Stefano Fasciani / ARMmbedFMsinth

Simple FM Sound Synthesis with touch screen and accelerometer control, based on STM32F746G-DISCO

Dependencies:   ADXL345 AUDIO_DISCO_F746NG BSP_DISCO_F746NG LCD_DISCO_F746NG SDRAM_DISCO_F746NG TS_DISCO_F746NG mbed-dev

Fork of Workshop_5 by Stefano Fasciani

main.cpp@3:cd1cb0003a3d, 2017-01-01 (annotated)

Committer:
stefanofasciani
Date:
Sun Jan 01 13:54:19 2017 +0000
Revision:
3:cd1cb0003a3d
Parent:
2:a1330350c32e 
First Commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
stefanofasciani 2:a1330350c32e 1 // Author: Stefano Fasciani - stefanofasciani@stefanofasciani.com
stefanofasciani 2:a1330350c32e 2 // Date 7/8/2016
stefanofasciani 2:a1330350c32e 3 // FM Sinth for DISCO_F746NG and ADXL345
adustm 0:da04816fb411 4
stefanofasciani 2:a1330350c32e 5
stefanofasciani 2:a1330350c32e 6 #include "sinth.h"
stefanofasciani 2:a1330350c32e 7
stefanofasciani 2:a1330350c32e 8 ADXL345 accelerometer(D11,D12,D13,D10);
stefanofasciani 2:a1330350c32e 9 TS_DISCO_F746NG ts;
stefanofasciani 2:a1330350c32e 10 TS_StateTypeDef TS;
adustm 0:da04816fb411 11 AUDIO_DISCO_F746NG audio;
adustm 0:da04816fb411 12 SDRAM_DISCO_F746NG sdram;
stefanofasciani 2:a1330350c32e 13 LCD_DISCO_F746NG lcd;
adustm 0:da04816fb411 14 Serial pc(USBTX, USBRX);
adustm 0:da04816fb411 15
stefanofasciani 2:a1330350c32e 16
stefanofasciani 3:cd1cb0003a3d 17 //FM Synthesis Initial Parameters
stefanofasciani 2:a1330350c32e 18 float amplitude = 0.5; //numbers between 0.0 and 1.0
stefanofasciani 2:a1330350c32e 19 float pitch = 400; // numbers between 50 and 5000
stefanofasciani 2:a1330350c32e 20 float modrate = 0; // numbers between -1000 and 1000
stefanofasciani 2:a1330350c32e 21 float moddepth = 0; //numbers between -1000 and 1000
stefanofasciani 2:a1330350c32e 22 float filter = 1.0f; //numbers between 0.0 (full filter) and 1.0 (do not filter)
stefanofasciani 2:a1330350c32e 23
stefanofasciani 2:a1330350c32e 24
adustm 0:da04816fb411 25
stefanofasciani 2:a1330350c32e 26 void get_parameters(){
stefanofasciani 2:a1330350c32e 27
stefanofasciani 2:a1330350c32e 28 char temp_string[20];
stefanofasciani 2:a1330350c32e 29
stefanofasciani 2:a1330350c32e 30 //read input data
stefanofasciani 2:a1330350c32e 31 ts.GetState(&TS);
stefanofasciani 2:a1330350c32e 32 accelerometer.getOutput(acc_readings);
stefanofasciani 2:a1330350c32e 33
stefanofasciani 2:a1330350c32e 34
stefanofasciani 2:a1330350c32e 35 if(TS.touchDetected){
stefanofasciani 2:a1330350c32e 36 //map to synthesis parameters
stefanofasciani 2:a1330350c32e 37 amplitude = 0.5; //map(get_touch_vertical(),0.0,1.0);
stefanofasciani 2:a1330350c32e 38 }
stefanofasciani 2:a1330350c32e 39 else {
stefanofasciani 2:a1330350c32e 40 amplitude = 0;
stefanofasciani 2:a1330350c32e 41 }
stefanofasciani 2:a1330350c32e 42
stefanofasciani 2:a1330350c32e 43
stefanofasciani 2:a1330350c32e 44 pitch = get_note_pitch(); //map(get_touch_horizontal(),50.0,5000.0);
stefanofasciani 2:a1330350c32e 45
stefanofasciani 2:a1330350c32e 46 modrate = map(get_acc_horizontal(), //input
stefanofasciani 2:a1330350c32e 47 0, //modrate range minimum (not less than -1000)
stefanofasciani 2:a1330350c32e 48 200.0); //modrate range maximum (not higher than 1000)
stefanofasciani 2:a1330350c32e 49
stefanofasciani 2:a1330350c32e 50 moddepth = map(get_acc_vertical(), //input
stefanofasciani 2:a1330350c32e 51 -100.0, //moddepth range minimum (not less than -1000)
stefanofasciani 2:a1330350c32e 52 100.0); //moddepth range maximum (not higher than 1000)
stefanofasciani 2:a1330350c32e 53
stefanofasciani 2:a1330350c32e 54
stefanofasciani 2:a1330350c32e 55
stefanofasciani 2:a1330350c32e 56 filter = map(get_touch_vertical(), //input
stefanofasciani 2:a1330350c32e 57 0.0, //filter range minimum (not less than 0.0)
stefanofasciani 2:a1330350c32e 58 0.7); //filter range maximum (not higher than 1.0)
stefanofasciani 2:a1330350c32e 59
stefanofasciani 2:a1330350c32e 60
stefanofasciani 2:a1330350c32e 61 //update display
stefanofasciani 2:a1330350c32e 62 switch(update_round){
stefanofasciani 2:a1330350c32e 63 case 0:
stefanofasciani 2:a1330350c32e 64 sprintf(temp_string,"%f",amplitude); lcd.DisplayStringAt(250, LINE(1),(uint8_t *)temp_string, LEFT_MODE);
stefanofasciani 2:a1330350c32e 65 case 1:
stefanofasciani 2:a1330350c32e 66 sprintf(temp_string,"%f",pitch); lcd.DisplayStringAt(250, LINE(3),(uint8_t *)temp_string, LEFT_MODE);
stefanofasciani 2:a1330350c32e 67 case 2:
stefanofasciani 2:a1330350c32e 68 sprintf(temp_string,"%f",modrate); lcd.DisplayStringAt(250, LINE(5),(uint8_t *)temp_string, LEFT_MODE);
stefanofasciani 2:a1330350c32e 69 case 3:
stefanofasciani 2:a1330350c32e 70 sprintf(temp_string,"%f",moddepth); lcd.DisplayStringAt(250, LINE(7),(uint8_t *)temp_string, LEFT_MODE);
stefanofasciani 2:a1330350c32e 71 case 4:
stefanofasciani 2:a1330350c32e 72 sprintf(temp_string,"%f",filter); lcd.DisplayStringAt(250, LINE(9),(uint8_t *)temp_string, LEFT_MODE);
stefanofasciani 2:a1330350c32e 73 }
stefanofasciani 2:a1330350c32e 74 update_round++;
stefanofasciani 2:a1330350c32e 75 if(update_round>4)update_round=0;
stefanofasciani 2:a1330350c32e 76
stefanofasciani 2:a1330350c32e 77 return;
stefanofasciani 2:a1330350c32e 78 }
stefanofasciani 2:a1330350c32e 79
stefanofasciani 2:a1330350c32e 80
stefanofasciani 2:a1330350c32e 81
adustm 0:da04816fb411 82 int main()
adustm 0:da04816fb411 83 {
stefanofasciani 2:a1330350c32e 84
stefanofasciani 2:a1330350c32e 85 //initialize touch screen
stefanofasciani 2:a1330350c32e 86 ts.Init(lcd.GetXSize(), lcd.GetYSize());
stefanofasciani 2:a1330350c32e 87 wait(0.2);
stefanofasciani 2:a1330350c32e 88
stefanofasciani 2:a1330350c32e 89 // lcd initialization to display synthesis parameter
stefanofasciani 2:a1330350c32e 90 lcd.Clear(LCD_COLOR_BLACK);
stefanofasciani 2:a1330350c32e 91 display_keyboard();
stefanofasciani 2:a1330350c32e 92 lcd.SetBackColor(LCD_COLOR_BLACK);
stefanofasciani 2:a1330350c32e 93 lcd.SetTextColor(LCD_COLOR_LIGHTBLUE);
stefanofasciani 2:a1330350c32e 94 lcd.DisplayStringAt(10, LINE(1),(uint8_t *)"AMPLITUDE :", LEFT_MODE);
stefanofasciani 2:a1330350c32e 95 lcd.DisplayStringAt(10, LINE(3),(uint8_t *)"PITCH (Hz) :", LEFT_MODE);
stefanofasciani 2:a1330350c32e 96 lcd.DisplayStringAt(10, LINE(5),(uint8_t *)"MOD.RATE (Hz):", LEFT_MODE);
stefanofasciani 2:a1330350c32e 97 lcd.DisplayStringAt(10, LINE(7),(uint8_t *)"MOD.DEPTH :", LEFT_MODE);
stefanofasciani 2:a1330350c32e 98 lcd.DisplayStringAt(10, LINE(9),(uint8_t *)"FILTER :", LEFT_MODE);
stefanofasciani 2:a1330350c32e 99
stefanofasciani 2:a1330350c32e 100 wait(0.2);
stefanofasciani 2:a1330350c32e 101
stefanofasciani 2:a1330350c32e 102
stefanofasciani 2:a1330350c32e 103 //initialize accelerometer
stefanofasciani 2:a1330350c32e 104 accelerometer.getDevId();
stefanofasciani 2:a1330350c32e 105 accelerometer.setPowerControl(0x00);
stefanofasciani 2:a1330350c32e 106 accelerometer.setDataFormatControl(0x0B);
stefanofasciani 2:a1330350c32e 107 accelerometer.setDataRate(ADXL345_3200HZ);
stefanofasciani 2:a1330350c32e 108 accelerometer.setPowerControl(0x08);
stefanofasciani 2:a1330350c32e 109 wait(0.2);
stefanofasciani 2:a1330350c32e 110
stefanofasciani 2:a1330350c32e 111 //sound synthesis initialization
stefanofasciani 2:a1330350c32e 112 init_sin_table();
adustm 0:da04816fb411 113 SetSysClock_PLL_HSE_200MHz();
adustm 0:da04816fb411 114 pc.baud(9600);
stefanofasciani 2:a1330350c32e 115 memset((void *)out_buffer, 0, AUDIO_BLOCK_SIZE*2*sizeof(uint16_t));
stefanofasciani 2:a1330350c32e 116 audio_out_buffer_state = BUFFER_OFFSET_NONE;
adustm 0:da04816fb411 117 audio.OUT_SetAudioFrameSlot(CODEC_AUDIOFRAME_SLOT_02);
stefanofasciani 2:a1330350c32e 118 audio.OUT_Play((uint16_t*)out_buffer, AUDIO_BLOCK_SIZE * 2 * sizeof(int16_t));
adustm 0:da04816fb411 119
adustm 0:da04816fb411 120
adustm 0:da04816fb411 121 while (1) {
stefanofasciani 2:a1330350c32e 122
stefanofasciani 2:a1330350c32e 123 while(audio_out_buffer_state != BUFFER_OFFSET_HALF);
stefanofasciani 2:a1330350c32e 124 audio_out_buffer_state = BUFFER_OFFSET_NONE;
stefanofasciani 2:a1330350c32e 125 get_parameters();
stefanofasciani 2:a1330350c32e 126 sint_osc();
stefanofasciani 2:a1330350c32e 127 copy_buffer(0);
stefanofasciani 2:a1330350c32e 128
stefanofasciani 2:a1330350c32e 129
stefanofasciani 2:a1330350c32e 130 while(audio_out_buffer_state != BUFFER_OFFSET_FULL);
stefanofasciani 2:a1330350c32e 131 audio_out_buffer_state = BUFFER_OFFSET_NONE;
stefanofasciani 2:a1330350c32e 132 get_parameters();
stefanofasciani 2:a1330350c32e 133 sint_osc();
stefanofasciani 2:a1330350c32e 134 copy_buffer(AUDIO_BLOCK_SIZE);
stefanofasciani 2:a1330350c32e 135
adustm 0:da04816fb411 136 }
adustm 0:da04816fb411 137 }
adustm 0:da04816fb411 138
stefanofasciani 2:a1330350c32e 139 /*
stefanofasciani 2:a1330350c32e 140 CONNECTION DISCO_F746NG to ADXL345
stefanofasciani 2:a1330350c32e 141 D10 - SS - CS
stefanofasciani 2:a1330350c32e 142 D11 - MOSI - SDA
stefanofasciani 2:a1330350c32e 143 D12 - MISO - SDO
stefanofasciani 2:a1330350c32e 144 D13 - SCK - SCL
stefanofasciani 2:a1330350c32e 145 3V3 - VCC - VCC
stefanofasciani 2:a1330350c32e 146 GND - GND - GND
stefanofasciani 2:a1330350c32e 147 */
adustm 0:da04816fb411 148
stefanofasciani 2:a1330350c32e 149
stefanofasciani 2:a1330350c32e 150
adustm 0:da04816fb411 151
stefanofasciani 2:a1330350c32e 152
stefanofasciani 2:a1330350c32e 153