Revision 0:b4f22fa54d82, committed 2018-04-12

Comitter:

msouchet

Date:

Thu Apr 12 09:14:46 2018 +0000

Commit message:

tp conversion analogique num?rique + num?rique analogique

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Apr 12 09:14:46 2018 +0000
@@ -0,0 +1,46 @@
+#include "mbed.h"
+
+AnalogIn analog_value(A0);
+AnalogOut sortie(D7);
+Timer Chronometre;
+Ticker interruption;
+
+float amplitude;
+DigitalOut led(LED1);
+
+void signal_de_sortie() {
+        sortie = (float) (0.5+amplitude*sin(Chronometre.read()*314));
+    }
+
+int main()
+{
+    Chronometre.start();
+    float meas_r;
+    float meas_v;
+    unsigned int valeur_numerique;
+    interruption.attach(&signal_de_sortie, 0.001);   // exécute la fonction 1000 x par secondes
+    
+    printf("\nAnalogIn example\n");
+
+    while(1) {
+
+        meas_r = analog_value.read(); // Read the analog input value (value from 0.0 to 1.0 = full ADC conversion range)
+        meas_v = meas_r * 3300; // Converts value in the 0V-3.3V range
+        valeur_numerique = analog_value.read_u16();
+        
+        // Display values
+        printf("measure = %d = %f = %.0f mV\n", valeur_numerique, meas_r, meas_v);
+
+//        sortie = meas_r;
+        amplitude = meas_r / 2;
+
+        // LED is ON is the value is below 1V
+        if (meas_v < 1000) {
+            led = 1; // LED ON
+        } else {
+            led = 0; // LED OFF
+        }
+
+        wait(1.0); // 1 second
+    }
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Thu Apr 12 09:14:46 2018 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/994bdf8177cb
\ No newline at end of file