SD Card Write Speed Patterns

Just a note, I ran the SdFat library SdFormatter example sketch on my 32GB Sandisk Extreme, and I noticed that after the erase, it says "All data set to 0x00".

Card size: 31.91 GB (GB = 1E9 bytes)
Card size: 29.72 GiB (GiB = 2^30 bytes)
Card will be formated FAT32

Options are:
E - erase the card and skip formatting.
F - erase and then format the card. (recommended)
Q - quick format the card without erase.

Enter option: F

Erasing
................................................................
................................................................
................................................................
..............................................
All data set to 0x00
Erase done
Writing FAT ................................
Format Done
Run the SdInfo example for format details.
Click to expand...
 
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