Diff: main.cpp

Revision:

0:6622ba57fee8

diff -r 000000000000 -r 6622ba57fee8 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sun Nov 15 11:28:47 2015 +0000
@@ -0,0 +1,151 @@
+#include "mbed.h"
+
+Timeout timer;
+
+typedef enum{
+ DO,
+ RE,
+ MI,
+ FA,
+ SOL,
+ LA,
+ SI,
+ DO1,
+ }Nota;
+ 
+ Nota selected_nota = DO1;
+
+DigitalOut pwm_green(D8); // IO used by pwm_io function
+DigitalOut pwm_red(D7);
+DigitalOut pwm_blue(D2);
+
+int on_delay = 0;
+int off_delay = 0;
+
+void toggleOff_green();
+void toggleOff_blue();
+void toggleOff_red();
+
+void toggleOn_green() {
+    pwm_green = 1;
+    timer.attach_us(toggleOff_green, on_delay);
+}
+
+void toggleOn_red() {
+    pwm_red = 1;
+    timer.attach_us(toggleOff_red, on_delay);
+}
+
+void toggleOn_blue() {
+    pwm_blue = 1;
+    timer.attach_us(toggleOff_blue, on_delay);
+}
+
+void toggleOff_green() {
+    pwm_green = 0;
+    timer.attach_us(toggleOn_green, off_delay);
+}
+
+void toggleOff_red() {
+    pwm_red = 0;
+    timer.attach_us(toggleOn_red, off_delay);
+}
+
+void toggleOff_blue() {
+    pwm_blue = 0;
+    timer.attach_us(toggleOn_blue, off_delay);
+}
+
+// p_us = signal period in micro_seconds
+// dc   = signal duty-cycle (0.0 to 1.0)
+void pwm_io_green(int p_us, float dc) {
+    timer.detach();
+    if ((p_us == 0) || (dc == 0)) {
+        pwm_green = 0;
+        return;
+    }
+    if (dc >= 1) {
+        pwm_green = 1;
+        return;
+    }
+    on_delay = (int)(p_us * dc);
+    off_delay = p_us - on_delay;
+    toggleOn_green();
+}
+
+void pwm_io_red(int p_us, float dc) {
+    timer.detach();
+    if ((p_us == 0) || (dc == 0)) {
+        pwm_red = 0;
+        return;
+    }
+    if (dc >= 1) {
+        pwm_red = 1;
+        return;
+    }
+    on_delay = (int)(p_us * dc);
+    off_delay = p_us - on_delay;
+    toggleOn_red();
+}
+
+void pwm_io_blue(int p_us, float dc) {
+    timer.detach();
+    if ((p_us == 0) || (dc == 0)) {
+        pwm_blue = 0;
+        return;
+    }
+    if (dc >= 1) {
+        pwm_blue = 1;
+        return;
+    }
+    on_delay = (int)(p_us * dc);
+    off_delay = p_us - on_delay;
+    toggleOn_blue();
+}
+
+int main() {
+    
+    pwm_io_green(20, 0.50); // 20ms - 25%
+    pwm_io_blue(20, 0.50);
+    pwm_io_red(20, 0.50);
+    
+    while(1) {
+        switch (selected_nota){
+            case DO:    pwm_io_red(20, 1.00);
+                        pwm_io_green(20, 0.00); // 20ms - 25%
+                        pwm_io_blue(20, 0.00);
+                        
+                break;
+            case RE:    pwm_io_red(20, 1.00);
+                        pwm_io_green(20, 0.60); // 20ms - 25%
+                        pwm_io_blue(20, 0.00);
+                break;
+            case MI:    pwm_io_red(20, 1.00);
+                        pwm_io_green(20, 1.00); // 20ms - 25%
+                        pwm_io_blue(20, 0.00);
+                break;
+            case FA:    pwm_io_red(20, 0.00);
+                        pwm_io_green(20, 1.00); // 20ms - 25%
+                        pwm_io_blue(20, 0.00);
+                break;
+            case SOL:   pwm_io_red(20, 0.00);
+                        pwm_io_green(20, 0.00); // 20ms - 25%
+                        pwm_io_blue(20, 1.00);
+                break;
+            case LA:    pwm_io_red(20, 0.20);
+                        pwm_io_green(20, 0.00); // 20ms - 25%
+                        pwm_io_blue(20, 0.60);
+                break;
+            case SI:    pwm_io_red(20, 1.00);
+                        pwm_io_green(20, 0.00); // 20ms - 25%
+                        pwm_io_blue(20, 1.00);
+                break;
+            case DO1:   pwm_io_red(20, 1.00);
+                        pwm_io_green(20, 1.00); // 20ms - 25%
+                        pwm_io_blue(20, 1.00);
+                break;
+
+        }
+    }
+}
+ 
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