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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html><head> <title></title> <link rel="stylesheet" media="screen" type="text/css" href="./style.css" /> <link rel="stylesheet" media="screen" type="text/css" href="./design.css" /> <link rel="stylesheet" media="print" type="text/css" href="./print.css" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /></head><body><a href=start.html>start</a></br><div class="toc"><div class="tocheader toctoggle" id="toc__header">Table of Contents</div><div id="toc__inside"><ul class="toc"><li class="clear"><ul class="toc"><li class="level2"><div class="li"><span class="li"><a href="#ad73311l_audio_codec_card" class="toc">AD73311L Audio Codec Card</a></span></div><ul class="toc"><li class="level3"><div class="li"><span class="li"><a href="#description" class="toc">Description</a></span></div></li></ul></li><li class="level2"><div class="li"><span class="li"><a href="#adding_kernel_support" class="toc">Adding Kernel Support</a></span></div></li><li class="level2"><div class="li"><span class="li"><a href="#jumpers_setting_on_ad73311_card" class="toc">Jumpers setting on AD73311 Card</a></span></div><ul class="toc"><li class="level3"><div class="li"><span class="li"><a href="#settings_for_bf533-stamp" class="toc">Settings for BF533-STAMP</a></span></div></li><li class="level3"><div class="li"><span class="li"><a href="#settings_for_bf537-stamp" class="toc">Settings for BF537-STAMP</a></span></div></li></ul></li></ul></li></ul></div></div><h2><a name="ad73311l_audio_codec_card" id="ad73311l_audio_codec_card">AD73311L Audio Codec Card</a></h2><div class="level2"></div><!-- SECTION [1-37] --><h3><a name="description" id="description">Description</a></h3><div class="level3"><p> This daughter card implements both digital and analog audio input and output. It is based on the AD73311L chipset from Analog Devices. One mono input and one mono output are provided. This daughter card connects to the STAMP board via the Serial Port Controller Interface (SPORT0 or SPORT1) connector. </p><p>It features a 16-bit A/D conversion channel and a 16-bit D/A conversion channel. The sampling rates are grogrammable.</p><p>The AD73311L audio codec’s internal configuration registers are configured using the processor’s SPORT ports. <a href="http://www.analog.com/UploadedFiles/Data_Sheets/76229755AD73311L_a.pdf" class="urlextern" title="http://www.analog.com/UploadedFiles/Data_Sheets/76229755AD73311L_a.pdf" rel="nofollow">Datasheet</a> is here. </p></div><!-- SECTION [38-690] --><h2><a name="adding_kernel_support" id="adding_kernel_support">Adding Kernel Support</a></h2><div class="level2"><p> To add support for the AD73311 to the kernel build system, a few things must be enabled properly for things to work.</p><pre class="code"> Linux Kernel Configuration Sound ---> [*] Sound card support Advanced Linux Sound Architecture ---> [ ] OSS Sequencer API [*] OSS Mixer API [*] OSS PCM (digital audio) API ALSA Blackfin devices ---> <*> AD73311L Audio support for BF53x (0) Blackfin Audio SPORT port (4) PF pin for AD73311L Chip Select</pre><p>You can also set audio driver to module mode as its default, then the file uClinux-dist/vendors/AnalogDevices/BF533-STAMP/modprobe.conf or uClinux-dist/vendors/AnalogDevices/BF537-STAMP/modprobe.conf need to be modified. Just replace all ad1836 with ad73311.</p></div><!-- SECTION [691-1515] --><h2><a name="jumpers_setting_on_ad73311_card" id="jumpers_setting_on_ad73311_card">Jumpers setting on AD73311 Card</a></h2><div class="level2"><p>Set J2 to choose a PF pin as chip select for AD73311. Because the SPORT connecter on BF533 stamp board and BF537 stamp board have different PF pin defined, the jumper setting is different for them. The jumper setting should correspond to the PF pin setting in kernel configuration.</p></div><!-- SECTION [1516-1843] --><h3><a name="settings_for_bf533-stamp" id="settings_for_bf533-stamp">Settings for BF533-STAMP</a></h3><div class="level3"><table class="inline"> <tr> <th> PF pin </th><th> Jumpers to setting </th> </tr> <tr> <td> PF1 </td><td> 3-4 </td> </tr> <tr> <td> PF2 </td><td> 5-6 </td> </tr> <tr> <td> PF3 </td><td> 7-8 </td> </tr> <tr> <td> PF4 </td><td> 9-10 </td> </tr> <tr> <td> PF5 </td><td> 11-12 </td> </tr> <tr> <td> PF6 </td><td> 13-14 </td> </tr> <tr> <td> PF7 </td><td> 15-16 </td> </tr></table><br /></div><!-- SECTION [1844-2017] --><h3><a name="settings_for_bf537-stamp" id="settings_for_bf537-stamp">Settings for BF537-STAMP</a></h3><div class="level3"><table class="inline"> <tr> <th> PF pin </th><th>Jumpers to setting </th> </tr> <tr> <td> PF4 </td><td> 13-14 </td> </tr> <tr> <td> PF5 </td><td> 11-12 </td> </tr> <tr> <td> PF6 </td><td> 9-10 </td> </tr> <tr> <td> PF10 </td><td> 3-4 </td> </tr> <tr> <td> PF14 </td><td> 1-2 </td> </tr></table><br /><p>Other PF pins are not supported</p></div><!-- SECTION [2018-] --></body></html>⌨️ 快捷键说明
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