add: 提交音频demo

module/Air8000/demo/audio/main.lua

@@ -0,0 +1,125 @@
+
+-- LuaTools需要PROJECT和VERSION这两个信息
+PROJECT = "audio"
+VERSION = "1.0.0"
+
+--[[
+本demo可直接在Air8000整机开发板上运行
+]]
+
+-- sys库是标配
+_G.sys = require("sys")
+_G.sysplus = require("sysplus")
+
+gpio.setup(24, 1, gpio.PULLUP)          -- i2c工作的电压域
+
+
+local i2c_id = 0            -- i2c_id 0
+
+local pa_pin = 16           -- 喇叭pa功放脚
+local power_pin = 8         -- es8311电源脚
+
+local i2s_id = 0            -- i2s_id 0
+local i2s_mode = 0          -- i2s模式 0 主机 1 从机
+local i2s_sample_rate = 16000   -- 采样率
+local i2s_bits_per_sample = 16  -- 数据位数
+local i2s_channel_format = i2s.MONO_R   -- 声道, 0 左声道, 1 右声道, 2 立体声
+local i2s_communication_format = i2s.MODE_LSB   -- 格式, 可选MODE_I2S, MODE_LSB, MODE_MSB
+local i2s_channel_bits = 16     -- 声道的BCLK数量
+
+local multimedia_id = 0         -- 音频通道 0
+local pa_on_level = 1           -- PA打开电平 1 高电平 0 低电平
+local power_delay = 3           -- 在DAC启动前插入的冗余时间，单位100ms
+local pa_delay = 100            -- 在DAC启动后，延迟多长时间打开PA，单位1ms
+local power_on_level = 1        -- 电源控制IO的电平，默认拉高
+local power_time_delay = 100    -- 音频播放完毕时，PA与DAC关闭的时间间隔，单位1ms
+
+local voice_vol = 50        -- 喇叭音量
+local mic_vol = 80          -- 麦克风音量
+
+function audio_setup()
+    pm.power(pm.LDO_CTL, false)  --开发板上ES8311由LDO_CTL控制上下电
+    sys.wait(100)
+    pm.power(pm.LDO_CTL, true)  --开发板上ES8311由LDO_CTL控制上下电
+
+    i2c.setup(i2c_id,i2c.FAST)      --设置i2c
+    i2s.setup(i2s_id, i2s_mode, i2s_sample_rate, i2s_bits_per_sample, i2s_channel_format, i2s_communication_format,i2s_channel_bits)    --设置i2s
+
+    audio.config(multimedia_id, pa_pin, pa_on_level, power_delay, pa_delay, power_pin, power_on_level, power_time_delay)
+    audio.setBus(multimedia_id, audio.BUS_I2S,{chip = "es8311",i2cid = i2c_id , i2sid = i2s_id, voltage = audio.VOLTAGE_1800})	--通道0的硬件输出通道设置为I2S
+
+    audio.vol(multimedia_id, voice_vol)
+    audio.micVol(multimedia_id, mic_vol)
+    sys.publish("AUDIO_READY")
+end
+
+-- 配置好audio外设
+sys.taskInit(audio_setup)
+
+local taskName = "task_audio"
+
+local MSG_MD = "moreData"   -- 播放缓存有空余
+local MSG_PD = "playDone"   -- 播放完成所有数据
+
+audio.on(0, function(id, event)
+    --使用play来播放文件时只有播放完成回调
+    local succ,stop,file_cnt = audio.getError(0)
+    if not succ then
+        if stop then
+            log.info("用户停止播放")
+        else
+            log.info("第", file_cnt, "个文件解码失败")
+        end
+    end
+    sysplus.sendMsg(taskName, MSG_PD)
+end)
+
+
+local function audio_task()
+    local result    
+    sys.waitUntil("AUDIO_READY")
+    while true do
+        log.info("开始播放")
+        result = audio.play(0,"/luadb/1.mp3")
+        if result then
+        --等待音频通道的回调消息，或者切换歌曲的消息
+            while true do
+                msg = sysplus.waitMsg(taskName, nil)
+                if type(msg) == 'table' then
+                    if msg[1] == MSG_PD then
+                        log.info("播放结束")
+                        break
+                    end
+                else
+                    log.error(type(msg), msg)
+                end
+            end
+        else
+            log.debug("解码失败!")
+            sys.wait(1000)
+        end
+        if not audio.isEnd(0) then
+            log.info("手动关闭")
+            audio.playStop(0)
+        end
+        if audio.pm then
+		    audio.pm(0,audio.STANDBY)       --PM模式 待机模式，PA断电，codec待机状态，系统不能进低功耗状态，如果PA不可控，codec进入静音模式
+        end
+		-- audio.pm(0,audio.SHUTDOWN)	--低功耗可以选择SHUTDOWN或者POWEROFF，如果codec无法断电用SHUTDOWN
+        log.info("mem", "sys", rtos.meminfo("sys"))
+        log.info("mem", "lua", rtos.meminfo("lua"))
+        sys.wait(1000)
+    end
+end
+
+sys.timerLoopStart(function()
+    log.info("mem.lua", rtos.meminfo())
+    log.info("mem.sys", rtos.meminfo("sys"))
+ end, 3000)
+
+sysplus.taskInitEx(audio_task, taskName)
+
+-- 用户代码已结束---------------------------------------------
+-- 结尾总是这一句
+sys.run()
+-- sys.run()之后后面不要加任何语句!!!!!