UM0851 datasheet(124/245 Pages) STMICROELECTRONICS

부품명	UM0851

상세설명	SPEAr is a family of highly customizable ARM-based embedded

PDF	245 Pages

Scroll/Zoom	100%

제조업체	STMICROELECTRONICS [STMicroelectronics]

홈페이지	http://www.st.com

Logo

124 / 245 page

Non-volatile memory device drivers

UM0851

124/245

Doc ID 16604 Rev 2

Figure 31.

Interface between FSMC and NAND Flash

5.1.2

Software overview

The NAND device driver sits on top of the FSMC and provides all the necessary functions

for a file system via the standard Linux MTD interface. NAND device driver controls the

functionality of FSMC by using the API of FSMC driver.

Figure 32.

NAND software system architecture

Once started, the NAND device driver scans for the available NAND chips and if a chip is

found and matches to its list of devices, the device driver configure it. After the initial

configuration, the NAND Flash information regarding the NAND Flash is exported to the

MTD layer and the Flash is ready to be used by the file system.

FSMC

AHB

NAND Flash

AHB

Interface

Chip Select

Data,

Address,

Control

Bus

FSMC Wait

Ready/Busy

NOR driver

NAND driver

Linux MTD layer

YAFFS2

JFFS2

VFS

FSMC

SMI

controller

Application

User space

Kernel space

Hardware

NAND

Flash

UM0851 데이터시트(PDF) 124 Page - STMicroelectronics

UM0851 데이터시트(HTML) 124 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 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

데이터시트 다운로드

링크 URL