Clean up midi test

midi_test.c

 //
-// sampler.c
+// midi_test.c
 // based on hello.ftdi.44.echo.c
 //
-// 115200 baud FTDI character echo, with flash string
+// 115200 baud FTDI MIDI controller
 //
 // set lfuse to 0x5E for 20 MHz xtal
 //
 // Neil Gershenfeld
 // 12/8/10
 // Erik Strand
-// 11/6/2018
+// 11/13/2018
 //
 // (c) Massachusetts Institute of Technology 2010
 // This work may be reproduced, modified, distributed,
@@ -29,7 +29,6 @@
 #define pin_test(pins,pin) (pins & pin) // test for port pin
 #define bit_test(byte,bit) (byte & (1 << bit)) // test for bit set
 #define bit_delay_time 8.4 // bit delay for 115200 with overhead
-//#define bit_delay_time 31.82 // bit delay for 31250 with overhead
 #define bit_delay() _delay_us(bit_delay_time) // RS232 bit delay
 #define half_bit_delay() _delay_us(bit_delay_time/2) // RS232 half bit delay
 #define char_delay() _delay_ms(10) // char delay
@@ -132,46 +131,7 @@ int main(void) {
 
     // 120 ticks per quarter note
     const struct MidiEvent events[] = {
-        // Stagefright
-        /*
-        {0, note_on, 40, 100},
-        {60, note_off, 40, 100},
-        {60, note_on, 40, 100},
-        {120, note_off, 40, 100},
-        {120, note_on, 40, 100},
-        {180, note_off, 40, 100},
-        {180, note_on, 42, 100},
-        {240, note_off, 42, 100},
-
-        {240, note_on, 43, 100},
-        {300, note_off, 43, 100},
-        {300, note_on, 43, 100},
-        {360, note_off, 43, 100},
-        {360, note_on, 44, 100},
-        {420, note_off, 44, 100},
-        {420, note_on, 44, 100},
-        {480, note_off, 44, 100},
-
-        //{480, note_on, 45, 100},
-        //{540, note_off, 45, 100},
-        {540, note_on, 45, 100},
-        {600, note_off, 45, 100},
-        {600, note_on, 45, 100},
-        {660, note_off, 45, 100},
-        {660, note_on, 47, 100},
-        {720, note_off, 47, 100},
-
-        {720, note_on, 48, 100},
-        {780, note_off, 48, 100},
-        {780, note_on, 48, 100},
-        {840, note_off, 48, 100},
-        {840, note_on, 51, 100},
-        {900, note_off, 51, 100},
-        {900, note_on, 51, 100},
-        {960, note_off, 51, 100},
-        */
-
-        // Bb
+        // Bb major 7
         {0, note_on, 58, 100},
         {30, note_on, 62, 100},
         {60, note_on, 65, 100},
@@ -181,34 +141,7 @@ int main(void) {
         {180, note_off, 62, 100},
         {180, note_off, 58, 100},
 
-        {240 + 0, note_on, 58, 100},
-        {240 + 30, note_on, 61, 100},
-        {240 + 60, note_on, 64, 100},
-        {240 + 90, note_on, 67, 100},
-        {240 + 180, note_off, 67, 100},
-        {240 + 180, note_off, 64, 100},
-        {240 + 180, note_off, 61, 100},
-        {240 + 180, note_off, 58, 100},
-
-        {480 + 0, note_on, 60, 100},
-        {480 + 30, note_on, 64, 100},
-        {480 + 60, note_on, 65, 100},
-        {480 + 90, note_on, 69, 100},
-        {480 + 180, note_off, 69, 100},
-        {480 + 180, note_off, 65, 100},
-        {480 + 180, note_off, 64, 100},
-        {480 + 180, note_off, 60, 100},
-
-        {720 + 0, note_on, 60, 100},
-        {720 + 30, note_on, 63, 100},
-        {720 + 60, note_on, 65, 100},
-        {720 + 90, note_on, 69, 100},
-        {720 + 180, note_off, 69, 100},
-        {720 + 180, note_off, 65, 100},
-        {720 + 180, note_off, 63, 100},
-        {720 + 180, note_off, 60, 100},
-
-        // sentinel
+        // sentinel event
         {65535, note_off, 50, 100},
     };
 
@@ -229,15 +162,6 @@ int main(void) {
                 current_tick = 0;
                 event_index = 0;
                 PORTB ^= led_pin;
-
-                /*
-                while (events[event_index].tick <= current_tick) {
-                    put_char(&serial_port, serial_pin_out, events[event_index].status);
-                    put_char(&serial_port, serial_pin_out, events[event_index].note);
-                    put_char(&serial_port, serial_pin_out, events[event_index].velocity);
-                    ++event_index;
-                }
-                */
             }
         }
     }