AN4570 datasheet(17/46 Pages) STMICROELECTRONICS

17 / 46 page

DocID026804 Rev 1

17/46

AN4570

Interfacing with a non-multiplexed, asynchronous 16-bit NOR Flash memory

return NOR_ERROR;

}

/*##-2- Read & check the NOR device IDs

####################################*/

/* Initialize the ID structure */

NOR_ID.Manufacturer_Code = (uint16_t)0x00;

NOR_ID.Device_Code1 = (uint16_t)0x00;

NOR_ID.Device_Code2 = (uint16_t)0x00;

NOR_ID.Device_Code3 = (uint16_t)0x00;

/* Read the NOR memory ID */

if(HAL_NOR_Read_ID(&norHandle, &NOR_ID) != HAL_OK)

{

return NOR_ERROR;

}

/*##-3- Erase NOR memory

###################################################*/

/* Return to read mode */

HAL_NOR_ReturnToReadMode(&norHandle);

/* Send NOR erase block operation */

HAL_NOR_Erase_Block(&norHandle,

WRITE_READ_ADDR,

NOR_DEVICE_ADDR);

/* Return the NOR memory status */

if(HAL_NOR_GetStatus(&norHandle,

NOR_DEVICE_ADDR,

BLOCKERASE_TIMEOUT) != NOR_SUCCESS)

{

return NOR_ERROR;

}

/*##-4- NOR memory read/write access

######################################*/

/* Write data to the NOR memory */

if(NOR_WriteData(WRITE_READ_ADDR,

nor_aTxBuffer,

BUFFER_SIZE) != NOR_OK)

{

return NOR_ERROR;

}

/* Read back data from the NOR memory */

AN4570 Datasheet(PDF) 17 Page - STMicroelectronics

AN4570 Datasheet(HTML) 17 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46

Datasheet Download

Link URL