Problem with writing more then 16 bytes.

[orange-beans]

Chipset: STM32F410
EEPROM Chip: EE24AT02 (EE24_2KBIT)

Problem occurs when try to write more than 16 bytes:
Code:

  for (uint32_t i = 0; i < 32; i ++) {
    EEPROM_DATA[i] = i;
  }
  if (EE24_Init(&ee24, &hi2c1, EE24_ADDRESS_DEFAULT))
  {
    EE24_Write(&ee24, 0, EEPROM_DATA, 32, 1000);
  }

Result:

10 11 12 13 14 15 16 17
18 19 1A 1B 1C 1D 1E 1F
10 11 12 13 14 15 16 17
18 19 1A 1B 1C 1D 1E 1F

While the correct result should be:

00 01 02 03 04 05 06 07
08 09 0A 0B 0C 0D 0E 0F
10 11 12 13 14 15 16 17
18 19 1A 1B 1C 1D 1E 1F

What might be the problem?

[nimaltd]

hi. let me check the code again. but someone told me check its and it works fine

[Andrew170285]

A similar problem. STM32F407, 24LC02, RTOS

[Andrew170285]

In the ee24.c file, line 104
98 w = EE24_PSIZE - (Address % EE24_PSIZE);
99 if (w > Len)
100 {
101 w = Len;
102 }
103 #if ((EE24_SIZE == EE24_1KBIT) || (EE24_SIZE == EE24_2KBIT))
104 if (HAL_I2C_Mem_Write(Handle->HI2c, Handle->Address, Address, I2C_MEMADD_SIZE_8BIT, Data, Len, Timeout) == HAL_OK)
_____________________________________________________________________________________________________________^
replace Len with w

[nimaltd]

@Andrew170285 okay. I will check it soon. Thanks for report.

[nimaltd]

it has been fixed and I added WP pin.

[orange-beans]

Working great after updates, thanks!

[nimaltd]

Your welcome