From 89a5bcb808711ee3cfe3b5e12a78709dc51291e6 Mon Sep 17 00:00:00 2001
From: Pacien TRAN-GIRARD
Date: Sat, 30 May 2015 21:14:19 +0200
Subject: First working drafty arduino program

---
 arduino/fht_test.ino | 68 ----------------------------------------------------
 1 file changed, 68 deletions(-)
 delete mode 100644 arduino/fht_test.ino

(limited to 'arduino/fht_test.ino')

diff --git a/arduino/fht_test.ino b/arduino/fht_test.ino
deleted file mode 100644
index 0e2f83c..0000000
--- a/arduino/fht_test.ino
+++ /dev/null
@@ -1,68 +0,0 @@
-
-// FHT Options
-#define FHT_N 256
-#define SCALE 256
-#define WINDOW 1
-#define REORDER 1
-#define LOG_OUT 1
-#define LIN_OUT 0
-#define LIN_OUT8 0
-#define OCTAVE 0
-#define OCT_NORM 0
-
-#define BINS 128
-
-#include <FHT.h>
-
-void aquire_data() {
-  noInterrupts();
-
-  for (int i = 0; i < FHT_N; i++) {
-    while(!(ADCSRA & 0x10)); // wait for adc to be ready
-    ADCSRA = 0xf5; // restart adc
-    byte m = ADCL; // fetch adc data
-    byte j = ADCH;
-    int k = (j << 8) | m; // form into an int
-    k -= 0x0200;      // form into a signed int
-    k <<= 6;          // form into a 16b signed int
-    fht_input[i] = k; // put real data into bins
-  }
-
-  interrupts();
-}
-
-void crunch_data() {
-  fht_window();
-  fht_reorder();
-  fht_run();
-  //fht_mag_octave();
-  fht_mag_log();
-}
-
-void setup() {
-
-  Serial.begin(115200);
-
-  TIMSK0 = 0;    // turn off timer0 for lower jitter
-  ADCSRA = 0xe5; // set the adc to free running mode
-  ADMUX = 0x40;  // use adc0
-  DIDR0 = 0x01;  // turn off the digital input for adc0
-
-}
-
-char buf[2550] = "";
-
-void loop() {
-  aquire_data();
-  crunch_data();
-  
-  for (int i = 0; i < BINS; i++) {
-    Serial.print(fht_log_out[i]);
-    Serial.print(' ');
-  }
-  
-  Serial.print('\n');
-  
-  delay(10000);
-}
-
-- 
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