mi mi / Mbed 2 deprecated wave_player_super_lite

16bit resolution PWM wave player with SD card, super lite version.

Dependencies:   mbed DirectSPI FastPWM

Supported boards (confirmed):
Nucleo-F030R8
Nucleo-L152RE
Nucleo-F401RE
Nucleo-F411RE

Only compilation is OK (unchecked, but may work):
Nucleo-L073RZ
Nucleo-F334R8
Nucleo-F303RE
Nucleo-F429ZI
Nucleo-F446RE
Nucleo-F446ZE
Nucleo-L476RG

Supported SD card:
SDSC/SDHC card,
FAT16 and FAT32.
(1) At first, format SD card using SD Card Formatter
https://www.sdcard.org/downloads/formatter_4/index.html
(2) Copy PCM wav files to the SD card.
Supported file:
PCM wave file that have file extension ".wav" on root directory.
16bit/8bit, fs(sampling rate)=32kHz,44.1kHz,48kHz.
Stereo/Mono.

Hardware setting:
Refer to the file port_setting.txt
PWM output port:
Left upper(Hi) PWM 8bit out: PB_5 (TM3_CH2)
Right upper(Hi) PWM 8bit out: PB4 (TM3_CH1)
Left lower(Low) PWM 8bit out: PC_9 (TM3_CH4)
Right lower(Low) PWM 8bit out: PC_8 (TM3_CH3)
http://mpu.up.seesaa.net/image/16bit-wave-player-output-schema.png
USER_BUTTON: PC_13(default button)
Next song: One click in Play mode.
Pause : Push long time .
Play : One click from Pause.

wave_player_main.cpp@5:4aa4cc29d5ef, 2019-01-19 (annotated)

Committer:
mimi3
Date:
Sat Jan 19 17:31:23 2019 +0900
Revision:
5:4aa4cc29d5ef
Parent:
0:9a5c2fb0d96f
Child:
6:d9ea630e1ba5
Speed up the entry of period interrupt routin (PWM).

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mimi3 0:9a5c2fb0d96f 1 #include "sys.h"
mimi3 0:9a5c2fb0d96f 2 #include "sd_card.h"
mimi3 0:9a5c2fb0d96f 3 #include "fat_lib.h"
mimi3 0:9a5c2fb0d96f 4 #include "pwm_lib.h"
mimi3 0:9a5c2fb0d96f 5 #include "timers.h"
mimi3 0:9a5c2fb0d96f 6
mimi3 0:9a5c2fb0d96f 7 #define CH_STEREO 2 // 2:STEREO, 1:MONO
mimi3 0:9a5c2fb0d96f 8 #define wREAD_COUNT 512
mimi3 0:9a5c2fb0d96f 9 #define bHEADER_COUNT 44
mimi3 0:9a5c2fb0d96f 10 #define send_ff() spi_read()
mimi3 0:9a5c2fb0d96f 11 #define send_ff16() spi_read16()
mimi3 0:9a5c2fb0d96f 12 #define CUT_LAST_TAG_NOISE (30*1000)
mimi3 0:9a5c2fb0d96f 13 #if (HAVE_LED_INDICATOR==1) || (HAVE_LED_INDICATOR_2==1)
mimi3 0:9a5c2fb0d96f 14 DigitalOut led(IND_LED);
mimi3 0:9a5c2fb0d96f 15 #endif
mimi3 0:9a5c2fb0d96f 16
mimi3 0:9a5c2fb0d96f 17 /******************
mimi3 0:9a5c2fb0d96f 18 varialble definitions
mimi3 0:9a5c2fb0d96f 19 *******************/
mimi3 0:9a5c2fb0d96f 20 #define LED_PERIOD_PLAYNG 75 //[ * 10 msec]
mimi3 0:9a5c2fb0d96f 21 #define LED_PERIOD_PAUSING 10 //[ * 10 msec]
mimi3 0:9a5c2fb0d96f 22 dword ldwSongFileSectors;
mimi3 0:9a5c2fb0d96f 23 dword ldwSample_freq;
mimi3 0:9a5c2fb0d96f 24 word lwReadCount;
mimi3 0:9a5c2fb0d96f 25 byte lbSample_bits = 16;
mimi3 0:9a5c2fb0d96f 26 byte lbCh_mode = CH_STEREO;
mimi3 0:9a5c2fb0d96f 27 byte bVolumeUpFactor;
mimi3 0:9a5c2fb0d96f 28 sbit fPlaying;
mimi3 0:9a5c2fb0d96f 29 sbit lfEndOneSong = true ; //to start music automatically
mimi3 0:9a5c2fb0d96f 30
mimi3 0:9a5c2fb0d96f 31 DigitalIn btn_bit_now(USER_BUTTON,PullUp);
mimi3 0:9a5c2fb0d96f 32
mimi3 0:9a5c2fb0d96f 33 #if TEST_PORT_ENABLE
mimi3 0:9a5c2fb0d96f 34 DigitalOut test_port(TEST_PORT);
mimi3 0:9a5c2fb0d96f 35 #endif
mimi3 0:9a5c2fb0d96f 36
mimi3 0:9a5c2fb0d96f 37 /**********************
mimi3 0:9a5c2fb0d96f 38 Period Timer Interrupt
mimi3 0:9a5c2fb0d96f 39 **********************/
mimi3 0:9a5c2fb0d96f 40 /* HAL callback for PWM Timer Intrrupt * */
mimi3 5:4aa4cc29d5ef 41 void pwmPeriodIntr( void ){
mimi3 5:4aa4cc29d5ef 42 if(TIM3->SR & TIM_SR_UIF){
mimi3 0:9a5c2fb0d96f 43 #if TEST_PORT_ENABLE
mimi3 0:9a5c2fb0d96f 44 test_port =1;
mimi3 0:9a5c2fb0d96f 45 #endif
mimi3 0:9a5c2fb0d96f 46 fPlaying = true;
mimi3 0:9a5c2fb0d96f 47 #if PWM16BIT
mimi3 0:9a5c2fb0d96f 48 word wL_low,wL_hi,wR_low,wR_hi;
mimi3 0:9a5c2fb0d96f 49 dword dw;
mimi3 0:9a5c2fb0d96f 50 if( lbSample_bits == 16 ) {
mimi3 0:9a5c2fb0d96f 51 dw = ((word)(send_ff() + (send_ff()<<8) + 0x8000)) << bVolumeUpFactor;
mimi3 0:9a5c2fb0d96f 52 wL_low = wR_low = (dw & 0xff); // get lower 8bit
mimi3 0:9a5c2fb0d96f 53 wL_hi = wR_hi = (dw >>8); // get upper 10bit
mimi3 0:9a5c2fb0d96f 54 lwReadCount -= 2;
mimi3 0:9a5c2fb0d96f 55 if( lbCh_mode == CH_STEREO ) {
mimi3 0:9a5c2fb0d96f 56 dw = ((word)(send_ff() + (send_ff()<<8) + 0x8000)) << bVolumeUpFactor;
mimi3 0:9a5c2fb0d96f 57 wR_low = (dw & 0xff);
mimi3 0:9a5c2fb0d96f 58 wR_hi = (dw >> 8);
mimi3 0:9a5c2fb0d96f 59 lwReadCount -= 2;
mimi3 0:9a5c2fb0d96f 60 }
mimi3 0:9a5c2fb0d96f 61 }
mimi3 0:9a5c2fb0d96f 62 #if DATA_8BIT_SUPPORT
mimi3 0:9a5c2fb0d96f 63 else { /* 8bit data */
mimi3 0:9a5c2fb0d96f 64 wL_hi = wR_hi = send_ff() << bVolumeUpFactor; // volume up to 10bit (x4) from 8bit
mimi3 0:9a5c2fb0d96f 65 wL_low = 0;
mimi3 0:9a5c2fb0d96f 66 wR_low = 0;
mimi3 0:9a5c2fb0d96f 67 lwReadCount -= 1;
mimi3 0:9a5c2fb0d96f 68 if( lbCh_mode == CH_STEREO ) { /* for stereo */
mimi3 0:9a5c2fb0d96f 69 wR_hi = send_ff() << 2;
mimi3 0:9a5c2fb0d96f 70 wR_low = 0;
mimi3 0:9a5c2fb0d96f 71 lwReadCount -= 1;
mimi3 0:9a5c2fb0d96f 72 }
mimi3 0:9a5c2fb0d96f 73 }
mimi3 0:9a5c2fb0d96f 74 #endif
mimi3 0:9a5c2fb0d96f 75 //# change pwm duties
mimi3 0:9a5c2fb0d96f 76 pwm_dutyL_hi( wL_hi ) ;
mimi3 0:9a5c2fb0d96f 77 pwm_dutyL_low( wL_low ) ;
mimi3 0:9a5c2fb0d96f 78 pwm_dutyR_hi( wR_hi ) ;
mimi3 0:9a5c2fb0d96f 79 pwm_dutyR_low( wR_low ) ;
mimi3 0:9a5c2fb0d96f 80
mimi3 0:9a5c2fb0d96f 81 #else // not PWM16BIT
mimi3 0:9a5c2fb0d96f 82 word wL =0,wR = 0;
mimi3 0:9a5c2fb0d96f 83 if( lbSample_bits == 16 ) {
mimi3 0:9a5c2fb0d96f 84 wL = wR = ((word)(send_ff() + (send_ff()<<8) + 0x8000))>>gPcmShifNum;
mimi3 0:9a5c2fb0d96f 85 lwReadCount -= 2;
mimi3 0:9a5c2fb0d96f 86 if( lbCh_mode == CH_STEREO ) {
mimi3 0:9a5c2fb0d96f 87 wR = (word)(send_ff() + (send_ff()<<8) + 0x8000)>>gPcmShifNum;
mimi3 0:9a5c2fb0d96f 88 lwReadCount -= 2;
mimi3 0:9a5c2fb0d96f 89 }
mimi3 0:9a5c2fb0d96f 90 }
mimi3 0:9a5c2fb0d96f 91 #if DATA_8BIT_SUPPORT
mimi3 0:9a5c2fb0d96f 92 else { /* 8bit data */
mimi3 0:9a5c2fb0d96f 93 wL = wR = send_ff() << bVolumeUpFactor; // volume up to 10bit (x4) from 8bit
mimi3 0:9a5c2fb0d96f 94 lwReadCount -= 1;
mimi3 0:9a5c2fb0d96f 95 if( lbCh_mode == CH_STEREO ) { /* for stereo */
mimi3 0:9a5c2fb0d96f 96 wR = send_ff() << bVolumeUpFactor;
mimi3 0:9a5c2fb0d96f 97 lwReadCount -= 1;
mimi3 0:9a5c2fb0d96f 98 }
mimi3 0:9a5c2fb0d96f 99 }
mimi3 0:9a5c2fb0d96f 100 #endif
mimi3 0:9a5c2fb0d96f 101 //# change pwm duties
mimi3 0:9a5c2fb0d96f 102 pwm_dutyL_hi( wL ) ;
mimi3 0:9a5c2fb0d96f 103 pwm_dutyR_hi( wR ) ;
mimi3 0:9a5c2fb0d96f 104 #endif
mimi3 0:9a5c2fb0d96f 105
mimi3 0:9a5c2fb0d96f 106 //; check 512byte sector boundery
mimi3 0:9a5c2fb0d96f 107 if( lwReadCount == 0){
mimi3 0:9a5c2fb0d96f 108 //; end 1 sector
mimi3 0:9a5c2fb0d96f 109 send_ff() ;// dummy read 1st. discard CRC
mimi3 0:9a5c2fb0d96f 110 send_ff() ;// 2nd.
mimi3 0:9a5c2fb0d96f 111 while( send_ff() != 0xFE) {}
mimi3 0:9a5c2fb0d96f 112 lwReadCount = wREAD_COUNT;
mimi3 0:9a5c2fb0d96f 113 ldwSongFileSectors -= 1;
mimi3 0:9a5c2fb0d96f 114 }
mimi3 0:9a5c2fb0d96f 115 #if TEST_PORT_ENABLE
mimi3 0:9a5c2fb0d96f 116 test_port =0;
mimi3 0:9a5c2fb0d96f 117 #endif
mimi3 5:4aa4cc29d5ef 118
mimi3 5:4aa4cc29d5ef 119 TIM3->SR &= (~TIM_SR_UIF);
mimi3 0:9a5c2fb0d96f 120 }
mimi3 0:9a5c2fb0d96f 121 }
mimi3 0:9a5c2fb0d96f 122
mimi3 0:9a5c2fb0d96f 123 /******************
mimi3 0:9a5c2fb0d96f 124 wave_player_main
mimi3 0:9a5c2fb0d96f 125 *******************/
mimi3 0:9a5c2fb0d96f 126 void wave_player_main(){
mimi3 0:9a5c2fb0d96f 127 bVolumeUpFactor = calcPcmValidBits() - 8;
mimi3 0:9a5c2fb0d96f 128 word wBtnLowCount = 0;
mimi3 0:9a5c2fb0d96f 129 #if HAVE_LED_INDICATOR_2
mimi3 0:9a5c2fb0d96f 130 byte bTimeout_led = 0;
mimi3 0:9a5c2fb0d96f 131 #endif
mimi3 0:9a5c2fb0d96f 132 sbit btn_bit_prev = true, btn_short_on = false;
mimi3 0:9a5c2fb0d96f 133 sbit btn_long_on = false;
mimi3 0:9a5c2fb0d96f 134 #if HAVE_POWER_OFF_MODE
mimi3 0:9a5c2fb0d96f 135 btn_long_on2 = false;
mimi3 0:9a5c2fb0d96f 136 #endif
mimi3 0:9a5c2fb0d96f 137 sbit btn_pause_prev = false;
mimi3 0:9a5c2fb0d96f 138 #define btn_next_song_on btn_short_on
mimi3 0:9a5c2fb0d96f 139 #define btn_pause_on btn_long_on
mimi3 0:9a5c2fb0d96f 140 #define btn_power_off_on btn_long_on2
mimi3 0:9a5c2fb0d96f 141
mimi3 0:9a5c2fb0d96f 142 #if HAVE_LED_INDICATOR // pseudo PWM setting
mimi3 0:9a5c2fb0d96f 143 const byte LED_OFF_DELAY_PAUSE = 5;
mimi3 0:9a5c2fb0d96f 144 const byte LED_OFF_DELAY_PLAY = 50;
mimi3 0:9a5c2fb0d96f 145 const sbyte PRD_COUNT = 0x6f ; //max 0x7f
mimi3 0:9a5c2fb0d96f 146 const sbyte PAUSE_DUTY_MAX = PRD_COUNT/4;
mimi3 0:9a5c2fb0d96f 147 sbyte sbDuty=0, sbCurrent_pos=0, sbDir=1;
mimi3 0:9a5c2fb0d96f 148 sbyte sbMode_duty = PRD_COUNT ; //set duty playing
mimi3 0:9a5c2fb0d96f 149 sbyte sbPseudo_period = PRD_COUNT ; //period for pseudo PWM
mimi3 0:9a5c2fb0d96f 150 byte bOff_delay = LED_OFF_DELAY_PAUSE;
mimi3 0:9a5c2fb0d96f 151 #endif
mimi3 0:9a5c2fb0d96f 152
mimi3 0:9a5c2fb0d96f 153 init_tickTimer();
mimi3 0:9a5c2fb0d96f 154
mimi3 0:9a5c2fb0d96f 155 while(1){
mimi3 0:9a5c2fb0d96f 156 //; wait 10msec Ticker flag
mimi3 0:9a5c2fb0d96f 157 while ( !isTickTimer_IF() ) {
mimi3 0:9a5c2fb0d96f 158 if( ldwSongFileSectors == 0 ){ //; found end of file
mimi3 0:9a5c2fb0d96f 159 break; //promptly exit and prepare next song
mimi3 0:9a5c2fb0d96f 160 }
mimi3 0:9a5c2fb0d96f 161
mimi3 0:9a5c2fb0d96f 162 #if HAVE_LED_INDICATOR
mimi3 0:9a5c2fb0d96f 163 /*---------------------
mimi3 0:9a5c2fb0d96f 164 pseudo PWM for LED
mimi3 0:9a5c2fb0d96f 165 ---------------------*/
mimi3 0:9a5c2fb0d96f 166 if( sbCurrent_pos < sbDuty ){
mimi3 0:9a5c2fb0d96f 167 if( sbDir == 0 ){
mimi3 0:9a5c2fb0d96f 168 led = 0;
mimi3 0:9a5c2fb0d96f 169 }else{
mimi3 0:9a5c2fb0d96f 170 led = 1;
mimi3 0:9a5c2fb0d96f 171 }
mimi3 0:9a5c2fb0d96f 172 } else {
mimi3 0:9a5c2fb0d96f 173 led = 0;
mimi3 0:9a5c2fb0d96f 174 }
mimi3 0:9a5c2fb0d96f 175 sbCurrent_pos = sbCurrent_pos + 1;
mimi3 0:9a5c2fb0d96f 176 sbPseudo_period = sbPseudo_period - 1;
mimi3 0:9a5c2fb0d96f 177 if( sbPseudo_period == 0 ){
mimi3 0:9a5c2fb0d96f 178 sbPseudo_period = PRD_COUNT;
mimi3 0:9a5c2fb0d96f 179 sbCurrent_pos = 0;
mimi3 0:9a5c2fb0d96f 180 }
mimi3 0:9a5c2fb0d96f 181 #endif
mimi3 0:9a5c2fb0d96f 182 } //; end. wait 10msec Ticker flag
mimi3 0:9a5c2fb0d96f 183
mimi3 0:9a5c2fb0d96f 184 //-------------------
mimi3 0:9a5c2fb0d96f 185 tickTimer_IF_clear();
mimi3 0:9a5c2fb0d96f 186 //-------------------
mimi3 0:9a5c2fb0d96f 187
mimi3 0:9a5c2fb0d96f 188 #if HAVE_BUTTON_SW
mimi3 0:9a5c2fb0d96f 189 /*-------------------
mimi3 0:9a5c2fb0d96f 190 Pause release
mimi3 0:9a5c2fb0d96f 191 -------------------*/
mimi3 0:9a5c2fb0d96f 192 if( btn_next_song_on){
mimi3 0:9a5c2fb0d96f 193 if( !fPlaying){ // ; if during pause
mimi3 0:9a5c2fb0d96f 194 fPlaying = true ; //release pause
mimi3 0:9a5c2fb0d96f 195 btn_next_song_on = false;
mimi3 0:9a5c2fb0d96f 196 btn_pause_on = false;
mimi3 0:9a5c2fb0d96f 197 #if HAVE_LED_INDICATOR
mimi3 0:9a5c2fb0d96f 198 sbDuty = 0;
mimi3 0:9a5c2fb0d96f 199 sbDir = 1;
mimi3 0:9a5c2fb0d96f 200 #endif
mimi3 0:9a5c2fb0d96f 201 pwm_period_timer_start();
mimi3 0:9a5c2fb0d96f 202 }
mimi3 0:9a5c2fb0d96f 203 }
mimi3 0:9a5c2fb0d96f 204
mimi3 0:9a5c2fb0d96f 205 /*-------------------
mimi3 0:9a5c2fb0d96f 206 Pause enter
mimi3 0:9a5c2fb0d96f 207 -------------------*/
mimi3 0:9a5c2fb0d96f 208 if( btn_pause_prev ^ btn_pause_on ){
mimi3 0:9a5c2fb0d96f 209 if( btn_pause_on ){
mimi3 0:9a5c2fb0d96f 210 fPlaying = false;
mimi3 0:9a5c2fb0d96f 211 pwm_period_timer_stop();
mimi3 0:9a5c2fb0d96f 212 #if HAVE_LED_INDICATOR
mimi3 0:9a5c2fb0d96f 213 sbDuty = PAUSE_DUTY_MAX/2;
mimi3 0:9a5c2fb0d96f 214 sbDir = -1;
mimi3 0:9a5c2fb0d96f 215 #endif
mimi3 0:9a5c2fb0d96f 216 }
mimi3 0:9a5c2fb0d96f 217 }
mimi3 0:9a5c2fb0d96f 218 btn_pause_prev = btn_pause_on;
mimi3 0:9a5c2fb0d96f 219 #endif
mimi3 0:9a5c2fb0d96f 220
mimi3 0:9a5c2fb0d96f 221 /*-------------------
mimi3 0:9a5c2fb0d96f 222 Next song and start
mimi3 0:9a5c2fb0d96f 223 -------------------*/
mimi3 0:9a5c2fb0d96f 224 if( lfEndOneSong){
mimi3 0:9a5c2fb0d96f 225 lfEndOneSong = false;
mimi3 0:9a5c2fb0d96f 226 searchNextFile();
mimi3 0:9a5c2fb0d96f 227 //; delete about last 30Kbyte to cut tag data in *.wav file
mimi3 0:9a5c2fb0d96f 228 ldwSongFileSectors = ( (gdwBPB_FileSize - CUT_LAST_TAG_NOISE) )>>9 ; //512 , change to sector
mimi3 0:9a5c2fb0d96f 229 //## Seek to Target file sector
mimi3 0:9a5c2fb0d96f 230 sd_start_read( gdwTargetFileSector );
mimi3 0:9a5c2fb0d96f 231
mimi3 0:9a5c2fb0d96f 232 //### get wav header info ###
mimi3 0:9a5c2fb0d96f 233 sd_read_pulse_byte(22);// ## Skip part of WAV header
mimi3 0:9a5c2fb0d96f 234 lbCh_mode = sd_data_byte();
mimi3 0:9a5c2fb0d96f 235 sd_data_byte(); //# dummy read
mimi3 0:9a5c2fb0d96f 236 ldwSample_freq = sd_data_byte() + (sd_data_byte() << 8) +
mimi3 0:9a5c2fb0d96f 237 (sd_data_byte() << 16) +
mimi3 0:9a5c2fb0d96f 238 (sd_data_byte() << 24);
mimi3 0:9a5c2fb0d96f 239 setPwmPeriod(ldwSample_freq);
mimi3 0:9a5c2fb0d96f 240 sd_read_pulse_byte(6);// ## Skip some headers
mimi3 0:9a5c2fb0d96f 241 lbSample_bits = sd_data_byte();
mimi3 0:9a5c2fb0d96f 242 sd_read_pulse_byte(9) ;//## Skip to last position of header
mimi3 0:9a5c2fb0d96f 243 //###########################
mimi3 0:9a5c2fb0d96f 244
mimi3 0:9a5c2fb0d96f 245 lwReadCount = wREAD_COUNT - bHEADER_COUNT;
mimi3 0:9a5c2fb0d96f 246 //; music start
mimi3 0:9a5c2fb0d96f 247 pwm_period_timer_start();
mimi3 0:9a5c2fb0d96f 248
mimi3 0:9a5c2fb0d96f 249 #if HAVE_LED_INDICATOR
mimi3 0:9a5c2fb0d96f 250 sbDuty = 0;
mimi3 0:9a5c2fb0d96f 251 sbDir = 1;
mimi3 0:9a5c2fb0d96f 252 #endif
mimi3 0:9a5c2fb0d96f 253 }
mimi3 0:9a5c2fb0d96f 254
mimi3 0:9a5c2fb0d96f 255 /*-------------------
mimi3 0:9a5c2fb0d96f 256 wait end of one song
mimi3 0:9a5c2fb0d96f 257 -------------------*/
mimi3 0:9a5c2fb0d96f 258 if ( ( ldwSongFileSectors == 0 ) | btn_next_song_on ){
mimi3 0:9a5c2fb0d96f 259 pwm_period_timer_stop();
mimi3 0:9a5c2fb0d96f 260 fPlaying = false;
mimi3 0:9a5c2fb0d96f 261 btn_next_song_on = false;
mimi3 0:9a5c2fb0d96f 262 lfEndOneSong = true;
mimi3 0:9a5c2fb0d96f 263 sd_stop_read();
mimi3 0:9a5c2fb0d96f 264 }
mimi3 0:9a5c2fb0d96f 265
mimi3 0:9a5c2fb0d96f 266 /*-------------------
mimi3 0:9a5c2fb0d96f 267 LED indicator 1 --- pseudo PWM
mimi3 0:9a5c2fb0d96f 268 -------------------*/
mimi3 0:9a5c2fb0d96f 269 #if HAVE_LED_INDICATOR
mimi3 0:9a5c2fb0d96f 270 if( fPlaying ){
mimi3 0:9a5c2fb0d96f 271 sbMode_duty = PRD_COUNT ; //during Playing
mimi3 0:9a5c2fb0d96f 272 }else{
mimi3 0:9a5c2fb0d96f 273 #if HAVE_LED_PAUSE_INDICATOR
mimi3 0:9a5c2fb0d96f 274 sbMode_duty = PAUSE_DUTY_MAX ;// during Pause
mimi3 0:9a5c2fb0d96f 275 #else
mimi3 0:9a5c2fb0d96f 276 sbMode_duty = 1;
mimi3 0:9a5c2fb0d96f 277 #endif
mimi3 0:9a5c2fb0d96f 278 }
mimi3 0:9a5c2fb0d96f 279 //--- duty control
mimi3 0:9a5c2fb0d96f 280 sbDuty = sbDuty + sbDir;
mimi3 0:9a5c2fb0d96f 281 if(sbDuty == sbMode_duty ){
mimi3 0:9a5c2fb0d96f 282 sbDir = -1;
mimi3 0:9a5c2fb0d96f 283 }
mimi3 0:9a5c2fb0d96f 284 if( sbDuty == 0){
mimi3 0:9a5c2fb0d96f 285 sbDir = 0;
mimi3 0:9a5c2fb0d96f 286 sbDuty = 1;
mimi3 0:9a5c2fb0d96f 287 bOff_delay = LED_OFF_DELAY_PAUSE ;// during pause
mimi3 0:9a5c2fb0d96f 288 if( fPlaying ){
mimi3 0:9a5c2fb0d96f 289 bOff_delay = LED_OFF_DELAY_PLAY ;// during play
mimi3 0:9a5c2fb0d96f 290 }
mimi3 0:9a5c2fb0d96f 291 }
mimi3 0:9a5c2fb0d96f 292 if( sbDir == 0 ){ //; wait for a while at LED OFF
mimi3 0:9a5c2fb0d96f 293 if( bOff_delay > 0 ){
mimi3 0:9a5c2fb0d96f 294 bOff_delay = bOff_delay - 1;
mimi3 0:9a5c2fb0d96f 295 }else{
mimi3 0:9a5c2fb0d96f 296 sbDir = 1;
mimi3 0:9a5c2fb0d96f 297 }
mimi3 0:9a5c2fb0d96f 298 }
mimi3 0:9a5c2fb0d96f 299 #endif
mimi3 0:9a5c2fb0d96f 300
mimi3 0:9a5c2fb0d96f 301 /*-------------------
mimi3 0:9a5c2fb0d96f 302 LED indicator 2 --- simple ON/OFF
mimi3 0:9a5c2fb0d96f 303 -------------------*/
mimi3 0:9a5c2fb0d96f 304 #if HAVE_LED_INDICATOR_2
mimi3 0:9a5c2fb0d96f 305 if (bTimeout_led == 0){
mimi3 0:9a5c2fb0d96f 306 if( fPlaying ){
mimi3 0:9a5c2fb0d96f 307 bTimeout_led = LED_PERIOD_PLAYNG ;// during Playing, on/off
mimi3 0:9a5c2fb0d96f 308 led = !led;
mimi3 0:9a5c2fb0d96f 309 }else{
mimi3 0:9a5c2fb0d96f 310 #if HAVE_LED_PAUSE_INDICATOR
mimi3 0:9a5c2fb0d96f 311 bTimeout_led = LED_PERIOD_PAUSING ;// during Pause, on/off
mimi3 0:9a5c2fb0d96f 312 led = !led;
mimi3 0:9a5c2fb0d96f 313 #else
mimi3 0:9a5c2fb0d96f 314 bTimeout_led = 1;
mimi3 0:9a5c2fb0d96f 315 led = 0;
mimi3 0:9a5c2fb0d96f 316 #endif
mimi3 0:9a5c2fb0d96f 317 }
mimi3 0:9a5c2fb0d96f 318 }
mimi3 0:9a5c2fb0d96f 319 bTimeout_led = bTimeout_led - 1;
mimi3 0:9a5c2fb0d96f 320 #endif
mimi3 0:9a5c2fb0d96f 321
mimi3 0:9a5c2fb0d96f 322 /*-------------------
mimi3 0:9a5c2fb0d96f 323 button sw input
mimi3 0:9a5c2fb0d96f 324 -------------------*/
mimi3 0:9a5c2fb0d96f 325 #if HAVE_BUTTON_SW
mimi3 0:9a5c2fb0d96f 326 if( btn_bit_prev ^ btn_bit_now) {
mimi3 0:9a5c2fb0d96f 327 if (btn_bit_now){ // ; 0 --> 1: btn released
mimi3 0:9a5c2fb0d96f 328 if( (wBtnLowCount > 10) && (wBtnLowCount < 130)){// ; 100msec < x < 1.3sec
mimi3 0:9a5c2fb0d96f 329 btn_short_on = true;
mimi3 0:9a5c2fb0d96f 330 }
mimi3 0:9a5c2fb0d96f 331 wBtnLowCount = 0;
mimi3 0:9a5c2fb0d96f 332 }
mimi3 0:9a5c2fb0d96f 333 }
mimi3 0:9a5c2fb0d96f 334 btn_bit_prev = btn_bit_now;
mimi3 0:9a5c2fb0d96f 335 if (btn_bit_now == false){
mimi3 0:9a5c2fb0d96f 336 wBtnLowCount = wBtnLowCount + 1;
mimi3 0:9a5c2fb0d96f 337 }
mimi3 0:9a5c2fb0d96f 338 //; recognized pause on
mimi3 0:9a5c2fb0d96f 339 if (wBtnLowCount > 120) { // ; 1.2sec >
mimi3 0:9a5c2fb0d96f 340 btn_long_on = true;
mimi3 0:9a5c2fb0d96f 341 }
mimi3 0:9a5c2fb0d96f 342 #if HAVE_POWER_OFF_MODE
mimi3 0:9a5c2fb0d96f 343 if (wBtnLowCount > 400){ //; 4sec >
mimi3 0:9a5c2fb0d96f 344 //; "long on2" is meaning go to sleep mode
mimi3 0:9a5c2fb0d96f 345 btn_long_on2 = true;
mimi3 0:9a5c2fb0d96f 346 }
mimi3 0:9a5c2fb0d96f 347 #endif
mimi3 0:9a5c2fb0d96f 348 #endif
mimi3 0:9a5c2fb0d96f 349 } //; [forever loop end]
mimi3 0:9a5c2fb0d96f 350 }
mimi3 0:9a5c2fb0d96f 351
mimi3 0:9a5c2fb0d96f 352