【K70例程】022I2S音频驱动_SGTL5000_SDHC_MQX_K70EKT7

只看该作者 · 2014-1-8 18:45

使用J-LinkV8
MDKKeil版本4.71
调试串口波特率：115200
基于MDKK70-EK_T70硬件平台
关键词: Freescale 飞思卡尔 Kinetis Cortex-M4 K70 MDKK70 核心板开发板例程 SGTL5000 SDHC MQX I2S

实验现象：
串口输出：
Setting up time......................[OK]
Initializing audio codec.............[OK]
Creating shell task..................[OK]
Creating SD card task................[OK]

Audio driver demo application

Shell (build: Dec  5 2013)
Copyright (c) 2008 Freescale Semiconductor;
shell>
shell>
  SD card installed to "a:"
shell>help
Available commands:
cd <directory>
del <file>
dir [<filespec>] [<attr>]]
exit
help [<command>]
mkdir <directory>
ren <oldname> <newname>
rmdir <directory>
play <device> <filename>
record <device> <filename> <format>
?
shell> dir
A.WAV       441044 12-06-2013 11:35:56    A A.WAV
BB.WAV       4399198 12-06-2013 14:17:12    A BB.WAV
shell> play sai: a:/bb.wav
  Playback information
  Sampling frequency:    22050 Hz
  Bit depth:             16 bits
  Channels:             mono
  Data rate:             44 kbyte/s
  ----------------------------------------------
  Playing a file...DONE
  ----------------------------------------------
  Playback stats
  Total interrupts:             549934
  Bytes requested for transmit:  4399154
  Bytes transmitted:          4399154
  Underruns of hardware FIFO: 0
  Software buffer empty:       39
  ----------------------------------------------
shell>

该K70音频例程基于MQX操作系统,仅支持wav文件播放，文件放置于SD/TF卡中并插到K70EK上，更多信息请参考MQX例程。