Hiroshi SAKAMOTO / Mbed 2 deprecated _test_SDHCFileSystem

Test program for SDHCFileSystem performance test.

Dependencies:   FatFileSystem mbed

Fork of SDHCFileSystem by Klaus Bu

SDHCFileSystem performance test.

Using SDHCFileSystem/FatFileSystem via fopen()/fwrite()/fclose() . With simple code of reading/writing (fgets()/fputs()) text file.

in performance test of fwrite()

  • File size is changeable
  • Block size is changeable
  • SPI Frequency of SDHCFileSytesm is changeable

You can change SPI Frequency by changing the SDHC_SPI_FREQUENCY in SDHCFileSystem.h

// spi frequency (Hz) 100000->100kHz
#define SDHC_SPI_FREQUENCY 2000000

performance test funcion

in main.cpp

void speedtest(char *path, int totallen, int blocklen, bool unlinkfile);
path
full path of the file
totallen
total length (byte) of test data
blocklen
length (byte) of the data writing once by fwrite()
unlinkfile
true->remove the file as ending this function

mbed.bld@1:f69b56cac865, 2013-02-14 (annotated)

Committer:
hayashiisme
Date:
Thu Feb 14 02:07:38 2013 +0000
Revision:
1:f69b56cac865
Parent:
0:90601632692f 
Commit for publishing

Who changed what in which revision?

UserRevisionLine numberNew contents of line
xxll 0:90601632692f 1 http://mbed.org/users/mbed_official/code/mbed/builds/9114680c05da