AnsweredAssumed Answered

maximum read/write speed with SDHC controller

Question asked by Sascha Ehlers on Nov 4, 2011
Latest reply on Aug 6, 2012 by emilien

Hello all,

i experiment with the SDHC controller on the K60.

K60 runs with 100 MHz and SDHC controller with maximum speed (50MHz).


I am using a normal sd card (2gb) in 4 bit mode.

My file system is fatfs..


My max. write speed is 10240 Byte in ~ 59ms..

My max. read speed is 10240 Byte in ~12ms.. (withouf fs ~9ms)


That are about 173,5 kByte / s writing and

853,3 kByte / s reading ..


what are your values?

i can't believe that this is the maximum ..