Preliminary Software User Manual Nexus Architecture
08/27/09
Broadcom Corporation
Document STB_Nexus-SWUM104-D2 Page iii
TABLE OF CONTENTS
Section 1: Introduction........................................................................................................1
Related Documents...................................................................................................................................... 1
Section 2: Nexus Overview.................................................................................................2
Overall Software Stack ................................................................................................................................2
Nexus Architecture ...................................................................................................................................... 3
Example Code .............................................................................................................................................. 4
Example Diagrams ....................................................................................................................................... 5
Section 3: Nexus Modules ..................................................................................................7
Overview ....................................................................................................................................................... 7
Interface to Module Mapping....................................................................................................................... 8
Module State................................................................................................................................................. 9
Module APIs................................................................................................................................................ 10
Public APIs............................................................................................................................................ 10
Private APIs .......................................................................................................................................... 10
Module APIs.......................................................................................................................................... 10
Private Functions .................................................................................................................................. 11
Avoid Modifying Modules.......................................................................................................................... 11
Execution Contexts.................................................................................................................................... 11
Module Interconnections........................................................................................................................... 12
Down Calls............................................................................................................................................ 13
Down Call Enforcement ........................................................................................................................ 13
At Compile Time ........................................................................................................................... 13
ISR Calls and Callbacks ................................................................................................................ 13
Task Callbacks...................................................................................................................................... 14
Callback Descriptor........................................................................................................................ 14
Requesting a Callback................................................................................................................... 14
Creating and Firing a Callback ...................................................................................................... 15
Base Reentrancy ........................................................................................................................... 17
Application Callback Synchronization ............................................................................................18
Other Callback Dangers........................................................................................................................ 19
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szdhl2013-01-15这个是博通DTV和机顶盒API---NEXUS架构的资料，有点用，不过简介果然是简介呀，太简单了吧。。。 BTW, 该架构不只是针对BCM7231的
jxmlegend2013-02-25介绍的太简单了
