[libmaple] SDIO

Limited support for STM32F4 Discovery, Nucleo and custom F4 boards
stevestrong
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Location: Munich, Germany
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Re: [libmaple] SDIO

Post by stevestrong » Thu Sep 13, 2018 9:39 am

This is why sdio 1 line mode doesn't make too much sense.

If there is an SD slot on board connected to SDIO lines, use that in SDIO_4 mode.
Otherwise use SPI 1 (@42MHz) for max performance.

flyboy74
Posts: 231
Joined: Wed Jun 13, 2018 11:02 am

Re: [libmaple] SDIO

Post by flyboy74 » Thu Sep 13, 2018 9:48 am

Certainly the only advantage is if you weren't using any other SPI devices then it would save u 1 pin the CS pin.

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