Projet KART
/
TESTCAN
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Dependencies: mbed
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
| main.cpp | Show annotated file Show diff for this revision Revisions of this file |
| mbed.bld | Show annotated file Show diff for this revision Revisions of this file |
--- /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