UM1653 datasheet(19/45 Pages) STMICROELECTRONICS

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UM1653

NAND driver firmware modules

2.7

NAND driver files

2.7.1

nand_drv.c, nand_drv.h functions

Table 4. NAND_Init

Function name

NAND_Init.

Prototype

uint16_t NAND_Init(void)

Behavior description

Initializes NAND Interface

Input parameter

None

Output parameter

Status of NAND Initialization. This parameter can be:

– NAND_OK: when the NAND is OK.

– NAND_FAIL: when NAND fails to initialize.

Table 5. NAND_Write

Function name

NAND_Write.

Prototype

uint16_t NAND_Write(uint32_t Memory_Offset,

uint8_t *Writebuff,

uint16_t Transfer_Length)

Behavior description

Writes one sector at once

Input parameter

Memory_Offset: Memory Offset.

Writebuff: Pointer to the data to be written.

Transfer_Length: Number of byte to write.

Output parameter

Status of NAND Write. This parameter can be:

– NAND_OK: when the NAND Write is successful

– NAND_FAIL: when NAND fails to Write.

Table 6. NAND_Read

Function name

NAND_Read.

Prototype

uint16_t NAND_Read(uint32_t Memory_Offset,

uint8_t *Readbuff,

uint16_t Transfer_Length)

Behavior description

Reads sectors.

Input parameter

Memory_Offset: Memory Offset.

Readbuff: Pointer to store the read data.

Transfer_Length: Number of byte to read.

Output parameter

Status of NAND Read. This parameter can be:

– NAND_OK: when the NAND Read is successful.

– NAND_FAIL: when NAND fails to Read.

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