kar2on
Member level 1
avr mmc fat
Hi, I've designed a hardware project to write data from a PIC to an MMC card, however now I need to write the data to MMC with a FAT file system. I'm using mikroC (freeware version) so I'm unable to use the fat file system commands. My project is simple, so I don't want to splurge US240 for a program just for one command.
Let me explain a bit about my project:-
I take in analog data, sample it and then store it in the MMC (512 bytes at a time)
So in the MMC card, there is one file, that grows 512bytes at a time.
How do I determine the starting location of the file, and how do I increase the file size . I downloaded the Microsoft Fat File System information, but nothing helps. I know the fat file table is at the beggining of the MMC, i know roughly which numbers they correspond to, but the numbers don't add up. Is it because the numbers are little-endian or something like that. Please help.
Hi, I've designed a hardware project to write data from a PIC to an MMC card, however now I need to write the data to MMC with a FAT file system. I'm using mikroC (freeware version) so I'm unable to use the fat file system commands. My project is simple, so I don't want to splurge US240 for a program just for one command.
Let me explain a bit about my project:-
I take in analog data, sample it and then store it in the MMC (512 bytes at a time)
So in the MMC card, there is one file, that grows 512bytes at a time.
How do I determine the starting location of the file, and how do I increase the file size . I downloaded the Microsoft Fat File System information, but nothing helps. I know the fat file table is at the beggining of the MMC, i know roughly which numbers they correspond to, but the numbers don't add up. Is it because the numbers are little-endian or something like that. Please help.