Diff: main.cpp

Revision:

0:08d7440bdf68

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Oct 15 21:13:21 2020 +0000
@@ -0,0 +1,49 @@
+
+// #################### DAC F302 #################### 
+
+#include "mbed.h"
+
+AnalogIn Ain(A0); // Entrada sinal de áudio
+
+AnalogOut Aout(A2); // Reconstrução -sinal de áudio
+
+Ticker snyq_tick;
+
+
+void snyq_task(void);
+
+
+float data_in, data_out;
+
+int main()
+{
+    snyq_tick.attach_us(&snyq_task,25); // tempo de amostragem do sinal 1/25us
+}
+// Funcção Amostragem do Sinal - DAC
+void snyq_task(void)
+{
+    data_in=Ain;
+    data_out=data_in;
+    Aout=data_out;
+    
+}
+
+//float LPF(float LPF_in)
+//{
+//float a[4]= {1,2,1};
+
+//float b[4]= {1,2,1};
+//static float LPF_out;
+//static float x[4], y[4];
+//x[3] = x[2];
+//x[2] = x[1];
+//x[1] = x[0]; // move x values by one sample
+//y[3] = y[2];
+//y[2] = y[1];
+//y[1] = y[0]; // move y values by one sample
+// x[0] = LPF_in; // new value for x[0]
+// y[0] = (b[0]*x[0]) + (b[1]*x[1]) + (b[2]*x[2]) + (b[3]*x[3]) + (a[1]*y[1]) + (a[2]*y[2]) + (a[3]*y[3]);
+
+//LPF_out = y[0];
+//return LPF_out; // output filtered value
+//}
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