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@6:486b1cb03e61, 2017-01-27 (annotated)

Committer:
shorie
Date:
Fri Jan 27 01:53:43 2017 +0000
Revision:
6:486b1cb03e61
Parent:
3:1b420050bdda
Child:
7:e86c645231ff
Skeleton build successful. Need to test.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
shorie 1:98ddcbbe10ba 1 #include "mbed.h"
shorie 1:98ddcbbe10ba 2
shorie 6:486b1cb03e61 3 // Note : Do not touch the "unzen dependent" part.
shorie 6:486b1cb03e61 4 // Configure the "project dependent" part.
shorie 6:486b1cb03e61 5
shorie 6:486b1cb03e61 6
shorie 6:486b1cb03e61 7 /************************** unzen dependent constants. ************************/
shorie 6:486b1cb03e61 8 #define CODEC_I2C_ADDR 0x38 // Address of the ADAU-1361A
shorie 6:486b1cb03e61 9
shorie 6:486b1cb03e61 10
shorie 6:486b1cb03e61 11 /*========================= Project Dependent Constants ======================*/
shorie 6:486b1cb03e61 12 #define BLOCKSIZE 16 // number of the sample to be processed at once.
shorie 6:486b1cb03e61 13 #define FS shimabara::Fs_48 // Fs can be Fs_32, Fs_441, Fs_48, Fs_96
shorie 6:486b1cb03e61 14
shorie 6:486b1cb03e61 15
shorie 6:486b1cb03e61 16 /************************** unzen dependent include. **************************/
shorie 0:a837eeab3ca6 17 #include "unzen.h" // audio framework include file
shorie 1:98ddcbbe10ba 18 #include "umb_adau1361a.h" // audio codec contoler include file
shorie 3:1b420050bdda 19 #include "amakusa.h" // audio signal processing class library.
shorie 3:1b420050bdda 20 #include "ukifune.h" // UI board support routines
shorie 3:1b420050bdda 21
shorie 6:486b1cb03e61 22
shorie 6:486b1cb03e61 23 /*========================= project dependent include. =======================*/
shorie 6:486b1cb03e61 24 #include "signal_processing.h"
shorie 2:d5028a37f17b 25
shorie 3:1b420050bdda 26
shorie 6:486b1cb03e61 27 /************************* Unzen Dependent Global Variables *******************/
shorie 6:486b1cb03e61 28 // I2C is essential to talk with ADAU1361
shorie 6:486b1cb03e61 29 I2C i2c(D14, D15);
shorie 6:486b1cb03e61 30 // create an audio codec contoler
shorie 6:486b1cb03e61 31 shimabara::UMB_ADAU1361A codec(FS, i2c, CODEC_I2C_ADDR );
shorie 6:486b1cb03e61 32 // create an audio framework by singlton pattern
shorie 6:486b1cb03e61 33 unzen::Framework audio;
shorie 6:486b1cb03e61 34
shorie 6:486b1cb03e61 35
shorie 6:486b1cb03e61 36 /*========================= project dependent Global Variable. ===============*/
shorie 6:486b1cb03e61 37 // create a pointer to the signal processing object.
shorie 6:486b1cb03e61 38 SignalProcessing * process;
shorie 6:486b1cb03e61 39
shorie 6:486b1cb03e61 40
shorie 6:486b1cb03e61 41
shorie 6:486b1cb03e61 42 /************************* Unzen Dependent Function Prototype *****************/
shorie 6:486b1cb03e61 43 // for system usage. Do not care.
shorie 6:486b1cb03e61 44 void initialize_system(void);
shorie 0:a837eeab3ca6 45
shorie 2:d5028a37f17b 46
shorie 6:486b1cb03e61 47 /*========================= project dependent Signal Processing. ============*/
shorie 0:a837eeab3ca6 48 // customer signal processing initialization call back.
shorie 0:a837eeab3ca6 49 void init_callback(
shorie 0:a837eeab3ca6 50 unsigned int block_size // block size [sample]
shorie 0:a837eeab3ca6 51 )
shorie 0:a837eeab3ca6 52 {
shorie 0:a837eeab3ca6 53 // place initialization code here
shorie 6:486b1cb03e61 54 process = new SignalProcessing( block_size );
shorie 0:a837eeab3ca6 55 }
shorie 0:a837eeab3ca6 56
shorie 0:a837eeab3ca6 57 // customer signal processing call back.
shorie 0:a837eeab3ca6 58 void process_callback(
shorie 0:a837eeab3ca6 59 float rx_left_buffer[], // array of the left input samples
shorie 0:a837eeab3ca6 60 float rx_right_buffer[], // array of the right input samples
shorie 0:a837eeab3ca6 61 float tx_left_buffer[], // place to write the left output samples
shorie 0:a837eeab3ca6 62 float tx_right_buffer[], // place to write the left output samples
shorie 0:a837eeab3ca6 63 unsigned int block_size // block size [sample]
shorie 0:a837eeab3ca6 64 )
shorie 0:a837eeab3ca6 65 {
shorie 6:486b1cb03e61 66 // place signal processing code here
shorie 6:486b1cb03e61 67 process->run( rx_left_buffer, rx_right_buffer, tx_left_buffer, tx_right_buffer, block_size );
shorie 0:a837eeab3ca6 68 }
shorie 0:a837eeab3ca6 69
shorie 6:486b1cb03e61 70
shorie 0:a837eeab3ca6 71
shorie 0:a837eeab3ca6 72 int main()
shorie 0:a837eeab3ca6 73 {
shorie 6:486b1cb03e61 74 // start audio. Do not touch
shorie 6:486b1cb03e61 75 initialize_system();
shorie 0:a837eeab3ca6 76
shorie 6:486b1cb03e61 77 // main loop. Signal processing is done in background.
shorie 6:486b1cb03e61 78 while(1)
shorie 6:486b1cb03e61 79 { // place your foreground program here.
shorie 6:486b1cb03e61 80 process->set_volume( ukifune::get_volume(0) );
shorie 2:d5028a37f17b 81
shorie 6:486b1cb03e61 82 // you have to call tick() every 20mS-50mS if you need get_volume()
shorie 6:486b1cb03e61 83 wait(0.05);
shorie 6:486b1cb03e61 84 ukifune::tick();
shorie 6:486b1cb03e61 85 }
shorie 2:d5028a37f17b 86 }
shorie 2:d5028a37f17b 87
shorie 6:486b1cb03e61 88
shorie 6:486b1cb03e61 89 /************************* Unzen Dependent Function implementation ************/
shorie 6:486b1cb03e61 90 void initialize_system(void)
shorie 2:d5028a37f17b 91 {
shorie 6:486b1cb03e61 92 // Set I3C clock to 100kHz
shorie 6:486b1cb03e61 93 i2c.frequency( 100000 );
shorie 6:486b1cb03e61 94
shorie 6:486b1cb03e61 95 // Configure the optional block size of signal processing. By default, it is 1[Sample]
shorie 6:486b1cb03e61 96 audio.set_block_size(BLOCKSIZE);
shorie 6:486b1cb03e61 97
shorie 6:486b1cb03e61 98 // Start UI module.
shorie 6:486b1cb03e61 99 ukifune::init( & audio );
shorie 6:486b1cb03e61 100
shorie 6:486b1cb03e61 101 // Start the ADAU1361. Audio codec starts to generate the I2C signals
shorie 6:486b1cb03e61 102 codec.start();
shorie 6:486b1cb03e61 103 // Start the audio framework on ARM processor.
shorie 6:486b1cb03e61 104 audio.start( init_callback, process_callback); // path the initializaiton and process call back to framework
shorie 6:486b1cb03e61 105
shorie 6:486b1cb03e61 106 // Setup initial analog gain
shorie 6:486b1cb03e61 107 codec.set_hp_output_gain( 0, 0 );
shorie 6:486b1cb03e61 108 codec.set_line_output_gain( 0, 0 );
shorie 6:486b1cb03e61 109 }