Redirecting SDHC1 Pins on SAME51N20A

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Red_Kite
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Posted by Red_Kite: Mon. Apr 4, 2022 - 12:20 PM
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Hi all,

 

I made a custom pcb with the SAME51N20A and connected the sd card slot with SDHC1 pins of the mcu.

Now i recognized, that the SAME51N20A only has SDHC0 as a peripheral (the manual of the mcu isn't very clear about that) and thus i connected the wrong pins.

Its just an prototype pcb but is it possible to redirect the SDHC1 pins to the internally SDHC0 host controller via software?

 

Thanks!

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Atmel SMART ARM-based MCUs and MPUs, Atmel Cortex-M MCUs
Last Edited: Tue. Apr 5, 2022 - 06:34 AM
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moonie223
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Posted by moonie223: Tue. Apr 5, 2022 - 12:45 AM
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Not that I've found, and I'd love to so I can use both QSPI and SDIO without going to a much larger SAME54. One always gets stuck in standard SPI, unfortunately.

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Red_Kite
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Posted by Red_Kite: Tue. Apr 5, 2022 - 06:43 AM
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Hi moonie223,

 

thanks to your response, I just noticed that QSPI isn't possible anymore with SDIO.

I thought I can use other Pins for QSPI.

Then I also have to use standard SPI -.-

 

Maybe it is easier to switch to the SAME54, before doing a major rework.

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