Organized project

1 files changed, 83 insertions, 0 deletions

diff --git a/project/Core/Src/Project/tone.c b/project/Core/Src/Project/tone.c
new file mode 100644
index 0000000..a0d1cb0
--- /dev/null
+++ b/project/Core/Src/Project/tone.c
@@ -0,0 +1,83 @@
+/*
+ * tone.c
+ *
+ *  Created on: May 14, 2022
+ *      Author: bruce
+ */
+
+
+#include "tone.h"
+
+#define CPU_SPEED (80000000.0)
+#define MAX_TONES (1)
+
+static float notes[] = {
+/* Octave -1 */			   8.18,    8.66,    9.18,    9.73,   10.30,   10.92,   11.56,   12.25,   12.98,   13.75,   14.57,   13.44,
+/* Octave  0 */           16.35,   17.32,   18.35,   19.45,   20.60,   21.83,   23.12,   24.50,   25.96,   27.50,   29.14,   30.87,
+/* Octave  1 */  	      32.70,   34.65,   36.71,   38.89,   41.20,   43.65,   46.25,   49.00,   51.91,   55.00,   58.27,   61.74,
+/* Octave  2 */			  65.41,   69.30,   73.42,   77.78,   82.41,   87.31,   92.50,   98.00,  103.83,  110.00,  116.54,  123.47,
+/* Octave  3 */			 130.81,  138.59,  146.83,  155.56,  164.81,  174.61,  185.00,  196.00,  207.65,  220.00,  233.08,  246.94,
+/* Octave  4 */			 261.63,  277.18,  293.66,  311.13,  329.63,  349.23,  369.99,  392.00,  415.30,  440.00,  466.16,  493.88,
+/* Octave  5 */          523.25,  554.37,  587.33,  622.25,  659.25,  698.46,  739.99,  783.99,  830.61,  880.00,  932.33,  987.77,
+/* Octave  6 */         1046.50, 1108.73, 1174.66, 1244.51, 1318.51, 1396.91, 1479.98, 1567.98, 1661.22, 1760.00, 1864.66, 1975.53,
+/* Octave  7 */         2093.00, 2217.46, 2349.32, 2489.02, 2637.02, 2793.83, 2959.96, 3135.96, 3322.44, 3520.00, 3729.31, 3951.07,
+/* Octave  8 */         4186.01, 4434.92, 4698.63, 4978.03, 5274.04, 5587.65, 5919.91, 6271.93, 6644.88, 7040.00, 7458.62, 7902.13,
+/* Octave  9 */         8372.02, 8869.84, 9397.26, 9956.06,10548.08,11175.30,11839.82,12543.86};
+
+typedef struct {
+	uint32_t duration;
+	uint16_t power;
+} tone_info;
+
+static uint32_t counter = 0;
+
+static tone_info tones[MAX_TONES] = {{0,0}};
+
+/* You will want to integrate this with your existing one
+   but it is here for standalone testing                 
+*/
+//void SysTick_Handler() {
+//	counter++;
+//}
+
+uint32_t get_tick_speed ();
+
+
+// Convert from hertz to ticks
+uint32_t hertz_to_systicks (float hertz) {
+	float ticks_per_second = CPU_SPEED / (SysTick->LOAD + 1);
+	if (hertz == 0)
+		return 0;
+	float duration = 1 / hertz;
+	return (uint32_t) (duration * ticks_per_second);
+}
+
+// Accessor for the counter
+uint32_t get_counter () {
+	return counter;
+}
+
+void reset_counter () {
+	counter = 0;
+}
+
+// Add a tone to the tones array
+uint8_t add_tone (uint8_t note, uint8_t velocity) {
+	tones [0] = (tone_info){hertz_to_systicks (notes [note]), velocity};
+	return 0;
+}
+
+// Remove a tone from the tones array
+uint8_t remove_tone (uint8_t note) {
+	tones [0].duration = hertz_to_systicks (notes [note]);
+	tones [0].power = 0;
+	return 0;
+}
+
+// Play any tones in the array
+void play_tones () {
+
+}
+
+
+