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.

pwm_lib.h@21:dc161a192ba7, 2020-10-09 (annotated)

Committer:
mimi3
Date:
Fri Oct 09 07:47:36 2020 +0900
Revision:
21:dc161a192ba7
Parent:
0:9a5c2fb0d96f 
trivial change

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mimi3 0:9a5c2fb0d96f 1 #ifndef __PWM_LIB_H__
mimi3 0:9a5c2fb0d96f 2 #define __PWM_LIB_H__
mimi3 0:9a5c2fb0d96f 3
mimi3 0:9a5c2fb0d96f 4 #include "sys.h"
mimi3 0:9a5c2fb0d96f 5 #include "FastPWM.h"
mimi3 0:9a5c2fb0d96f 6
mimi3 0:9a5c2fb0d96f 7 /*
mimi3 0:9a5c2fb0d96f 8 * PWM Timer interrupt module
mimi3 0:9a5c2fb0d96f 9 * */
mimi3 0:9a5c2fb0d96f 10 #if defined(TIM3)
mimi3 0:9a5c2fb0d96f 11 # define TIM_PWM TIM3
mimi3 0:9a5c2fb0d96f 12 # define TIM_PWM_IRQ TIM3_IRQn
mimi3 0:9a5c2fb0d96f 13 #else
mimi3 0:9a5c2fb0d96f 14 # error Edit this file properly !
mimi3 0:9a5c2fb0d96f 15 #endif
mimi3 0:9a5c2fb0d96f 16
mimi3 0:9a5c2fb0d96f 17 #define TPWM FastPWM
mimi3 0:9a5c2fb0d96f 18 //#define TPWM PwmOut
mimi3 0:9a5c2fb0d96f 19 #define PWM_TIMER_PRE_SCALE 1
mimi3 0:9a5c2fb0d96f 20 #define pwm_dutyL_hi(m) pwmLeftHi.pulsewidth_ticks( m );
mimi3 0:9a5c2fb0d96f 21 #define pwm_dutyR_hi(m) pwmRightHi.pulsewidth_ticks( m );
mimi3 0:9a5c2fb0d96f 22 #define pwm_dutyL_low(m) pwmLeftLow.pulsewidth_ticks( m );
mimi3 0:9a5c2fb0d96f 23 #define pwm_dutyR_low(m) pwmRightLow.pulsewidth_ticks( m );
mimi3 0:9a5c2fb0d96f 24
mimi3 0:9a5c2fb0d96f 25 // Use PWM3-1,PWM3-2 with TIM3
mimi3 0:9a5c2fb0d96f 26 #define PWM_PORT_LEFT_HI PB_5 // TIM3_CH2
mimi3 0:9a5c2fb0d96f 27 #define PWM_PORT_RIGHT_HI PB_4 // TIM3_CH1
mimi3 0:9a5c2fb0d96f 28 // Use PWM3-3,PWM3-4 with TIM3
mimi3 0:9a5c2fb0d96f 29 #define PWM_PORT_LEFT_LOW PC_9 // TIM3_CH4
mimi3 0:9a5c2fb0d96f 30 #define PWM_PORT_RIGHT_LOW PC_8 // TIM3_CH3
mimi3 0:9a5c2fb0d96f 31
mimi3 0:9a5c2fb0d96f 32 /*
mimi3 0:9a5c2fb0d96f 33 * Timer and Interrupt definitions
mimi3 0:9a5c2fb0d96f 34 * */
mimi3 0:9a5c2fb0d96f 35 #define periodTimerIntrStart() __HAL_TIM_ENABLE_IT( &TimHandle_pwm, TIM_IT_UPDATE )
mimi3 0:9a5c2fb0d96f 36 #define periodTimerIntrStop() __HAL_TIM_DISABLE_IT( &TimHandle_pwm, TIM_IT_UPDATE )
mimi3 0:9a5c2fb0d96f 37 #define periodTimerIntrClear() __HAL_TIM_CLEAR_FLAG( &TimHandle_pwm, TIM_FLAG_UPDATE)
mimi3 0:9a5c2fb0d96f 38 #define pwmPeriodIntrEnable() NVIC_EnableIRQ( TIM_PWM_IRQ )
mimi3 0:9a5c2fb0d96f 39 #define pwmPeriodIntrDisable() NVIC_DisableIRQ( TIM_PWM_IRQ )
mimi3 0:9a5c2fb0d96f 40
mimi3 0:9a5c2fb0d96f 41 extern TPWM pwmLeftHi,pwmRightHi;
mimi3 0:9a5c2fb0d96f 42 extern TPWM pwmLeftLow,pwmRightLow;
mimi3 0:9a5c2fb0d96f 43 extern uint8_t gPcmShifNum;
mimi3 0:9a5c2fb0d96f 44 void setPwmPeriod(int);
mimi3 0:9a5c2fb0d96f 45 uint8_t calcPcmValidBits( void );
mimi3 0:9a5c2fb0d96f 46
mimi3 0:9a5c2fb0d96f 47 void pwm_period_timer_start();
mimi3 0:9a5c2fb0d96f 48 void pwm_period_timer_stop();
mimi3 0:9a5c2fb0d96f 49 void pwm_init() ;
mimi3 0:9a5c2fb0d96f 50 #endif /* __PWM_LIB_H__ */
mimi3 0:9a5c2fb0d96f 51
mimi3 0:9a5c2fb0d96f 52