suu pen
以前のLibraryでは、スピーカ出力にPWM,DigitalOutを使いましたが、これは、両方ともPWMにしたものです。LPC1114FN28ではDigitalOutにノイズが乗ることがありその対応です。
Dependents: kitchenTimer LPC1114FN28_kitchenTimer_Clock
Diff: Sound.cpp
- Revision:
- 0:e3f005984c2a
- Child:
- 9:5385907711e0
- Child:
- 13:cd42abff5173
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/Sound.cpp Wed Nov 16 12:03:27 2011 +0000
@@ -0,0 +1,453 @@
+/***********************************************************************/
+/* */
+/* Sound.cpp */
+/* */
+/* pwmOutput - digtalOutput de sound syuturyoku suru library */
+/***********************************************************************/
+#define _SOUND_C
+
+#include "types.h"
+#include "mbed.h"
+#include "math.h"
+#include "Sound.h"
+
+LocalFileSystem local("local");
+
+/*******************************************************************
+* syokika
+*******************************************************************/
+Sound::Sound(PinName pwm, PinName kijun) : _pwm(pwm), _kijun(kijun){
+ /***********************
+ * kido ji no yobidasi
+ ***********************/
+ sound_timer.attach_us(this, &Sound::pulseCheck, Z_pulseCheckSyuuki); // oto no hakei syuturyoku check time
+
+ hatuon_jikan.start(); // 1tu no oto no hatuon jikan kakunin
+
+ _pwm.period_us(Z_pwmSyuuki);
+
+ _pwm.write(0.0);
+ _kijun = 0;
+
+
+ keikajikan = 0; // 1tu no oto no keikajikan
+
+ F_pwmSet = 0; // 0:zenhan hansyuuki 1:kohan hansyuuki wo request
+ C_syuukiKeika = 0;
+ f_muonSet = 0; // muon ji no sound_out() syori wo kurikaesu no wo fusegu
+
+}
+
+
+
+/*****************************************
+* analog output
+* siji : syuturyoku siji (0.0 - 1.0) absolute
+* fugo : syuturyoku fugo 0:+ 1:-
+*****************************************/
+void Sound::sound_out(float siji, int8_t fugo){
+
+ // siji no atai wo fugo ga minus no toki hanten
+ if(fugo == 1){siji = 1.0 - siji;}
+ _kijun = fugo;
+
+ _pwm.write(siji); // 2tuizyo sound out settei site ,interrupt no nakade renzoku de pwm set wo suruto bousou suru.
+
+}
+/*****************************************
+* sound hakei pwm output
+* time interrupt
+*****************************************/
+void Sound::pulseCheck(void) {
+
+// uint32_t static C_syuukiKeika = 0;
+// uint8_t static f_muonSet = 0; // muon ji no sound_out() syori wo kurikaesu no wo fusegu
+// uint8_t static F_pwmSet = 0; // 0:zenhan hansyuuki 1:kohan hansyuuki wo request
+
+ float D_soundOut; // syuturyoku suru sinpuku chi (0.0 - 1.0)
+
+ if (O_sound.syuuki != 0) {
+ f_muonSet = 1;
+ // sound ari
+ if (C_syuukiKeika < (O_sound.syuuki / 2.0)) {
+ // zenhan han syuuki
+ if (F_pwmSet == 0) {
+ F_pwmSet = 1;
+
+ D_soundOut = (float)pow(((double)O_sound.envelope / O_sound.shokichienvelope), 2.0);
+ sound_out(D_soundOut, 0);
+ }
+ C_syuukiKeika += Z_pulseCheckSyuuki;
+ } else if (C_syuukiKeika < O_sound.syuuki) {
+ // kohan han syuuki
+ if (F_pwmSet == 1) {
+ F_pwmSet = 2;
+
+ D_soundOut = (float)pow(((double)O_sound.envelope / O_sound.shokichienvelope) , 2.0);
+ sound_out(D_soundOut, 1);
+ }
+ C_syuukiKeika += Z_pulseCheckSyuuki;
+
+
+ } else {
+ // jikai syuuki settei
+ F_pwmSet = 0;
+ C_syuukiKeika = 0;
+ }
+
+ // envelope jikan no kosin
+ if (O_sound.envelope > Z_pulseCheckSyuuki) {
+ O_sound.envelope -= Z_pulseCheckSyuuki;
+ } else {
+ O_sound.envelope = 0;
+ }
+ }
+ else{
+ // O_sound.syuuki == 0 then sound nasi
+
+ if(f_muonSet == 0){
+ f_muonSet = 1;
+ sound_out(0.0, 0); // 5us
+ }
+ }
+
+ //*************************************************
+ // 1ms syuuki syori
+ //*************************************************
+ C_1msProcess++;
+ if((C_1msProcess * Z_pulseCheckSyuuki) > 1000){
+ C_1msProcess = 0;
+ sound_ensoSyori();
+ }
+}
+
+
+/******************************************************************************
+Name : sound_sound()
+Parameters : sound_t .hanon
+ : .onkai
+ : .time : hatuon jikan(1/1 [ms]/count)
+ : .envelope : yoin (1/1 [ms]/count)
+Returns : none
+Description : hitotu no oto no syuturyoku
+******************************************************************************/
+//*************************
+// oto jyotai check
+// ture : oto ari chu
+// false: oto nasi chu
+//*************************
+bool Sound::sound_sound(void){
+ if (hatuon_jikan.read_ms() < keikajikan){
+ return(true);
+ }
+ else{
+ return(false);
+ }
+}
+
+//*************************
+// oto syuturyoku
+//*************************
+void Sound::sound_sound(sound_t data) {
+
+ uint8_t onkai;
+ uint8_t okutabu;
+ uint8_t kaicho;
+
+// oto no frequency // do re mi fa so ra si
+const uint16_t DT_onkaiHzN[3][7] = {// C1 D1 E1 F1 G1 A1 B1 // frequency (1/1 [Hz]/count)
+ {30.8677, 34.6478, 38.8909, 41.2034, 46.2493, 51.9131, 58.2705}, // b
+ {32.7032, 36.7081, 41.2034, 43.6535, 48.9994, 55.0000, 61.7354}, // nomal
+ {34.6478, 38.8909, 43.6535, 46.2493, 51.9131, 58.2705, 65.4064}, // #
+ };
+
+
+ // onkai data kara DT_onkaiHzN[][koko] "koko" no number ni henkan
+ // 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F
+ const uint8_t DT_onkaiTrans[16] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 5, 6, 0, 1, 2, 3};
+
+
+ // tugi no hatuon siji
+ onkai = data.onkai;
+
+ okutabu = onkai & 0x0f;
+ kaicho = DT_onkaiTrans[(onkai & 0xf0) >> 4];
+
+ switch (onkai) {
+ case 0x00:
+ // enso chu (tugi no hatuon nasi settei)
+ // case 0xff to onaji syori
+ case 0xff:
+ // enso syuryo
+ O_sound.syuuki = 0; // muon
+ break;
+ default:
+ // enso chu & tugi no hatuon settei)
+ O_sound.syuuki = 1000000 / (DT_onkaiHzN[data.hanon][kaicho] * (pow(2.0, ((double)okutabu - 1))));
+ O_sound.envelope = data.envelope * 1000;
+ O_sound.shokichienvelope = data.envelope * 1000;
+ break;
+ }
+
+ // oto no syuturyoku jikan timer restart
+ hatuon_jikan.reset();
+ keikajikan = data.time;
+}
+
+/******************************************************************************
+Name : sound_ensoSyori()
+Parameters : none
+Returns : none
+Description : enso ji no tugino onpu data syutoku
+******************************************************************************/
+void Sound::sound_ensoSyori(void) {
+
+ // enso data settei
+ if((sound_sound() == false) // oto no syuturyoku jikan hantei
+ & (onpu != NULL) // enso chu ka wo kakunin
+ ){
+ // tugi no onpu data syutoku
+ sound_t data = *onpu;
+ if(data.onkai == 0xff){
+ onpu = NULL;
+ }
+ else{
+ // tugi no hatuon siji
+ sound_sound(data);
+ onpu++;
+ }
+
+ }
+
+}
+
+
+
+
+/******************************************************************************
+Name : sound_enso()
+Parameters : -
+Returns : -
+Description : -
+******************************************************************************/
+//***********************************************************
+// load enso data(mbed drive)
+// Parameter : "/local/enso.txt" (data name = enso.txt)
+//***********************************************************
+bool Sound::sound_enso(char *path) {
+ int32_t ans;
+
+ // file open
+ FILE *stm = fopen(path,"r");
+ if(stm == NULL){
+ return (false);
+ }
+
+ // enso data set
+ uint8_t i = 0;
+ do{
+ ans = fscanf(stm, "%x%d%d", &enso[i].onkai, &enso[i].time, &enso[i].envelope);
+ i++;
+
+ }while((ans != EOF) & (i < 100));
+
+ fclose(stm);
+
+ ensoDataTable = enso;
+
+ return (true);
+}
+
+//***********************************************************************
+// load enso data(program data table)
+// Parameter : (Sound::sound_t*)DEMEKIN (data table name = DEMEKIN)
+//***********************************************************************
+void Sound::sound_enso(Sound::sound_t* onpudata) {
+ ensoDataTable = onpudata;
+}
+
+
+//*************************
+// enso jyotai check
+// ture : enso chu
+// false: enso syuryo
+//*************************
+bool Sound::sound_enso(void) {
+ bool ans;
+
+ if(onpu != NULL){
+ ans = true;
+ }
+ else{
+ ans = false;
+ }
+ return (ans);
+}
+
+//*******************
+// enso start / stop
+// true : start
+// false: stop
+//*******************
+void Sound::sound_enso(bool siji){
+ if(siji == true){
+ onpu = (sound_t*)ensoDataTable;
+ }
+ else{
+ onpu = NULL;
+ }
+}
+
+
+
+
+
+/******************************************************************************
+Name : enso data sample
+Parameters : -
+Returns : -
+Description : -
+******************************************************************************/
+/*
+//------------------------------
+// "demekin no uta" merody data
+//------------------------------
+ const sound_t DEMEKIN[] = {
+ // onkai,hatuon jikan[ms]
+ {1,0xC5,600,500}, // de
+ {1,0xE5,600,500}, // me
+ {1,0x95,600,500}, // kin
+ {1,0x00,600,500},
+
+ {1,0xC5,600,500}, // de
+ {1,0xE5,600,500}, // me
+ {1,0x95,600,500}, // kin
+ {1,0x00,600,500},
+
+ {1,0xC5,600,500}, // de
+ {1,0xE5,600,500}, // me
+ {1,0x95,600,500}, // kin
+ {1,0x95,600,500}, // no
+ {1,0x95,150,500}, // shi
+ {1,0x00,900,500},
+ {1,0xE5,750,500}, // po
+ {1,0x00,450,500},
+
+ {1,0xC5,600,500}, // de
+ {1,0xE5,600,500}, // me
+ {1,0x95,600,500}, // kin
+ {1,0x00,600,500},
+
+ {1,0xC5,600,500}, // de
+ {1,0xE5,600,500}, // me
+ {1,0x95,600,500}, // kin
+ {1,0x00,600,500},
+
+ {1,0x95,600,500}, // ju
+ {1,0xE5,600,500}, // go
+ {1,0xD5,600,500}, // n
+ {1,0xC5,600,500}, // no
+ {1,0xE5,150,500}, // shi
+ {1,0x00,900,500},
+ {1,0xC5,750,500}, // po
+ {1,0x00,1350,500},
+
+ {1,0xFF,0,0}, // end
+
+ };
+
+//---------------------------------
+// "westminster chime" merody data
+//---------------------------------
+ const sound_t WESTMINSTER[] = {
+ // onkai,hatuon jikan[ms]
+ {1,0xA4,1200,1000},
+ {1,0xF4,1200,1000},
+ {1,0x94,1200,1000},
+ {1,0xC4,2400,1000},
+
+ {1,0xC4,1200,1000},
+ {1,0x94,1200,1000},
+ {1,0xA4,1200,1000},
+ {1,0xF4,2400,1000},
+
+
+ {1,0xFF,0,0}, // end
+ };
+
+//------------------------------
+// "ramen chime" merody data
+//------------------------------
+ const sound_t RAMEN[] = {
+ // onkai,hatuon jikan[ms]
+ {1,0xC5,300,500},
+ {1,0xD5,300,500},
+ {1,0xE5,1200,500},
+ {1,0xD5,600,500},
+ {1,0xC5,1200,500},
+
+ {1,0xC5,300,500},
+ {1,0xD5,300,500},
+ {1,0xE5,300,500},
+ {1,0xD5,300,500},
+ {1,0xC5,300,500},
+ {1,0xD5,1800,500},
+
+
+ {1,0xFF,0,0}, // end
+ };
+*/
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