Lemz_SwCtrlStmProj/Drivers/flash/base/bitbuffer.h

#ifndef BITBUFFER_H
#define BITBUFFER_H
   // Ðàçìåð áàéòà = 8 áèò

   // ïðåîáðàçóåò íîìåð áèòà â öåïî÷êå áàéòîâ â ñìåùåíèå áàéòà îò íà÷àëà áóôåðà
   #define BIT2BYTE_OFFSET(n)   ((n)/8)
   #define BITinBYTE_MASK(n)    (1ul<<((n)%8))

   // îïåðåäåëÿåò ìèíèìàëüíûé ðàçìåð â áàéòàõ äîñòàòî÷íûé äëÿ õðàíåíèÿ n áèò
   #define BITBUFFER_SIZE(n)    ((n)/8 + 1)

   // óñòàíîâêà, ñáðîñ, ïðîâåðêà áèòîâ â ïîòîêå áàéòîâ
   #define BITBUFFER_CHECK(bytesStream,n)    (((bytesStream)[ BIT2BYTE_OFFSET(n) ]) &  BITinBYTE_MASK(n))
   #define BITBUFFER_SET(  bytesStream,n)     ((bytesStream)[ BIT2BYTE_OFFSET(n) ]) |= BITinBYTE_MASK(n)
   #define BITBUFFER_CLEAR(bytesStream,n)     ((bytesStream)[ BIT2BYTE_OFFSET(n) ]) &= (~BITinBYTE_MASK(n))

      // ïîèñê íîìåðà íà÷àëüíîãî ñåêòîðà ïî àäðåñó
   #define __FLASH_ADDRESS2SECTOR_BEGIN(addr,sectSize)     ((addr)/(sectSize))
   #define __FLASH_ADDRESS2SECTOR_END(addr,sectSize)       (((addr)/(sectSize)) + ((((addr)%(sectSize))>0)?1:0))
#endif