Revision 1:3454f8f520e4, committed 2020-02-25

Comitter:

joliver02

Date:

Tue Feb 25 17:10:24 2020 +0000

Parent:

0:b7c05aca6d5f

Commit message:

Practica 2 DSP v1

Changed in this revision

diff -r b7c05aca6d5f -r 3454f8f520e4 main.cpp
--- a/main.cpp	Wed Oct 30 17:32:19 2019 +0000
+++ b/main.cpp	Tue Feb 25 17:10:24 2020 +0000
@@ -36,28 +36,28 @@
 const int32_t   PHI     =   -256;                   ///< Phase shift
 
 mydsc_ring_buffer_t rb;         ///< circular queue or ring buffer.
-Ticker              ticker;
+Ticker              ticker;                             //Variable ticker
 
 void ticker_isr() {
-    static unsigned int    k    =   0;
+    static unsigned int    k    =   0;                  //Dato no accesado desde otra funcion
 
-    analog_out_1 = ( 1.0 + sin(2*PI*k*H)) / 2.0;
-    mydsc_ring_buffer_push(&rb, analog_in);
-    analog_out_2 = *mydsc_ring_buffer_sample(&rb, PHI);
+    analog_out_1 = ( 1.0 + sin(2*PI*k*H)) / 2.0;        //Genera su salida analogica. Salida senoidal
+    mydsc_ring_buffer_push(&rb, analog_in);             //Apuntador RB e inserta el balor en PHI
+    analog_out_2 = *mydsc_ring_buffer_sample(&rb, PHI); //Emular un arreglo, lee el valor con un apuntador
     k++;
 }   
 
 int main() {
     // Setup
-    Serial tty(USBTX, USBRX);
+    Serial tty(USBTX, USBRX);                           //Clase para el puerto Serial
     
-    mydsc_ring_buffer_init(&rb, SIZE);
+    mydsc_ring_buffer_init(&rb, SIZE);                  //Se inicializa y se da el tamaño de memoria
     ticker.attach(&ticker_isr, H);
-    tty.baud(115200);
+    tty.baud(115200);                                   //Velocidad a 115200 Baudios para el plotter
     
     while(1) { 
         // Loop
-        tty.printf("%f\t%f\n", (*mydsc_ring_buffer_sample(&rb, 0)),(*mydsc_ring_buffer_sample(&rb, PHI)));
+        tty.printf("%f\t%f\n", (*mydsc_ring_buffer_sample(&rb, 0)),(*mydsc_ring_buffer_sample(&rb, PHI)));      //
     }
 }
 

diff -r b7c05aca6d5f -r 3454f8f520e4 mydsc_sampling_example.lib
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mydsc_sampling_example.lib	Tue Feb 25 17:10:24 2020 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/users/ghsalazar/code/mydsc_sampling_example/#b7c05aca6d5f