Hi, Could anyone give me source code example to implement FAT16/32 file system on a MMC card? I used Atmega32. Thanks!
FAT16/32 system on a MMC card
Started by ●November 8, 2004
Reply by ●November 8, 20042004-11-08
"terry" <leonlai2k@yahoo.com> skrev i meddelandet news:9904d48.0411072008.2ea79121@posting.google.com...> Hi, > > Could anyone give me source code example to implement FAT16/32 file > system on a MMC card? I used Atmega32. > > Thanks!Check out www.AVRfreaks.net. There is someone there that will sell you FAT code for accessing an SDcard for $139. Sounds like a bargain to me. -- Best Regards, Ulf Samuelsson ulf@a-t-m-e-l.com This is a personal view which may or may not be share by my Employer Atmel Nordic AB
Reply by ●November 10, 20042004-11-10
Hi Terry, Take a look at the various MP3 player projects on the net. I'm sure you will find one with a filesystem that can be adapted to MMC. If you get really stuck, ask me about my FAT16 Compact Flash filesystem in C. You will have to write your own low level MMC routines, but expect a major time saving over starting from scratch. Regards, Murray R. Van Luyn. "terry" <leonlai2k@yahoo.com> wrote in message news:9904d48.0411072008.2ea79121@posting.google.com...> Hi, > > Could anyone give me source code example to implement FAT16/32 file > system on a MMC card? I used Atmega32. > > Thanks!
Reply by ●November 11, 20042004-11-11
http://www.prllc.com Description FlashFile is a source code package designed to give MSDOS compatibility to your embedded application using SD/MMC memory modules! Standard C library functions such as fopen, fclose, fcreate, fread, frwrite, fgetc, fputc, and others allow easy access to data stored on an SD/MMC card by a PC as well as an easy method of creating and maintaining data from your embedded application that can be easily accessed by a PC. Both FAT12, and FAT16 formats are supported. The FlashFileSD library utilizes the SPI bus of the Atmel AVR Processor as the connection to the SD/MMC memory device.. Features: -Complete CodeVisionAVR, ImageCraft, and IAR-EWAVR project packages with an example programs -Designed specifically for CodeVisionAVR, ImageCraft, and the Atmel AVR -Utilizes the SPI channel of the AVR -Ready for use with the Mega128-Net Development Board -Simple setup configuration through #define macros -- Best Regards, Ulf Samuelsson ulf@a-t-m-e-l.com This is a personal view which may or may not be share by my Employer Atmel Nordic AB
Reply by ●November 12, 20042004-11-12
Look at the Dave Dunfield Dos Compatible Minimal File system source at ftp://ftp.dunfield.com/embedpc.zip you may be able to port it to your target. Vincent
Reply by ●December 16, 20042004-12-16
Hi, the company I work for is selling modules, which read and write to Compact Flash Memory Cards over a RS232 line. The FAT file system is 'on board' so you don't have to worry about it. You can read and write files by using simple "AT+" commands over the serial line. Very simple to use. Check out: www.avisaro.com - or contact me if you need a English speaking person. Matthias Avisaro AG
