【RT-Thread创新应用设计大赛】AB32VG1评估板-2.SD卡audio播放

ti

1.sd卡配置
1）确保sd卡跳线正确短接

2）

2.audio 配置
1）rt-setting 依次添加multibutton、wavplayer、optoarse 三个软件包
wavplayer 添加后，optoarse 自动会添加

开启 dfs 的时候会默认开启 posix 的使能，需要 关闭 posix 的使能 ，否则终端的输入会有问题

使能audio设备

wavplay 设置

使能 flash 只读，如果不勾选发现音频会有卡顿

3.添加代码参考 https://ab32vg1-example.readthed ... wav_player_rom.html
这里是直接使用sd 卡(mnt.c 内默认挂载sd卡 elm

void sd_mount(void *parameter)
{
while (1)
{
rt_thread_mdelay(500);
if(rt_device_find("sd0") != RT_NULL)
{
if (dfs_mount("sd0", "/", "elm", 0, 0) == RT_EOK)
{
LOG_I("sd card mount to '/'");
break;
}
else
{
LOG_W("sd card mount to '/' failed!");
}
}
}
}

复制代码

所以我sd卡内直接放入1.WAV 2.WAV 3.WAV
修改table 数组

#include
#include
#include "board.h"
#include
#include "wavplayer.h"
#define BUTTON_PIN_0 rt_pin_get("PF.0")
#define BUTTON_PIN_1 rt_pin_get("PF.1")
#define NUM_OF_SONGS (3u)
static struct button btn_0;
static struct button btn_1;
static uint32_t cnt_0 = 0;
static uint32_t cnt_1 = 0;
#if 0
static char *table[2] =
{
"wav_1.wav",
"wav_2.wav",
};
#else
static char *table[] =
{
"1.wav",
"2.wav",
"3.wav",
};
#endif
void saia_channels_set(uint8_t channels);
void saia_volume_set(rt_uint8_t volume);
uint8_t saia_volume_get(void);
static uint8_t button_read_pin_0(void)
{
return rt_pin_read(BUTTON_PIN_0);
}
static uint8_t button_read_pin_1(void)
{
return rt_pin_read(BUTTON_PIN_1);
}
static void button_0_callback(void *btn)
{
uint32_t btn_event_val;
btn_event_val = get_button_event((struct button *)btn);
switch(btn_event_val)
{
case SINGLE_CLICK:
if (cnt_0 == 1) {
saia_volume_set(5);
}else if (cnt_0 == 2) {
saia_volume_set(10);
}else {
saia_volume_set(15);
cnt_0 = 0;
}
cnt_0++;
rt_kprintf("vol=%dn", saia_volume_get());
rt_kprintf("button 0 single clickn");
break;
case DOUBLE_CLICK:
if (cnt_0 == 1) {
saia_channels_set(1);
}else {
saia_channels_set(2);
cnt_0 = 0;
}
cnt_0++;
rt_kprintf("button 0 double clickn");
break;
case LONG_PRESS_START:
rt_kprintf("button 0 long press startn");
break;
case LONG_PRESS_HOLD:
rt_kprintf("button 0 long press holdn");
break;
}
}
static void button_1_callback(void *btn)
{
uint32_t btn_event_val;
btn_event_val = get_button_event((struct button *)btn);
switch(btn_event_val)
{
case SINGLE_CLICK:
wavplayer_play(table[(cnt_1++) % NUM_OF_SONGS]);
rt_kprintf("button 1 single clickn");
break;
case DOUBLE_CLICK:
rt_kprintf("button 1 double clickn");
break;
case LONG_PRESS_START:
rt_kprintf("button 1 long press startn");
break;
case LONG_PRESS_HOLD:
rt_kprintf("button 1 long press holdn");
break;
}
}
static void btn_thread_entry(void* p)
{
while(1)
{
/* 5ms */
rt_thread_delay(RT_TICK_PER_SECOND/200);
button_ticks();
}
}
static int multi_button_test(void)
{
rt_thread_t thread = RT_NULL;
/* Create background ticks thread */
thread = rt_thread_create("btn", btn_thread_entry, RT_NULL, 1024, 10, 10);
if(thread == RT_NULL)
{
return RT_ERROR;
}
rt_thread_startup(thread);
/* low level drive */
rt_pin_mode (BUTTON_PIN_0, PIN_MODE_INPUT_PULLUP);
button_init (&btn_0, button_read_pin_0, PIN_LOW);
button_attach(&btn_0, SINGLE_CLICK, button_0_callback);
button_attach(&btn_0, DOUBLE_CLICK, button_0_callback);
button_attach(&btn_0, LONG_PRESS_START, button_0_callback);
button_attach(&btn_0, LONG_PRESS_HOLD, button_0_callback);
button_start (&btn_0);
rt_pin_mode (BUTTON_PIN_1, PIN_MODE_INPUT_PULLUP);
button_init (&btn_1, button_read_pin_1, PIN_LOW);
button_attach(&btn_1, SINGLE_CLICK, button_1_callback);
button_attach(&btn_1, DOUBLE_CLICK, button_1_callback);
button_attach(&btn_1, LONG_PRESS_START, button_1_callback);
button_attach(&btn_1, LONG_PRESS_HOLD, button_1_callback);
button_start (&btn_1);
return RT_EOK;
}
INIT_APP_EXPORT(multi_button_test);

复制代码

总结：
1.发现修改音量后，再切换歌曲，音量又变成默认值
2.没有播放暂停功能
3.没有sd 卡wav 文件扫描功能
4.没有显示功能

后续针对几个改善点进行完善

辛书伟 · 2021-10-8 23:16:46

自己沙发自己站

洒下墨色 · 2021-10-9 13:52:05

赞一个，这么快就上手了

dianzi · 2021-10-11 16:22:02

爱与友人 · 2021-10-13 11:24:50

必须赞一个，感谢分享这么好文章

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