# \#sdh

**URL:** https://forum.amebaiot.com/tag/sdh/59.md

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## [有没有操作emmc的例程可供参考](https://forum.amebaiot.com/t/emmc/2129)

<div class="topic-metadata">

**Author:** [@oxygenben](https://forum.amebaiot.com/u/oxygenben)\
**Replies:** 12\
**Last updated:** [March 3, 2025, 2:44am UTC](https://forum.amebaiot.com/t/emmc/2129 "2025-03-03T02:44:17Z")

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使用的是Arduino3.0.6和RTL8722DM，没有看到关于emmc的相关例程。

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## [The hal\_sdhost\_init\_host() function is missing](https://forum.amebaiot.com/t/the-hal-sdhost-init-host-function-is-missing/2494)

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**Author:** [@gkirill](https://forum.amebaiot.com/u/gkirill)\
**Replies:** 1\
**Last updated:** [December 11, 2023, 3:04am UTC](https://forum.amebaiot.com/t/the-hal-sdhost-init-host-function-is-missing/2494 "2023-12-11T03:04:54Z")

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Hello! Im trying to create file on SD card with hal\_sdhost.h, but functions hal\_sdhost\_init\_host(), hal\_rtl\_sdhost\_init\_card() and other from hal\_sdhost.h not described (there is no .c file describing these functions ) i…