Error in compiling mmcsd.c library

isururivi · Joined: 09 Aug 2011 Posts: 3

When I am going to write to sd card I include mmcsd.c file and fat.c file.
But when I compile my project file it shows the following error:

data item too big ----->
uint8_t g_mmcsd_buffer[MMCSD_MAX_BLOCK_SIZE];

dyeatman · Joined: 06 Sep 2003 Posts: 1924 Location: Norman, OK

The CCS manual says this:

ckielstra · Joined: 18 Mar 2004 Posts: 3680 Location: The Netherlands

Just a wild guess:
You are compiling the code for use with a PIC16 or smaller device?

MMC & SD cards have to be accessed in blocks of 512 bytes. Many PIC16 chips don't have large enough RAM memory to hold all this data. Save yourself a lot of trouble and choose a chip with more than 1500 bytes of RAM, best a PIC18.