seiichi horie
Synthesizer based on the Unzen / Nucleo F746ZG
Dependencies: amakusa mbed-dsp mbed shimabara ukifune unzen_nucleo_f746
Fork of
skeleton_unzen_nucleo_f746
by 
seiichi horie
雲仙フレームワークのテストとして作っているプロジェクトです。中身はどんどん変っていきます。 説明はDSP空挺団の「シンセサイザー」カテゴリーを参照してください。初回は「ドッグフードを食べる」です。
Diff: main.cpp
- Revision:
- 22:dc2cbe8db9d9
- Parent:
- 18:b9b1116f8768
- Child:
- 26:e99f71165e19
--- a/main.cpp Sat Feb 04 15:05:44 2017 +0000
+++ b/main.cpp Sun Feb 05 06:16:49 2017 +0000
@@ -45,14 +45,28 @@
// VFO form
wave_form form = triangle;
+
+ // filter mode
+ svf_mode filter_mode = lpf;
// start audio. Do not touch
initialize_system();
+
+ // set tentative frequency
+ process->set_vfo_frequency( 440 );
- process->set_vfo_frequency( 440 );
+ // set wave from
process->set_vfo_wave_form( form );
- ukifune::turn_led_off( ukifune::led1_1 );
- ukifune::turn_led_on( ukifune::led1_2 );
+ ukifune::turn_led_on( ukifune::led1_1 );
+ ukifune::turn_led_off( ukifune::led1_2 );
+
+ // set filter mode
+ process->set_filter_mode( filter_mode );
+ ukifune::turn_led_on( ukifune::led2_1 );
+ ukifune::turn_led_off( ukifune::led2_2 );
+ ukifune::turn_led_off( ukifune::led2_3 );
+ ukifune::turn_led_off( ukifune::led2_4 );
+
// main loop. Signal processing is done in background.
while(1)
@@ -61,27 +75,59 @@
// get volume from UI panel, then apply it to signal processing.
process->set_volume( ukifune::get_volume(0) );
process->set_vfo_duty_cycle( ukifune::get_volume(1) );
+ process->set_filter_f_factor( ukifune::get_volume(2) );
+ process->set_filter_Q( ukifune::get_volume(3) );
// sample usage of button switch detection
ukifune::get_button_state( pushing, releasing, holding);
// pushing detection demo
+ // waveform
if ( pushing & (1 << ukifune::swm1 ) ) // is SWM1 switch pusshing down?
if ( form == triangle )
{
form = square;
process->set_vfo_wave_form( form );
- ukifune::turn_led_on( ukifune::led1_1 );
- ukifune::turn_led_off( ukifune::led1_2 );
+ ukifune::turn_led_off( ukifune::led1_1 );
+ ukifune::turn_led_on( ukifune::led1_2 );
}
else
{
form = triangle;
process->set_vfo_wave_form( form );
- ukifune::turn_led_off( ukifune::led1_1 );
- ukifune::turn_led_on( ukifune::led1_2 );
+ ukifune::turn_led_on( ukifune::led1_1 );
+ ukifune::turn_led_off( ukifune::led1_2 );
}
+ // filter mode
+ if ( pushing & (1 << ukifune::swm2 ) ) // is SWM2 switch pusshing down?
+ if ( filter_mode == lpf )
+ {
+ filter_mode = bpf;
+ process->set_filter_mode( filter_mode );
+ ukifune::turn_led_off( ukifune::led2_1 );
+ ukifune::turn_led_on( ukifune::led2_2 );
+ ukifune::turn_led_off( ukifune::led2_3 );
+ ukifune::turn_led_off( ukifune::led2_4 );
+ }
+ else if ( filter_mode == bpf )
+ {
+ filter_mode = hpf;
+ process->set_filter_mode( filter_mode );
+ ukifune::turn_led_off( ukifune::led2_1 );
+ ukifune::turn_led_off( ukifune::led2_2 );
+ ukifune::turn_led_on( ukifune::led2_3 );
+ ukifune::turn_led_off( ukifune::led2_4 );
+ }
+ else // hpf
+ {
+ filter_mode = lpf;
+ process->set_filter_mode( filter_mode );
+ ukifune::turn_led_on( ukifune::led2_1 );
+ ukifune::turn_led_off( ukifune::led2_2 );
+ ukifune::turn_led_off( ukifune::led2_3 );
+ ukifune::turn_led_off( ukifune::led2_4 );
+ }