UM1653 datasheet(24/45 Pages) STMICROELECTRONICS

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NAND driver firmware modules

UM1653

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DocID025024 Rev 1

Table 23. NAND_GarbageCollection

Function name

NAND_GarbageCollection.

Prototype

uint16_t NAND_GarbageCollection(void)

Behavior description

Erases Blocks every time the write operation is stopped.

Input parameter

None

Output parameter

Status of NAND Garbage collection. This parameter can be:

– NAND_OK: when the NAND Garbage collection is successful

– NAND_FAIL: when NAND fails to Garbage collection.

Table 24. NAND_UpdateWearLevelCounter

Function name

NAND_UpdateWearLevelCounter.

Prototype

uint16_t NAND_UpdateWearLevelCounter (NAND_ADDRESS Address)

Behavior description

Increments the value of Wear Level counter after every erase.

Input parameter

Address: Logical Address.

Output parameter

Status of NAND Update Wear Level. This parameter can be:

– NAND_OK: when the NAND Update Wear Level is successful

– NAND_FAIL: when NAND fails to Update Wear Level.

Table 25. NAND_ConvertPhyAddress

Function name

NAND_ConvertPhyAddress.

Prototype

NAND_ADDRESS NAND_ConvertPhyAddress (uint32_t Address)

Behavior description

Converts Memory Offset into Physical Address.

Input parameter

Address: Memory Offset in Multiple of 512B(0,512/512,1024/512...).

Output parameter

Physical Address.

Table 26. NAND_BuildLUT

Function name

NAND_BuildLUT.

Prototype

uint16_t NAND_BuildLUT (uint8_t Zone)

Behavior description

Builds the Look Up Table.

Input parameter

ZoneNbr: The Zone Number.

Output parameter

Status of NAND Build Look Up Table. This parameter can be:

– NAND_OK: when the NAND Build Look Up Table is successful

– NAND_FAIL: when NAND fails to Build Look Up Table.

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