mi mi
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)
USER_BUTTON: PC_13(default button)
Next song: One click in Play mode.
Pause : Push long time .
Play : One click from Pause.
sys.h
- Committer:
- mimi3
- Date:
- 2020-10-09
- Revision:
- 21:dc161a192ba7
- Parent:
- 16:1bb81504b23b
File content as of revision 21:dc161a192ba7:
#ifndef __SYS_H__
#define __SYS_H__
#include <stdint.h>
#include <stdbool.h>
#include "mbed.h"
/* Selectable options depended on each situation.
* If a functionality is needed, the value should be set to 1.
* */
/*----------------------
-- Selectable Options
----------------------*/
#define PWM16BIT 1
#define DATA_8BIT_SUPPORT 1
#define HAVE_BUTTON_SW 1 // for 'Play','Pause','Power off'
/* Enable either the type of blink or dimmer */
#define HAVE_LED_IND_PWM 1 // blink LED during playing (750msec interval)
#define HAVE_LED_IND_BLINK 0 // dimmer LED during playing
/**********************/
#define HAVE_LED_PAUSE_INDICATOR 1 // blink or dimmer during pausing
#define HAVE_POWER_OFF_MODE 0 // under construction
//-- Select FAT32/FAT16 or FAT16 only
#define HAVE_FAT32 1 // 0: FAT16 only, 1: FAT16 and FAT32 support
//--- end option setting
// TEST PORT
#define TEST_PORT PA_8 // D7
// LED indicator
#define IND_LED PB_10
//-- debug purpose
#define UART_INFO 1
#define DEBUG_WAV_PLAYER 0
#define DEBUG_FAT_LIB 0
#define DEBUG_SD_CARD 0
#define TEST_PORT_ENABLE 1
//
#define HAVE_DIRECT_SPI 1
typedef uint16_t word;
typedef uint32_t dword;
typedef uint8_t byte;
typedef int8_t sbyte;
typedef bool sbit;
#ifdef __CC_ARM
# define OPT_SPEED /* N/A */
#else
# define OPT_SPEED __attribute__((optimize("O3")))
#endif
#endif /* __SYS_H__ */