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4 bit SDIO doesn't work although 1 bit SDIO works SDCARD

Question asked by piet t on Jan 18, 2018
Latest reply on Jan 31, 2018 by piet t

Hey everyone,

 

I have a quick question concerning the 4 bit sdio sdcard implementation. The 1 bit sdio seems to work perfectly. I have absolutely no issues, although when implementing 4 bit it completely bugs out. Are there any lower level files that the 4 bit uses that the 1 bit doesn't? According to me they should use the same lower level functions and therefore both should work? My question is pretty much do they use the same lower level functions or are there separate functions for each implementation..?

 

Thanks in advance

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