extern removed for w function are renamed

Author: Mehmet Ozan Ünal

examples/fir/fir.ino

@@ -324,14 +324,14 @@ long calcTime;
 void setup()
 {
     Serial.begin(9600);
-    initFIR(&fir1, 46, coef);
+    init(&fir1, 46, coef);
     Serial.print("Initiliaze finished");
 
     for (int i = 0; i < 255; i++)
     {
         startTime = micros();
         float a;
-        a = filtFIR(&fir1, input[i]);
+        a = filt(&fir1, input[i]);
         calcTime = micros() - startTime;
         Serial.println(a);
         Serial.print("Total calculation time: ");

simpleDSP_Global.h

@@ -4,8 +4,8 @@
 
 struct COMPLEX
 {
-    double real;
-    double imag;
+    float real;
+    float imag;
 };
 
 #endif /* end simpleDSP_Global.h */

simpleDSP_fft.h

@@ -4,8 +4,6 @@
 
 #include "simpleDSP_Global.h"
 
-extern COMPLEX w[];
-
 void FFT(COMPLEX *Y, int N);
 void IFFT(COMPLEX *Y, int N);
 

simpleDSP_fir.h

@@ -6,7 +6,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 
-typedef struct FIR
+typedef struct
 {
     int coefLen;
     float *H;

simpleDSP_iir.h

@@ -6,12 +6,12 @@
 #include <stdio.h>
 #include <stdlib.h>
 
-struct IIR
+typedef struct
 {
-	int n;
+	int coefLen1;
 	float *H;
 	float *dly;
-};
+}IIR;
 
 void initIIR(IIR *iir, int N1, float *coef1, int n2, float *coef2);
 float filtIIR(IIR *iir, int input);