# SD卡裏面播放WAV文件應該選用什麽型號的IC？

**URL:** <https://forum.amebaiot.com/t/sd-wav-ic/2359>\
**Category:** Multimedia\
**Tags:** rtl8720cx, 中文\
**Created:** [October 28, 2023, 7:41am UTC](https://forum.amebaiot.com/t/sd-wav-ic/2359 "2023-10-28T07:41:39Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![lion-brave](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.amebaiot.com/lion-brave/32/1719_2.png) [@lion-brave](https://forum.amebaiot.com/u/lion-brave)\
**Post date:** [October 28, 2023, 7:41am UTC](https://forum.amebaiot.com/t/sd-wav-ic/2359/1 "2023-10-28T07:41:39Z")

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RTL8721DF 有i2s輸出功能，但是沒有SDIO接口。RTL8720系列沒有I2S輸出我到底應該選擇怎麽樣的IC呢

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**Author:** ![dakamaster](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.amebaiot.com/dakamaster/32/1744_2.png) [@dakamaster](https://forum.amebaiot.com/u/dakamaster)\
**Post date:** [October 30, 2023, 1:30am UTC](https://forum.amebaiot.com/t/sd-wav-ic/2359/2 "2023-10-30T01:30:13Z")

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您好，  
請問您打算使用Arduino環境做開發還是標準sdk環境做開發呢？還有，關於這兩顆芯片的硬體咨詢，請問您參考的網站是什麽呢？謝謝

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**Author:** ![lion-brave](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.amebaiot.com/lion-brave/32/1719_2.png) [@lion-brave](https://forum.amebaiot.com/u/lion-brave)\
**Post date:** [October 30, 2023, 3:42am UTC](https://forum.amebaiot.com/t/sd-wav-ic/2359/3 "2023-10-30T03:42:52Z")

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標準SDK，[www.realmcu.com/](http://www.realmcu.com/)

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**Author:** ![dakamaster](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.amebaiot.com/dakamaster/32/1744_2.png) [@dakamaster](https://forum.amebaiot.com/u/dakamaster)\
**Post date:** [November 1, 2023, 9:44am UTC](https://forum.amebaiot.com/t/sd-wav-ic/2359/4 "2023-11-01T09:44:19Z")

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realmcu 上拿到sdk一律配备FAE 支援你的问题，所以你可以直接问对接窗口而非开源平台。

开源平台这边只维护GitHub 释出版本的sdk。

至于你的问题 RTL8722DM 可以做到支援 SD 卡读取文件，范例参考：[FatfsSDIO – Read and open HTML file from SD card – Realtek IoT/Wi-Fi MCU Solutions](https://www.amebaiot.com/cn/amebad-arduino-fatfs-sdio/)