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为什么无法初始化SD卡?用的都是库文件,为什么?为什么?

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yygy3748 提问时间:2017-3-22 16:42 /
为什么无法初始化SD卡?用的都是库文件,为什么?为什么?为什么?单片机是STM32F407,代码没带操作系统没上文件系统,只是进行初始化都不行,用的都是库中的代码
收藏 1 评论27 发布时间:2017-3-22 16:42

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yygy3748 回答时间:2017-3-22 16:43:06
本帖最后由 yygy3748 于 2017-3-23 15:40 编辑

https://www.stmcu.org.cn/faq/index/detail/id-70858
yygy3748 回答时间:2017-3-22 16:46:58
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回答时间:2017-3-22 17:02:48
楼主不要着急,慢慢来顺 一下。确定使用的SDIO或者SPI初始化正确,最好是把代码传上来,还有说明硬件使用的接口等等。如果初始化过不去,很可能是接口初始化问题,或者底层的驱动没有接入正确的接口中。
suoma 回答时间:2017-3-22 22:00:03
SPI还是SDIO方式?
yygy3748 回答时间:2017-3-23 15:49:22
suoma 发表于 2017-3-22 22:00
SPI还是SDIO方式?

公司的电脑不知什么原因,上传不了附件。用SDIO,用原子的STM32F407的     实验38 SD卡实验     代码测试也初始化不成功,用STM32CubeMX生成的代码也不行,卡是金士顿 8G Class 4的TF卡,但相同的程序用很多年前买的一张512MB的卡,却可以初始化,并能正常读写数数;两个程序对512MB的卡都能正常操作(初始化、读写操作)。但公司要求产品必须能识别8G或16G的卡,你说会不会是卡的问题?但金士顿 8G Class 4的TF卡是前几天在JD上买的。都卡在这里拖了一周了本来还想在三月份把产品搞定的,又得延期了
yygy3748 回答时间:2017-3-23 15:50:15
安 发表于 2017-3-22 17:02
楼主不要着急,慢慢来顺 一下。确定使用的SDIO或者SPI初始化正确,最好是把代码传上来,还有说明硬件使用的 ...

公司的电脑不知什么原因,上传不了附件。用SDIO,用原子的STM32F407的     实验38 SD卡实验     代码测试也初始化不成功,用STM32CubeMX生成的代码也不行,卡是金士顿 8G Class 4的TF卡,但相同的程序用很多年前买的一张512MB的卡,却可以初始化,并能正常读写数数;两个程序对512MB的卡都能正常操作(初始化、读写操作)。但公司要求产品必须能识别8G或16G的卡,你说会不会是卡的问题?但金士顿 8G Class 4的TF卡是前几天在JD上买的。都卡在这里拖了一周了本来还想在三月份把产品搞定的,又得延期了
回答时间:2017-3-23 15:51:36
修改一下驱动,你看一下初始化时,对于4G以上和4G以下代码的处理。
yygy3748 回答时间:2017-3-23 15:54:52
安 发表于 2017-3-23 15:51
修改一下驱动,你看一下初始化时,对于4G以上和4G以下代码的处理。

这是个好思路,我去看一下,你有没有空帮我看一下代码?
回答时间:2017-3-23 16:07:06
你把SD卡初始化的代码传上来,大家一块看看。
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