When I use the E command to erase, it says it's erasing, and gives me two dots on the line below, but then examining the card with HxD, all kinds of ghost stuff is left. The card is a small 256MB microSD. I'm using an 8MHz Pro Mini powered with 5V, and the SD module is the standard version with v…

SdFat's SDformatter example doesn't erase card

ua6em September 28, 2025, 12:06am 2

Erasing only removes records from the table. There is no physical destruction of data.

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