run
+            PC.putc(DigitalSample);
+            newDigital=false;
+        }
+        
+        if(newAnalog){                         //if analog sampling was run             
+            PC.putc(analog);                   //First bit is 0b01000000
+            for(int i=0; i<5; i++){            //Send all of the analog bits
+                PC.putc(AnalogSample[i]);   
+            }
+            PC.putc(command);                     //Last bit is command from PC
+            newAnalog=false;
+        }
+        
+        myled = 1;                             //indicate main loop is running
+        wait(0.2);
+        myled = 0;
+        wait(0.2);  
+    }
+}
+
+
+