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MC9S12XET256MAG 用户编程手册 - NXP

  • 制造商:
    NXP
  • 分类:
    16位,控制器
  • 封装
    LQFP-144
  • 描述:
    MCU 16Bit HCS12X CISC 256KB Flash 1.8V/2.8V/5V 144Pin LQFP Tray
更新时间: 2024-04-08 21:58:51 (UTC+8)

MC9S12XET256MAG 用户编程手册

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Freescale Semiconductor
Application Note
Document Number: AN3333
Rev. 0, 11/2006
Contents
© Freescale Semiconductor, Inc., 2006. All rights reserved.
1 Introduction
The XGATE signal gateway package is a collection of
header and source files in the C programming language,
enabling you to create a CAN and LIN signal level
automotive body gateway. The gateway structure
detailed in this application note is flexible enough to
allow extensions and/or modifications to satisfy a
particular environment’s requirements.
2 Signal Gateway Theory
No industry-wide standard currently exists for
automotive body gateways. Each vehicle manufacturer
maintains his or her own set of evolving specifications of
the traffic a gateway handles. This section outlines one
set of specifications. These specifications are not based
on requirements set by any specific vehicle
manufacturer. To gain insight into the XGATE
performance, this set represents meaningful basic body
gateway requirements enabling a real-world gateway to
be implemented.
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2 Signal Gateway Theory . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2.1 The Purpose of Gateways . . . . . . . . . . . . . . . . . . . . 2
2.2 Data Representation . . . . . . . . . . . . . . . . . . . . . . . . 3
2.3 Gateway Data Flow . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Gateway Implementation. . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1 Data Structures . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.2 Algorithms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.3 Limitations of This Gateway Implementation. . . . . 23
4 Performance Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.1 XGATE Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.2 Required Memory Size . . . . . . . . . . . . . . . . . . . . . 32
5 Generating the Descriptors . . . . . . . . . . . . . . . . . . . . . . 34
5.1 Generated Files . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
5.2 Node Data Worksheet . . . . . . . . . . . . . . . . . . . . . . 35
5.3 Rx Frames Worksheet. . . . . . . . . . . . . . . . . . . . . . 35
5.4 Tx Frame Worksheet. . . . . . . . . . . . . . . . . . . . . . . 37
5.5 Generating the Source Files . . . . . . . . . . . . . . . . . 38
6 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
XGATE Library: Signal Gateway
Implementing CAN and LIN Signal Level Gateway
by: Daniel Malik
MCD Applications
East Kilbride, Scotland

MC9S12XET256MAG 数据手册 PDF

MC9S12XET256MAG 产品设计参考
NXP
1324 页, 8278 KB
MC9S12XET256MAG 用户编程手册
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40 页, 728 KB
MC9S12XET256MAG 其它数据手册
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MC9S12XET256MAG 应用笔记
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MC9S12XET256MAG 产品描述及参数
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MC9S12XET256 数据手册 PDF

MC9S12XET256MAL
产品设计参考
NXP
MCU 16Bit HCS12X CISC 256KB Flash 1.8V/2.8V/5V 112Pin LQFP Brick
MC9S12XET256MAG
数据手册
Freescale
MCU 16Bit HCS12X HCS12X CISC 256KB Flash 1.8V/2.8V/5V Automotive 144Pin LQFP Tray
MC9S12XET256MAG
产品设计参考
NXP
MCU 16Bit HCS12X CISC 256KB Flash 1.8V/2.8V/5V 144Pin LQFP Tray
MC9S12XET256MAA
数据手册
NXP
MCU 16Bit HCS12X CISC 256KB Flash 1.8V/2.8V/5V 80Pin PQFP Tray
MC9S12XET256MAL
数据手册
Freescale
MCU 16Bit HCS12X HCS12X CISC 256KB Flash 1.8V/2.8V/5V Automotive 112Pin LQFP Tray
MC9S12XET256MAA
数据手册
Freescale
MCU 16Bit HCS12X HCS12X CISC 256KB Flash 1.8V/2.8V/5V Automotive 80Pin PQFP Tray
MC9S12XET256CAG
数据手册
NXP
MCU 16Bit HCS12X CISC 256KB Flash 1.8V/2.8V/5V 144Pin LQFP Tray
MC9S12XET256CAG
数据手册
Freescale
MCU 16Bit HCS12X HCS12X CISC 256KB Flash 1.8V/2.8V/5V Automotive 144Pin LQFP Tray
MC9S12XET256VAL
数据手册
NXP
16Bit MCU, S12X core, 256KB Flash, 50MHz, -40/+105℃, QFP 112
MC9S12XET256VAL
数据手册
Freescale
Development Boards & Kits - S08 / S12 16Bit 256K FLASH 16K RAM
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