Posted on May 17, 2011 at 12:03Hello,
I use the eeprom emulation code in my application. But I found
that I have timing problems: If I called eeprom_update() more than
150 times, the writing time increased continous. At least I took 6 seconds (!)
to write the data.
Has anyone notice such a proplem ? Searching throung the linked-list ?
I'am a little bit confusing how to use the id parameter in
the functions update_record() and read_record() ?
Especially if I choose a EEPROM_RECORD_SIZE greater than 1.
I used the following configuration in eeprom.h:
typedef enum
{
EEPROM_ID_HARDWARE_STATE = 0,
EEPROM_ID_SECURITY_STATUS = 1,
EEPROM_ID_TRANSPORT_KEY_BYTE1 = 2,
EEPROM_ID_TRANSPORT_KEY_BYTE2 = 3,
EEPROM_ID_TRANSPORT_KEY_BYTE3 = 4,
EEPROM_ID_TRANSPORT_KEY_BYTE4 = 5,
EEPROM_ID_TRANSPORT_KEY_BYTE5 = 6,
EEPROM_ID_TRANSPORT_KEY_BYTE6 = 7,
EEPROM_ID_TRANSPORT_KEY_BYTE7 = 8,
EEPROM_ID_TRANSPORT_KEY_BYTE8 = 9,
EEPROM_ID_LCD_LIGHT = 10,
EEPROM_ID_POWER_LOSS_STATUS = 11,
EEPROM_ID_SOUND_VOLUME = 12
} EepromId;
// EEPROM Sector size is 8192 bytes
// EEPROM_RECORD_SIZE and max_records (entered by application /programmer)
// must be defined such that
// (max_records * EEPROM_RECORD_SIZE) + header size (7 bytes) <= 8192/2
// size in bytes of each record
#define EEPROM_RECORD_SIZE 1
// number of bytes per sector
#define SECTOR_SIZE 0x2000
// maximum number of data records handled in the eeprom emulation
#define EEPROM_MAX_RECORDS 50
Ciao, Ciao
Andreas
