seiichi horie / Mbed 2 deprecated synthesizer_f746

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。

main.cpp@26:e99f71165e19, 2017-02-10 (annotated)

Committer:
shorie
Date:
Fri Feb 10 21:31:17 2017 +0000
Revision:
26:e99f71165e19
Parent:
22:dc2cbe8db9d9
Child:
28:547f19ed6f67
fulfill change

Who changed what in which revision?

UserRevisionLine numberNew contents of line
shorie 1:98ddcbbe10ba 1 #include "mbed.h"
shorie 1:98ddcbbe10ba 2
shorie 9:7f521a0b397c 3 // Note : Do not touch the "unzen dependent" part. No need to read.
shorie 9:7f521a0b397c 4 // Modify the "project dependent" part.
shorie 9:7f521a0b397c 5 // Also, Modify the SignalProcessing class.
shorie 6:486b1cb03e61 6
shorie 6:486b1cb03e61 7
shorie 6:486b1cb03e61 8 /************************** unzen dependent constants. ************************/
shorie 6:486b1cb03e61 9 #define CODEC_I2C_ADDR 0x38 // Address of the ADAU-1361A
shorie 6:486b1cb03e61 10
shorie 6:486b1cb03e61 11
shorie 6:486b1cb03e61 12 /*========================= Project Dependent Constants ======================*/
shorie 6:486b1cb03e61 13 #define BLOCKSIZE 16 // number of the sample to be processed at once.
shorie 6:486b1cb03e61 14 #define FS shimabara::Fs_48 // Fs can be Fs_32, Fs_441, Fs_48, Fs_96
shorie 6:486b1cb03e61 15
shorie 6:486b1cb03e61 16
shorie 6:486b1cb03e61 17 /************************** unzen dependent include. **************************/
shorie 0:a837eeab3ca6 18 #include "unzen.h" // audio framework include file
shorie 1:98ddcbbe10ba 19 #include "umb_adau1361a.h" // audio codec contoler include file
shorie 3:1b420050bdda 20 #include "amakusa.h" // audio signal processing class library.
shorie 8:d8d1776e865b 21 #include "ukifune.h" // UI board support routines
shorie 8:d8d1776e865b 22 #include "signal_processing.h" // Implementaion of user signal processing.
shorie 2:d5028a37f17b 23
shorie 3:1b420050bdda 24
shorie 6:486b1cb03e61 25 /************************* Unzen Dependent Global Variables *******************/
shorie 6:486b1cb03e61 26 // I2C is essential to talk with ADAU1361
shorie 8:d8d1776e865b 27 static I2C i2c(D14, D15);
shorie 6:486b1cb03e61 28 // create an audio codec contoler
shorie 8:d8d1776e865b 29 static shimabara::UMB_ADAU1361A codec(FS, i2c, CODEC_I2C_ADDR );
shorie 6:486b1cb03e61 30 // create an audio framework by singlton pattern
shorie 8:d8d1776e865b 31 static unzen::Framework audio;
shorie 6:486b1cb03e61 32 // create a pointer to the signal processing object.
shorie 8:d8d1776e865b 33 static SignalProcessing * process;
shorie 6:486b1cb03e61 34
shorie 6:486b1cb03e61 35
shorie 6:486b1cb03e61 36 /************************* Unzen Dependent Function Prototype *****************/
shorie 6:486b1cb03e61 37 // for system usage. Do not care.
shorie 6:486b1cb03e61 38 void initialize_system(void);
shorie 0:a837eeab3ca6 39
shorie 2:d5028a37f17b 40
shorie 7:e86c645231ff 41 /*========================= Main program. ====================================*/
shorie 0:a837eeab3ca6 42 int main()
shorie 0:a837eeab3ca6 43 {
shorie 11:7d8740437e6a 44 uint32_t pushing, releasing, holding;
shorie 17:728ffc633179 45
shorie 18:b9b1116f8768 46 // VFO form
shorie 18:b9b1116f8768 47 wave_form form = triangle;
shorie 22:dc2cbe8db9d9 48
shorie 22:dc2cbe8db9d9 49 // filter mode
shorie 22:dc2cbe8db9d9 50 svf_mode filter_mode = lpf;
shorie 11:7d8740437e6a 51
shorie 6:486b1cb03e61 52 // start audio. Do not touch
shorie 6:486b1cb03e61 53 initialize_system();
shorie 22:dc2cbe8db9d9 54
shorie 22:dc2cbe8db9d9 55 // set tentative frequency
shorie 22:dc2cbe8db9d9 56 process->set_vfo_frequency( 440 );
shorie 17:728ffc633179 57
shorie 22:dc2cbe8db9d9 58 // set wave from
shorie 18:b9b1116f8768 59 process->set_vfo_wave_form( form );
shorie 22:dc2cbe8db9d9 60 ukifune::turn_led_on( ukifune::led1_1 );
shorie 22:dc2cbe8db9d9 61 ukifune::turn_led_off( ukifune::led1_2 );
shorie 22:dc2cbe8db9d9 62
shorie 22:dc2cbe8db9d9 63 // set filter mode
shorie 22:dc2cbe8db9d9 64 process->set_filter_mode( filter_mode );
shorie 22:dc2cbe8db9d9 65 ukifune::turn_led_on( ukifune::led2_1 );
shorie 22:dc2cbe8db9d9 66 ukifune::turn_led_off( ukifune::led2_2 );
shorie 22:dc2cbe8db9d9 67 ukifune::turn_led_off( ukifune::led2_3 );
shorie 22:dc2cbe8db9d9 68 ukifune::turn_led_off( ukifune::led2_4 );
shorie 22:dc2cbe8db9d9 69
shorie 0:a837eeab3ca6 70
shorie 6:486b1cb03e61 71 // main loop. Signal processing is done in background.
shorie 6:486b1cb03e61 72 while(1)
shorie 6:486b1cb03e61 73 { // place your foreground program here.
shorie 12:2b121255e2d1 74
shorie 12:2b121255e2d1 75 // get volume from UI panel, then apply it to signal processing.
shorie 17:728ffc633179 76 process->set_volume( ukifune::get_volume(0) );
shorie 17:728ffc633179 77 process->set_vfo_duty_cycle( ukifune::get_volume(1) );
shorie 22:dc2cbe8db9d9 78 process->set_filter_f_factor( ukifune::get_volume(2) );
shorie 22:dc2cbe8db9d9 79 process->set_filter_Q( ukifune::get_volume(3) );
shorie 26:e99f71165e19 80 process->set_eg_attack( ukifune::get_volume(4) ); // A
shorie 26:e99f71165e19 81 process->set_eg_decay( ukifune::get_volume(5) ); // D
shorie 26:e99f71165e19 82 process->set_eg_sustain( ukifune::get_volume(6) ); // S
shorie 26:e99f71165e19 83 process->set_eg_release( ukifune::get_volume(7) ); // R
shorie 2:d5028a37f17b 84
shorie 11:7d8740437e6a 85 // sample usage of button switch detection
shorie 11:7d8740437e6a 86 ukifune::get_button_state( pushing, releasing, holding);
shorie 11:7d8740437e6a 87
shorie 11:7d8740437e6a 88 // pushing detection demo
shorie 22:dc2cbe8db9d9 89 // waveform
shorie 11:7d8740437e6a 90 if ( pushing & (1 << ukifune::swm1 ) ) // is SWM1 switch pusshing down?
shorie 18:b9b1116f8768 91 if ( form == triangle )
shorie 17:728ffc633179 92 {
shorie 18:b9b1116f8768 93 form = square;
shorie 18:b9b1116f8768 94 process->set_vfo_wave_form( form );
shorie 22:dc2cbe8db9d9 95 ukifune::turn_led_off( ukifune::led1_1 );
shorie 22:dc2cbe8db9d9 96 ukifune::turn_led_on( ukifune::led1_2 );
shorie 17:728ffc633179 97 }
shorie 17:728ffc633179 98 else
shorie 17:728ffc633179 99 {
shorie 18:b9b1116f8768 100 form = triangle;
shorie 18:b9b1116f8768 101 process->set_vfo_wave_form( form );
shorie 22:dc2cbe8db9d9 102 ukifune::turn_led_on( ukifune::led1_1 );
shorie 22:dc2cbe8db9d9 103 ukifune::turn_led_off( ukifune::led1_2 );
shorie 17:728ffc633179 104 }
shorie 17:728ffc633179 105
shorie 22:dc2cbe8db9d9 106 // filter mode
shorie 22:dc2cbe8db9d9 107 if ( pushing & (1 << ukifune::swm2 ) ) // is SWM2 switch pusshing down?
shorie 22:dc2cbe8db9d9 108 if ( filter_mode == lpf )
shorie 22:dc2cbe8db9d9 109 {
shorie 22:dc2cbe8db9d9 110 filter_mode = bpf;
shorie 22:dc2cbe8db9d9 111 process->set_filter_mode( filter_mode );
shorie 22:dc2cbe8db9d9 112 ukifune::turn_led_off( ukifune::led2_1 );
shorie 22:dc2cbe8db9d9 113 ukifune::turn_led_on( ukifune::led2_2 );
shorie 22:dc2cbe8db9d9 114 ukifune::turn_led_off( ukifune::led2_3 );
shorie 22:dc2cbe8db9d9 115 ukifune::turn_led_off( ukifune::led2_4 );
shorie 22:dc2cbe8db9d9 116 }
shorie 22:dc2cbe8db9d9 117 else if ( filter_mode == bpf )
shorie 22:dc2cbe8db9d9 118 {
shorie 22:dc2cbe8db9d9 119 filter_mode = hpf;
shorie 22:dc2cbe8db9d9 120 process->set_filter_mode( filter_mode );
shorie 22:dc2cbe8db9d9 121 ukifune::turn_led_off( ukifune::led2_1 );
shorie 22:dc2cbe8db9d9 122 ukifune::turn_led_off( ukifune::led2_2 );
shorie 22:dc2cbe8db9d9 123 ukifune::turn_led_on( ukifune::led2_3 );
shorie 22:dc2cbe8db9d9 124 ukifune::turn_led_off( ukifune::led2_4 );
shorie 22:dc2cbe8db9d9 125 }
shorie 22:dc2cbe8db9d9 126 else // hpf
shorie 22:dc2cbe8db9d9 127 {
shorie 22:dc2cbe8db9d9 128 filter_mode = lpf;
shorie 22:dc2cbe8db9d9 129 process->set_filter_mode( filter_mode );
shorie 22:dc2cbe8db9d9 130 ukifune::turn_led_on( ukifune::led2_1 );
shorie 22:dc2cbe8db9d9 131 ukifune::turn_led_off( ukifune::led2_2 );
shorie 22:dc2cbe8db9d9 132 ukifune::turn_led_off( ukifune::led2_3 );
shorie 22:dc2cbe8db9d9 133 ukifune::turn_led_off( ukifune::led2_4 );
shorie 22:dc2cbe8db9d9 134 }
shorie 11:7d8740437e6a 135
shorie 11:7d8740437e6a 136
shorie 26:e99f71165e19 137 if ( pushing & ( 1 << ukifune::swk1 ) )
shorie 26:e99f71165e19 138 process->eg_on();
shorie 26:e99f71165e19 139 else if ( releasing & ( 1 << ukifune::swk1 ) )
shorie 26:e99f71165e19 140 process->eg_off();
shorie 26:e99f71165e19 141
shorie 11:7d8740437e6a 142
shorie 6:486b1cb03e61 143 // you have to call tick() every 20mS-50mS if you need get_volume()
shorie 6:486b1cb03e61 144 wait(0.05);
shorie 6:486b1cb03e61 145 ukifune::tick();
shorie 6:486b1cb03e61 146 }
shorie 7:e86c645231ff 147 } // End of main
shorie 7:e86c645231ff 148
shorie 7:e86c645231ff 149
shorie 8:d8d1776e865b 150 /************************* Unzen Dependent Callbacks **************************/
shorie 7:e86c645231ff 151 // customer signal processing initialization call back.
shorie 7:e86c645231ff 152 void init_callback(
shorie 7:e86c645231ff 153 unsigned int block_size // block size [sample]
shorie 7:e86c645231ff 154 )
shorie 7:e86c645231ff 155 {
shorie 7:e86c645231ff 156 // place initialization code here
shorie 7:e86c645231ff 157 process = new SignalProcessing( block_size );
shorie 7:e86c645231ff 158 } // end of init_callback
shorie 7:e86c645231ff 159
shorie 7:e86c645231ff 160
shorie 7:e86c645231ff 161 // customer signal processing call back.
shorie 7:e86c645231ff 162 void process_callback(
shorie 7:e86c645231ff 163 float rx_left_buffer[], // array of the left input samples
shorie 7:e86c645231ff 164 float rx_right_buffer[], // array of the right input samples
shorie 7:e86c645231ff 165 float tx_left_buffer[], // place to write the left output samples
shorie 13:b33cb5925113 166 float tx_right_buffer[], // place to write the right output samples
shorie 7:e86c645231ff 167 unsigned int block_size // block size [sample]
shorie 7:e86c645231ff 168 )
shorie 7:e86c645231ff 169 {
shorie 7:e86c645231ff 170 // place signal processing code here
shorie 7:e86c645231ff 171 process->run( rx_left_buffer, rx_right_buffer, tx_left_buffer, tx_right_buffer, block_size );
shorie 7:e86c645231ff 172 } // End of process_callback
shorie 2:d5028a37f17b 173
shorie 6:486b1cb03e61 174
shorie 6:486b1cb03e61 175 /************************* Unzen Dependent Function implementation ************/
shorie 6:486b1cb03e61 176 void initialize_system(void)
shorie 2:d5028a37f17b 177 {
shorie 6:486b1cb03e61 178 // Set I3C clock to 100kHz
shorie 6:486b1cb03e61 179 i2c.frequency( 100000 );
shorie 6:486b1cb03e61 180
shorie 6:486b1cb03e61 181 // Configure the optional block size of signal processing. By default, it is 1[Sample]
shorie 6:486b1cb03e61 182 audio.set_block_size(BLOCKSIZE);
shorie 6:486b1cb03e61 183
shorie 6:486b1cb03e61 184 // Start UI module.
shorie 6:486b1cb03e61 185 ukifune::init( & audio );
shorie 6:486b1cb03e61 186
shorie 6:486b1cb03e61 187 // Start the ADAU1361. Audio codec starts to generate the I2C signals
shorie 6:486b1cb03e61 188 codec.start();
shorie 6:486b1cb03e61 189 // Start the audio framework on ARM processor.
shorie 6:486b1cb03e61 190 audio.start( init_callback, process_callback); // path the initializaiton and process call back to framework
shorie 6:486b1cb03e61 191
shorie 6:486b1cb03e61 192 // Setup initial analog gain
shorie 6:486b1cb03e61 193 codec.set_hp_output_gain( 0, 0 );
shorie 6:486b1cb03e61 194 codec.set_line_output_gain( 0, 0 );
shorie 6:486b1cb03e61 195 }