使用32位微控制器TriCore的看门狗定时器的方法和实例

Infineon TriCore 32-bit microcontrollers provide a Watchdog Timer (WDT) on-chip.
This application gives hints and examples for in-system programming of the WDT and
describes the WDT protocol.
Authors: Thomas Bliem, CQ Nguyen / Infineon SMI MD Apps
1 Overview..3
2 WDT Initialization4
2.1 Default values .4
2.2 Time Out Mode .....4
2.3 Servicing the WDT5
3 The access to the WDT Registers 6
3.1 Password access ..6
3.2 Modify access .7
3.3 Wrong register access 8
4 How to change the WDT Registers....9
4.1 How to change the WDTCON0..9
4.2 How to change the WDTCON110
4.3 Normal Timer Period.10
5 Using the WDT ..11
6 Extended Security Thoughts 12
6.1 Multiple Service Sequences.....12
6.2 Single Service Sequence13
6.3 Password Access using Extended Security Thoughts 14
7 WDT Register Overview 15