Ryo Hagimoto / Mbed OS RZ_A2M_Mbed_samples_20201012

GR-MANGO sample using mbed-os library from my repository.

Dependencies:   mbed-http

sample_programs/sample_05_spdif_wav_playback.cpp@0:b4c1e32627f2, 2020-10-12 (annotated)

Committer:
RyoheiHagimoto
Date:
Mon Oct 12 02:25:49 2020 +0000
Revision:
0:b4c1e32627f2
replaced mbed-os library

Who changed what in which revision?

UserRevisionLine numberNew contents of line
RyoheiHagimoto 0:b4c1e32627f2 1 /*******************************************************************************
RyoheiHagimoto 0:b4c1e32627f2 2 * DISCLAIMER
RyoheiHagimoto 0:b4c1e32627f2 3 * This software is supplied by Renesas Electronics Corporation and is only
RyoheiHagimoto 0:b4c1e32627f2 4 * intended for use with Renesas products. No other uses are authorized. This
RyoheiHagimoto 0:b4c1e32627f2 5 * software is owned by Renesas Electronics Corporation and is protected under
RyoheiHagimoto 0:b4c1e32627f2 6 * all applicable laws, including copyright laws.
RyoheiHagimoto 0:b4c1e32627f2 7 * THIS SOFTWARE IS PROVIDED "AS IS" AND RENESAS MAKES NO WARRANTIES REGARDING
RyoheiHagimoto 0:b4c1e32627f2 8 * THIS SOFTWARE, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING BUT NOT
RyoheiHagimoto 0:b4c1e32627f2 9 * LIMITED TO WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
RyoheiHagimoto 0:b4c1e32627f2 10 * AND NON-INFRINGEMENT. ALL SUCH WARRANTIES ARE EXPRESSLY DISCLAIMED.
RyoheiHagimoto 0:b4c1e32627f2 11 * TO THE MAXIMUM EXTENT PERMITTED NOT PROHIBITED BY LAW, NEITHER RENESAS
RyoheiHagimoto 0:b4c1e32627f2 12 * ELECTRONICS CORPORATION NOR ANY OF ITS AFFILIATED COMPANIES SHALL BE LIABLE
RyoheiHagimoto 0:b4c1e32627f2 13 * FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR
RyoheiHagimoto 0:b4c1e32627f2 14 * ANY REASON RELATED TO THIS SOFTWARE, EVEN IF RENESAS OR ITS AFFILIATES HAVE
RyoheiHagimoto 0:b4c1e32627f2 15 * BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
RyoheiHagimoto 0:b4c1e32627f2 16 * Renesas reserves the right, without notice, to make changes to this software
RyoheiHagimoto 0:b4c1e32627f2 17 * and to discontinue the availability of this software. By using this software,
RyoheiHagimoto 0:b4c1e32627f2 18 * you agree to the additional terms and conditions found by accessing the
RyoheiHagimoto 0:b4c1e32627f2 19 * following link:
RyoheiHagimoto 0:b4c1e32627f2 20 * http://www.renesas.com/disclaimer
RyoheiHagimoto 0:b4c1e32627f2 21 *
RyoheiHagimoto 0:b4c1e32627f2 22 * Copyright (C) 2019 Renesas Electronics Corporation. All rights reserved.
RyoheiHagimoto 0:b4c1e32627f2 23 *******************************************************************************/
RyoheiHagimoto 0:b4c1e32627f2 24 #include "sample_select.h"
RyoheiHagimoto 0:b4c1e32627f2 25
RyoheiHagimoto 0:b4c1e32627f2 26 #if (SAMPLE_PROGRAM_NO == 5)
RyoheiHagimoto 0:b4c1e32627f2 27 // SAMPLE_PROGRAM_NO 5 : SPDIF wav playback sample (use USB memory or SD card)
RyoheiHagimoto 0:b4c1e32627f2 28 //
RyoheiHagimoto 0:b4c1e32627f2 29 // This sample will play a ".wav" file of the SD root folder.
RyoheiHagimoto 0:b4c1e32627f2 30 // Wav file format : RIFF format, 1ch or 2ch, 44.1kHz, 16bits
RyoheiHagimoto 0:b4c1e32627f2 31 // In case of SAMPLE_PROGRAM_NO=5 :
RyoheiHagimoto 0:b4c1e32627f2 32 // Since TARGET_RZ_A2M_EVB has no connector and no suitable AUDIO_CLK has been entered, only pseudo-evaluation is executed.
RyoheiHagimoto 0:b4c1e32627f2 33 // - Audio data is output from the PC_5 terminal.
RyoheiHagimoto 0:b4c1e32627f2 34 // - Since AUDIO_CLK on the board is 11.2896 MHz, it operates at half the actual speed.
RyoheiHagimoto 0:b4c1e32627f2 35 // - The AUDIO_CLK frequency required is 512 times as large as the sample frequency for audio data.
RyoheiHagimoto 0:b4c1e32627f2 36 // (fs=44.1kHz : AUDIO_CLK=22.5792MHz, fs=48kHz : AUDIO_CLK=24.5760MHz)
RyoheiHagimoto 0:b4c1e32627f2 37
RyoheiHagimoto 0:b4c1e32627f2 38 #if !defined(TARGET_RZ_A2M_EVB)
RyoheiHagimoto 0:b4c1e32627f2 39 #error "SPDIF is not supported."
RyoheiHagimoto 0:b4c1e32627f2 40 #endif
RyoheiHagimoto 0:b4c1e32627f2 41
RyoheiHagimoto 0:b4c1e32627f2 42 #include "mbed.h"
RyoheiHagimoto 0:b4c1e32627f2 43 #include "FATFileSystem.h"
RyoheiHagimoto 0:b4c1e32627f2 44 #include "SdUsbConnect.h"
RyoheiHagimoto 0:b4c1e32627f2 45 #include "EasyPlayback.h"
RyoheiHagimoto 0:b4c1e32627f2 46 #include "EasyDec_WavCnv2ch.h"
RyoheiHagimoto 0:b4c1e32627f2 47
RyoheiHagimoto 0:b4c1e32627f2 48 static EasyPlayback AudioPlayer(EasyPlayback::AUDIO_TPYE_SPDIF);
RyoheiHagimoto 0:b4c1e32627f2 49
RyoheiHagimoto 0:b4c1e32627f2 50 #define FILE_NAME_LEN (64)
RyoheiHagimoto 0:b4c1e32627f2 51 #define MOUNT_NAME "storage"
RyoheiHagimoto 0:b4c1e32627f2 52
RyoheiHagimoto 0:b4c1e32627f2 53 static InterruptIn skip_btn(USER_BUTTON0);
RyoheiHagimoto 0:b4c1e32627f2 54
RyoheiHagimoto 0:b4c1e32627f2 55 static void skip_btn_fall(void) {
RyoheiHagimoto 0:b4c1e32627f2 56 AudioPlayer.skip();
RyoheiHagimoto 0:b4c1e32627f2 57 }
RyoheiHagimoto 0:b4c1e32627f2 58
RyoheiHagimoto 0:b4c1e32627f2 59 int main() {
RyoheiHagimoto 0:b4c1e32627f2 60 DIR * d;
RyoheiHagimoto 0:b4c1e32627f2 61 struct dirent * p;
RyoheiHagimoto 0:b4c1e32627f2 62 char file_path[sizeof("/" MOUNT_NAME "/") + FILE_NAME_LEN];
RyoheiHagimoto 0:b4c1e32627f2 63 SdUsbConnect storage(MOUNT_NAME);
RyoheiHagimoto 0:b4c1e32627f2 64
RyoheiHagimoto 0:b4c1e32627f2 65 // decoder setting
RyoheiHagimoto 0:b4c1e32627f2 66 AudioPlayer.add_decoder<EasyDec_WavCnv2ch>(".wav");
RyoheiHagimoto 0:b4c1e32627f2 67 AudioPlayer.add_decoder<EasyDec_WavCnv2ch>(".WAV");
RyoheiHagimoto 0:b4c1e32627f2 68
RyoheiHagimoto 0:b4c1e32627f2 69 // button setting
RyoheiHagimoto 0:b4c1e32627f2 70 skip_btn.fall(&skip_btn_fall);
RyoheiHagimoto 0:b4c1e32627f2 71
RyoheiHagimoto 0:b4c1e32627f2 72 while (1) {
RyoheiHagimoto 0:b4c1e32627f2 73 // connect wait
RyoheiHagimoto 0:b4c1e32627f2 74 storage.wait_connect();
RyoheiHagimoto 0:b4c1e32627f2 75
RyoheiHagimoto 0:b4c1e32627f2 76 // file search
RyoheiHagimoto 0:b4c1e32627f2 77 d = opendir("/" MOUNT_NAME "/");
RyoheiHagimoto 0:b4c1e32627f2 78 if (d != NULL) {
RyoheiHagimoto 0:b4c1e32627f2 79 while ((p = readdir(d)) != NULL) {
RyoheiHagimoto 0:b4c1e32627f2 80 size_t len = strlen(p->d_name);
RyoheiHagimoto 0:b4c1e32627f2 81 if (len < FILE_NAME_LEN) {
RyoheiHagimoto 0:b4c1e32627f2 82 // make file path
RyoheiHagimoto 0:b4c1e32627f2 83 sprintf(file_path, "/%s/%s", MOUNT_NAME, p->d_name);
RyoheiHagimoto 0:b4c1e32627f2 84 printf("%s\r\n", file_path);
RyoheiHagimoto 0:b4c1e32627f2 85
RyoheiHagimoto 0:b4c1e32627f2 86 // playback
RyoheiHagimoto 0:b4c1e32627f2 87 AudioPlayer.play(file_path);
RyoheiHagimoto 0:b4c1e32627f2 88 }
RyoheiHagimoto 0:b4c1e32627f2 89 }
RyoheiHagimoto 0:b4c1e32627f2 90 closedir(d);
RyoheiHagimoto 0:b4c1e32627f2 91 }
RyoheiHagimoto 0:b4c1e32627f2 92 }
RyoheiHagimoto 0:b4c1e32627f2 93 }
RyoheiHagimoto 0:b4c1e32627f2 94
RyoheiHagimoto 0:b4c1e32627f2 95 #endif