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   源码介绍

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2802x C/C Header Files and Peripheral Examples

2802x C/C Header Files and Peripheral Examples
Quick Start
1 Device Support:............................................................................................................................2
2 Introduction:.................................................................................................................................2
2.1 Revision History......................................................................................................................3
2.2 Where Files are Located (Directory Structure)........................................................................4
3 Understanding The Peripheral Bit-Field Structure Approach ...................................................6
4 Peripheral Example Projects.......................................................................................................7
4.1 Getting Started .......................................................................................................................7
4.1.1 Getting Started in Code Composer Studio v4.0 .........................................................7
4.2 Example Program Structure..................................................................................................13
4.2.1 Source Code.............................................................................................................14
4.2.2 Linker Command Files ..............................................................................................14
4.3 Example Program Flow.........................................................................................................16
4.4 Included Examples: ..............................................................................................................17
4.5 Executing the Examples From Flash.....................................................................................19
5 Steps for Incorporating the Header Files and Sample Code...................................................23
5.1 Before you begin...................................................................................................................23
5.2 Including the DSP2802x Peripheral Header Files.................................................................23
5.3 Including Common Example Code........................................................................................27
6 Troubleshooting Tips & Frequently Asked Questions.............................................................30
6.1 Effects of read-modify-write instructions. ..............................................................................32
6.1.1 Registers with multiple flag bits in which writing a 1 clears that flag...........................33
6.1.2 Registers with Volatile Bits........................................................................................33
7 Migration Tips for moving from the TMS320x280x or TMS320x281x header files to the
TMS320x2802x header files.......................................................................................................34
8 Packet Contents:........................................................................................................................35
8.1 Header File Support – DSP2802x_headers..........................................................................35
8.1.1 DSP2802x Header Files – Main Files........................................................................35
8.1.2 DSP2802x Header Files – Peripheral Bit-Field and Register Structure Definition
Files..........................................................................................................................36
8.1.3 Variable Names and Data Sections...........................................................................37
8.2 Common Example Code – DSP2802x_common...................................................................38
8.2.1 Peripheral Interrupt Expansion (PIE) Block Support..................................................38
8.2.2 Peripheral Specific Files............................................................................................39
8.2.3 Utility Function Source Files......................................................................................40
8.2.4 Example Linker .cmd files .........................................................................................40
8.2.5 Example Library .lib Files..........................................................................................41
9 Detailed Revision History:.........................................................................................................42