efs.ProgramPage

#include <file_config.h>

BOOL ProgramPage  (
     U32 adr,          /* data page address          */
     U32 sz,           /* size of the data page      */
     U8* buf);         /* buffer containing the data */

The function ProgramPage programs a Flash memory. The parameter adr specifies the page address. The parameter sz specifies the size in bytes and must be 4-byte aligned. The parameter buf is a pointer specifying the content to be programmed and must be a multiple of 4.

The function is part of the Flash Driver. The prototype is defined in the file File_Config.h. Developers must customize the function.

• __TRUE = executed successfully
• __FALSE = failure

efs.EraseChip, efs.EraseSector, efs.Init, efs.ReadData, efs.UnInit

/* Embedded Flash Device Driver Control Block */
EFS_DRV fl0_drv = {
  Init,
  UnInit,
  ReadData,
  ProgramPage,
  EraseSector,
  EraseChip
};

/* Program Page in Flash Memory. */
static BOOL ProgramPage (U32 adr, U32 sz, U8 *buf)  {

  for (  ; sz; sz -= 2, adr += 2, buf += 2)  {
    M16(base_adr | 0xAAA) = 0xAA;
    M16(base_adr | 0x554) = 0x55;
    M16(base_adr | 0xAAA) = PROGRAM;
    M16(adr) = *(__packed U16 *)buf;             /* 'buf' might be unaligned. */

    if (Q6Polling (adr) == __FALSE)  {           /* Wait until Programming completed */
      return (__FALSE);
    }
  }
  return (__TRUE);
}