This program is an example of of using the MSCUSBHost code with a raw build of ELM Chan Fat Fs. This was done to add both Long File Name Support along with proper time/date stamps (assuming you have a battery hooked up to keep time). This code exposes the Chan API (see main.cpp) and is NOT a c++ class: http://elm-chan.org/fsw/ff/00index_e.html The diskio.c file has the mapping needed to link the filesystem to the MSC stuff
main.cpp
00001 #include "mbed.h" 00002 #include "ff.h" 00003 00004 DigitalOut myled(LED1); 00005 Serial pc(USBTX, USBRX); 00006 00007 FATFS MyFileSystem; 00008 FIL MyFile; 00009 00010 int main() 00011 { 00012 unsigned int BytesWritten; 00013 00014 //mount the SD card (any drive number will map to the SD card) 00015 f_mount(0,&MyFileSystem); 00016 //Open the file for open and write 00017 f_open(&MyFile,"Test1.2.3.4.txt",FA_WRITE|FA_OPEN_ALWAYS); 00018 //Write some junk 00019 f_write(&MyFile,"Testing!\r\nTesting,1,2,3\r\n",27,&BytesWritten); 00020 //Close the file 00021 f_close(&MyFile); 00022 00023 while(1) 00024 { 00025 pc.printf("all done!!\r\n"); 00026 wait(1); 00027 myled = !myled; 00028 } 00029 }
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Eli Hughes