Diff: main.cpp

Revision:

6:c3db4eff9170

Parent:

5:d7b803aa9079

--- a/main.cpp	Fri Jan 05 22:37:07 2018 +0000
+++ b/main.cpp	Wed Jan 10 02:17:31 2018 +0000
@@ -18,6 +18,8 @@
 #define MISO_1 D12
 #define SCLK_1 D13
 #define VDD 3.3
+
+
 AnalogOut vOut1(A3);
 AnalogOut vOut2(A4);
 DigitalOut cs_pin1(CS1);
@@ -27,6 +29,7 @@
 MAX11410 adc2(&spi,&cs_pin2);
 //Serial pc(USBTX, USBRX,115200);
 Serial pc(USBTX, USBRX, 9600);
+Serial rpi(PA_9,PA_10,115200);
 
 void starting()
 {
@@ -34,7 +37,10 @@
 }
 
 
-
+char getNthByte(int32_t data, int ind)
+{
+    return (data>>(8*ind)) & 0x000000FF ;
+}
 
 
 void print8bitRegsAdc1(char start_reg,char end_reg)
@@ -63,7 +69,7 @@
 int main() 
 {
     int32_t channel_data[10];
-    float vdiff=0.01;
+    double vdiff=0.01;
     vOut1 = 0.5-vdiff/2;
     vOut2 = 0.5+vdiff/2;
     starting();
@@ -158,10 +164,93 @@
     //config ADC 2: repeat above
     
     
+uint32_t checksum;
+char byte2print[40];
     
-//    while(1) 
-//    {
-//       
-//    }
+    while(1) 
+    {
+        for(int n=0; n<5; n++)
+        {
+            //read each channel
+            //select channel
+            char p_ch = 2*n<<4;
+            char n_ch = 2*n+1;
+            adc1.write8bitReg(REG_MUX_CTRL0, p_ch | n_ch );
+            
+            //select data output register and begin conversion
+            adc1.write8bitReg(REG_CONV_START, (_DEST(n) | SINGLE_CONV) );
+            
+            //optional: cal Gain
+            
+            //optional: cal Offset
+            
+            //optional: store cal parameters
+            
+            //begin conversion
+            
+            //wait for interrupt
+            while(!adc1.interrupt() )
+            {
+                wait_ms(CONV_DELAY_MS);//do nothing
+            }
+            
+            //read conversion
+           channel_data[n] = adc1.read24bitsSigned(REG_DATA0+n,&int_state);
+                     
+        }
+                for(int n=0; n<5; n++)
+        {
+            //read each channel
+            //select channel
+            char p_ch = 2*n<<4;
+            char n_ch = 2*n+1;
+            adc2.write8bitReg(REG_MUX_CTRL0, p_ch | n_ch );
+            
+            //select data output register and begin conversion
+            adc2.write8bitReg(REG_CONV_START, (_DEST(n) | SINGLE_CONV) );
+            
+            //optional: cal Gain
+            
+            //optional: cal Offset
+            
+            //optional: store cal parameters
+            
+            //begin conversion
+            
+            //wait for interrupt
+            while(!adc2.interrupt() )
+            {
+                wait_ms(CONV_DELAY_MS);//do nothing
+            }
+            
+            //read conversion
+           channel_data[n+5] = adc2.read24bitsSigned(REG_DATA0+n,&int_state);  
+        }
+            
+        //            calc checksum
+        checksum=0;
+        for (int n=0; n<10; n++)
+        {
+            checksum += channel_data[n];
+        }
+    
+        for (int n=0; n<10; n++)
+        {
+            for(int m=0;m<4;m++)
+            {
+               byte2print[n*4+m] = getNthByte(channel_data[n],3-m);
+            }
+        }
+        //print data and checksum
+        
+        //            print header 0x6601
+        rpi.putc(0x66);
+        rpi.putc(0x01);
+        for (int n =0; n<40;n++)
+        {
+            rpi.putc(byte2print[n]);
+        }
+        rpi.putc( (char) checksum );
+    } //end while
 
 } //END MAIN