Fast Data Logger

[joepasquariello]

5us to write 512 bytes. Excellent trick. What interface are you using?

SDIO for BUILTIN_SDCARD on T4.1. Nothing special.

 

[UhClem]

SDIO for BUILTIN_SDCARD on T4.1. Nothing special.

I thought that the SD library only did 50MHz for the SD clock. This is faster than that.

 

[joepasquariello]

Good question. With SdFat example bench, I see ~22 us as the fastest 512-byte write, but with SdFat example TeensySdioLogger, I see ~5 us. I'll look into it further.