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

History

Commit for publishing default tip

2013-02-14, by hayashiisme [Thu, 14 Feb 2013 02:07:38 +0000] rev 1

Commit for publishing

2010-07-24, by xxll [Sat, 24 Jul 2010 19:45:29 +0000] rev 0