Micro sd interface with pic18f

[manisha]

Haiiiiiiiii,

I have used fat.c file available in the ccs drivers and programmed the 2 GB micro SD card and it is working fine. When I make a file it is created and data is appended into the file using the functions available in ex_fat.c file in ccs. But the data appended into the file is limited to few bytes or characters... If I append large data into the file,the data is corrupted and only few words (data) are appended and the same are repeated 3-4 times..

How can I increase the file size to read/write the exact size data from/to the file??.

#define MAX_FILE_NAME_LENGTH 0x20 // the maximum length of a file name for our FAT, including /0 terminator
#define STREAM_BUF_SIZE 0x20 // how big the FILE buffer is. 0x20 is optimal

I have these 2 lines but if I change this number the file is getting corrupted when read from PC.

Please help me in writing huge data to the file.

[ckielstra]

Please don't start a new thread when you already have one on the same topic. I will reply in your original topic.