![]() I try to modify the MTU of the connection, but do not obtain significant improvements. Speed is always higher under linux than Windows. In particular, I did not expect a decrease in write speed with the library SdFat (164 instead of 172)Īs I suspected the ethernet connection to be responsible, I decide to repeat those measurements under linux. The speed differences for both buffer sizes are stranger. The results are summarized in the following table (speed is in Kbyte/s)Īs expected, speed is always higher with SdFat than with FatFs. (value of FTP_BUF_SIZE in file FtpServer.h) I made the first series of measurements with the client FTP Rush on Windows 7 with two values ( 5) for the size of the buffer used for transferring the data. Today I corrected a little bug in the library and I did some speed measurements to compare the two libraries used to access the SD card.įor all measurements I use 6 files totaling 23 Mbytes. Version with FatFs don't work on Mega2560 because of insufficient Ram I have tested FtpServer on Arduino Due and Arduino Mega2560 In order to use SdFat you have to modify file SdFat/utility/iostream.h because endl is also defined in Streaming library. ![]() And read/write access to the card is about twice faster.Īn advantage of FatFs would be if you need to use extended characters. SdFat use less Ram and program occupy less memory. To select the library, modify the identifier FAT_SYST at beginning of file FtpServer.h FatFs module from ChaN with my library ( GitHub - gallegojm/Arduino-FatFs: Functions to wrap FatFs module developed by ChaN on Arduino platform).the new version of SdFat from William Greiman.You have the choice between two libraries to access the SD card: The new version now support long name files. The FTP Rush Server displays the following Connecting to Connecting to 192.168.1.111:21 The arduino COM ports displays the following Ftp server waiting for connection on port 21 I have modified EthernetServer.h, EthernetServer.cpp and iostream.h, the code compiles correctly. I am using arduino Due and W5100 shield and arduino-1.5.7. I have also disabled the firewall on the computer. I have connected in active and passive mode. FTP Rush then hangs and the only way I can get out of it, is to press CTRL-C. The server works correctly up to when I try to get a folder listing using FTP Rush. I’m trying to run this code but am running into difficulties when I connect to the FTP server, using FTP Rush.
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