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@8:d8d1776e865b, 2017-01-27 (annotated)

Committer:
shorie
Date:
Fri Jan 27 02:08:53 2017 +0000
Revision:
8:d8d1776e865b
Parent:
7:e86c645231ff
Child:
9:7f521a0b397c
Refactored

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 8:d8d1776e865b 20 #include "ukifune.h" // UI board support routines
shorie 8:d8d1776e865b 21 #include "signal_processing.h" // Implementaion of user signal processing.
shorie 2:d5028a37f17b 22
shorie 3:1b420050bdda 23
shorie 6:486b1cb03e61 24 /************************* Unzen Dependent Global Variables *******************/
shorie 6:486b1cb03e61 25 // I2C is essential to talk with ADAU1361
shorie 8:d8d1776e865b 26 static I2C i2c(D14, D15);
shorie 6:486b1cb03e61 27 // create an audio codec contoler
shorie 8:d8d1776e865b 28 static shimabara::UMB_ADAU1361A codec(FS, i2c, CODEC_I2C_ADDR );
shorie 6:486b1cb03e61 29 // create an audio framework by singlton pattern
shorie 8:d8d1776e865b 30 static unzen::Framework audio;
shorie 6:486b1cb03e61 31 // create a pointer to the signal processing object.
shorie 8:d8d1776e865b 32 static SignalProcessing * process;
shorie 6:486b1cb03e61 33
shorie 6:486b1cb03e61 34
shorie 6:486b1cb03e61 35 /************************* Unzen Dependent Function Prototype *****************/
shorie 6:486b1cb03e61 36 // for system usage. Do not care.
shorie 6:486b1cb03e61 37 void initialize_system(void);
shorie 0:a837eeab3ca6 38
shorie 2:d5028a37f17b 39
shorie 7:e86c645231ff 40 /*========================= Main program. ====================================*/
shorie 0:a837eeab3ca6 41 int main()
shorie 0:a837eeab3ca6 42 {
shorie 6:486b1cb03e61 43 // start audio. Do not touch
shorie 6:486b1cb03e61 44 initialize_system();
shorie 0:a837eeab3ca6 45
shorie 6:486b1cb03e61 46 // main loop. Signal processing is done in background.
shorie 6:486b1cb03e61 47 while(1)
shorie 6:486b1cb03e61 48 { // place your foreground program here.
shorie 6:486b1cb03e61 49 process->set_volume( ukifune::get_volume(0) );
shorie 2:d5028a37f17b 50
shorie 6:486b1cb03e61 51 // you have to call tick() every 20mS-50mS if you need get_volume()
shorie 6:486b1cb03e61 52 wait(0.05);
shorie 6:486b1cb03e61 53 ukifune::tick();
shorie 6:486b1cb03e61 54 }
shorie 7:e86c645231ff 55 } // End of main
shorie 7:e86c645231ff 56
shorie 7:e86c645231ff 57
shorie 8:d8d1776e865b 58 /************************* Unzen Dependent Callbacks **************************/
shorie 7:e86c645231ff 59 // customer signal processing initialization call back.
shorie 7:e86c645231ff 60 void init_callback(
shorie 7:e86c645231ff 61 unsigned int block_size // block size [sample]
shorie 7:e86c645231ff 62 )
shorie 7:e86c645231ff 63 {
shorie 7:e86c645231ff 64 // place initialization code here
shorie 7:e86c645231ff 65 process = new SignalProcessing( block_size );
shorie 7:e86c645231ff 66 } // end of init_callback
shorie 7:e86c645231ff 67
shorie 7:e86c645231ff 68
shorie 7:e86c645231ff 69 // customer signal processing call back.
shorie 7:e86c645231ff 70 void process_callback(
shorie 7:e86c645231ff 71 float rx_left_buffer[], // array of the left input samples
shorie 7:e86c645231ff 72 float rx_right_buffer[], // array of the right input samples
shorie 7:e86c645231ff 73 float tx_left_buffer[], // place to write the left output samples
shorie 7:e86c645231ff 74 float tx_right_buffer[], // place to write the left output samples
shorie 7:e86c645231ff 75 unsigned int block_size // block size [sample]
shorie 7:e86c645231ff 76 )
shorie 7:e86c645231ff 77 {
shorie 7:e86c645231ff 78 // place signal processing code here
shorie 7:e86c645231ff 79 process->run( rx_left_buffer, rx_right_buffer, tx_left_buffer, tx_right_buffer, block_size );
shorie 7:e86c645231ff 80 } // End of process_callback
shorie 2:d5028a37f17b 81
shorie 6:486b1cb03e61 82
shorie 6:486b1cb03e61 83 /************************* Unzen Dependent Function implementation ************/
shorie 6:486b1cb03e61 84 void initialize_system(void)
shorie 2:d5028a37f17b 85 {
shorie 6:486b1cb03e61 86 // Set I3C clock to 100kHz
shorie 6:486b1cb03e61 87 i2c.frequency( 100000 );
shorie 6:486b1cb03e61 88
shorie 6:486b1cb03e61 89 // Configure the optional block size of signal processing. By default, it is 1[Sample]
shorie 6:486b1cb03e61 90 audio.set_block_size(BLOCKSIZE);
shorie 6:486b1cb03e61 91
shorie 6:486b1cb03e61 92 // Start UI module.
shorie 6:486b1cb03e61 93 ukifune::init( & audio );
shorie 6:486b1cb03e61 94
shorie 6:486b1cb03e61 95 // Start the ADAU1361. Audio codec starts to generate the I2C signals
shorie 6:486b1cb03e61 96 codec.start();
shorie 6:486b1cb03e61 97 // Start the audio framework on ARM processor.
shorie 6:486b1cb03e61 98 audio.start( init_callback, process_callback); // path the initializaiton and process call back to framework
shorie 6:486b1cb03e61 99
shorie 6:486b1cb03e61 100 // Setup initial analog gain
shorie 6:486b1cb03e61 101 codec.set_hp_output_gain( 0, 0 );
shorie 6:486b1cb03e61 102 codec.set_line_output_gain( 0, 0 );
shorie 6:486b1cb03e61 103 }