/*****************************************************************************/
/* Revision history of library to access microSD                             */
/*                                                                           */
/*  Lib: sd_v100.lib                                                         */
/*  Head file: microSD.h                                                     */
/*                                                                           */
/*  microSD card supported: 1GB and 2GB. (can not support microSDHC)         */
/*  Hardware supported:                                                      */
/*      uPAC-5001, iP-8441, ip-8841, G4500                                   */
/*      and other controllers which supports microSD.                        */
/*                                                                           */
/*  Read/Write Performance                                                   */
/*      Test: 500 bytes x 1000 loops                                         */
/*      Read: 10178ms(49.1KB/Sec)                                            */
/*      Write: 39852ms(12.5KB/Sec)                                           */
/*****************************************************************************/
[2010,Mar,16] Version 1.0.2
    New function
        1. pc_size
        2. pc_eof
    
    Modification
        1. renames pc_rtfs_init to pc_init 
        
    Bugs Fixed
        1. pc_get_freeSize_KB,pc_get_usedSize_KB
            When firs time calls either of the functions,
            the execution time is about 2.6 seconds.
            2.6 seconds is greater than the system WDT timer (0.8 second).
            To avoid the reset, the two functions call RefreshWDT internally.
            
            When either of the functions is called, the later calls take less than 1 ms.
        
        2. pc_open, pc_seek, pc_tell doesn't work correct in version 1.0.1.
           
-------------------------------------------------------------------------------
[2010,Jan,11] Version 1.0.1 (unstable version)
    New support
        1. Support G4500
        
    New function
        1. Add pc_tell
        
    Modification
        1. Rename pc_lseek to pc_seek
        
    Bugs fixed
        1. pc_ertfs_init sometimes fails.
-------------------------------------------------------------------------------
[2009,09,21] Version 1.0.0
    1. First released version.
    
    2. Supports following API functions.
        pc_getLibVer,pc_getLibDate,
        pc_open,pc_read,pc_write,pc_lseek,pc_close,
        pc_format,pc_mkdir,pc_rmdir,pc_move,pc_del,pc_deltree,pc_isdir,pc_isvol,
        pc_set_cwd,pc_get_cwd,
        pc_gfirst,pc_gnext,pc_gdone,
        pc_get_freeSize_KB,pc_get_usedSize_KB,pc_get_totalSize_KB,
        pc_get_attributes,pc_set_attributes,pc_get_errno.