Hiroshi SAKAMOTO
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