Diff: main.cpp

Revision:

3:2ca9ec946232

Parent:

2:7cc544472c34

--- a/main.cpp	Mon May 09 03:20:26 2016 +0000
+++ b/main.cpp	Sat May 14 00:49:19 2016 +0000
@@ -32,11 +32,14 @@
 }
 #endif
 
+
+
+
 #if 0
 
 //******stdio UART test******
+// PA_2-TX; PA_3-RX
 
-//Serial pc(PA_9, PA_10); // tx, rx
 DigitalOut myled(PB_0);
 
 int main()
@@ -53,7 +56,7 @@
 
 
 
-#if 1
+#if 0
 
 //******DAC test******
 
@@ -68,7 +71,7 @@
 
 int main()
 {
-    for (k=0;k<SIN1_ARRAY_SIZE;k++) {
+    for (k=0; k<SIN1_ARRAY_SIZE; k++) {
         sin_data[k]= (1.0+sin(1.0*k/SIN1_ARRAY_SIZE*2.0*PI))/2*0xFFFF;
     };
 
@@ -85,4 +88,100 @@
 
 
 }
-#endif
\ No newline at end of file
+#endif
+
+#if 1
+
+//******ADC test******
+// adapted from https://developer.mbed.org/teams/ST/code/Nucleo_analog_loop/
+// connect tested ADC input to PA_4
+
+// serial output on pins where not adc option
+Serial pc(PA_9, PA_10); // tx, rx
+
+// test signal source
+AnalogOut out(PA_4);
+
+
+// select tested ADC input
+#define ADC_IN 0
+
+
+#if ADC_IN==0
+AnalogIn in(PA_0);
+const char pin_name[]="PA_0";
+#elif ADC_IN==1
+AnalogIn in(PA_1);
+const char pin_name[]="PA_1";
+#elif ADC_IN==2
+AnalogIn in(PA_2);
+const char pin_name[]="PA_2";
+#elif ADC_IN==3
+AnalogIn in(PA_3);
+const char pin_name[]="PA_3";
+#elif ADC_IN==4
+AnalogIn in(PA_4);
+const char pin_name[]="PA_4";
+#elif ADC_IN==5
+AnalogIn in(PA_5);
+const char pin_name[]="PA_5";
+#elif ADC_IN==6
+AnalogIn in(PA_6);
+const char pin_name[]="PA_6";
+#elif ADC_IN==7
+AnalogIn in(PA_7);
+const char pin_name[]="PA_7";
+#elif ADC_IN==8
+AnalogIn in(PB_0);
+const char pin_name[]="PB_0";
+#elif ADC_IN==9
+AnalogIn in(PB_1);
+const char pin_name[]="PB_1";
+#elif ADC_IN==10
+AnalogIn in(PC_0);
+const char pin_name[]="PC_0";
+#elif ADC_IN==11
+AnalogIn in(PC_1);
+const char pin_name[]="PC_1";
+#elif ADC_IN==12
+AnalogIn in(PC_2);
+const char pin_name[]="PC_2";
+#elif ADC_IN==13
+AnalogIn in(PC_3);
+const char pin_name[]="PC_3";
+#elif ADC_IN==14
+AnalogIn in(PC_4);
+const char pin_name[]="PC_4";
+#elif ADC_IN==15
+AnalogIn in(PC_5);
+const char pin_name[]="PC_5";
+#endif
+
+
+int main()
+{
+    pc.printf("\nAnalog loop example\n");
+    pc.printf("*** Connect %s and PA_4 pins together ***\n",pin_name);
+    while(1) {
+        for (float out_value = 0.0f; out_value <= 1.0f; out_value += 0.05f) {
+            // Output value using DAC
+            out.write(out_value);
+            wait(0.1);
+            // Read ADC input
+            float in_value = in.read();
+            // Display difference between two values
+            float diff = out_value - in_value;
+            pc.printf("(out:%.4f) - (in:%.4f) = (% .4f) ", out_value, in_value, diff);
+            if (fabs(diff) > 0.03f) {
+                pc.printf("FAIL\n");
+            } else {
+                pc.printf("OK\n");
+                pc.printf("\033[1A"); // Moves cursor up of 1 line
+            }
+        }
+    }
+}
+
+
+
+#endif