文件列表:

Video Output (0, 2004-07-04)
Video Output\video_output.dxe (14976, 2003-12-11)
Video Output\ADSP-BF533_ASM.ldf (1529, 2004-05-21)
Video Output\config_dma.asm (1625, 2004-05-21)
Video Output\config_ppi.asm (949, 2004-05-21)
Video Output\flash_config.h (540, 2004-05-21)
Video Output\Reset_ADV.asm (2167, 2004-05-21)
Video Output\sdram_init.asm (1530, 2004-05-21)
Video Output\startup.asm (6979, 2004-05-21)
Video Output\startup.h (950, 2004-05-21)
Video Output\videograph.asm (6108, 2004-05-21)
Video Output\video_out.dpj (6321, 2004-05-21)
Video Output\video_output.dpj (7703, 2004-05-21)
Video Output\zero.dat (203, 2004-05-21)
Video Output\Main.asm (4290, 2004-05-21)

**************************************************************************************************** ADSP-BF533 EZ-KIT Lite Video Output Example Analog Devices, Inc. DSP Division Three Technology Way Norwood, MA 02062 Date Created: 3/17/03 ____________________________________________________________________________________________________ This directory contains an example ADSP-BF533 video output project that initializes SDRAM memory, sets up the DMA configuration registers to DMA data from SDRAM to the PPI, and configures the PPI port for ITU-656 output transmit mode. Files contained in this directory: video_out.dpj VisualDSP++ project file config_dma.asm assembly file for setting up DMA configuration registers config_ppi.asm assembly file for setting up the PPI port main.asm assembly file for calling all setup subroutines Reset_ADV.asm assembly file for resetting the ADV7171 sdram_init.asm assembly file for initializing SDRAM control registers startup.asm assembly file for initial startup conditions videograph.asm assembly file to generate NTSC color bar pattern readme.txt this project description file ADSP-BF533_asm.ldf linker description file flash_config.h startup.h ____________________________________________________________________________________________________ CONTENTS I. FUNCTIONAL DESCRIPTION II. IMPLEMENTATION DESCRIPTION III. OPERATION DESCRIPTION I. FUNCTIONAL DESCRIPTION The video output demo demonstrates the initialization of SDRAM memory, the generation of an NTSC color bar pattern, and the use of the DMA and PPI to output the color bar pattern. This example utilizes SDRAM memory to store the color bar pattern data. Upon completion of generating the data, the program sets up the DMA and PPI configuration registers for output, transmit mode, autobuffer, mode. II. IMPLEMENTATION DESCRIPTION The main file calls: 1. the setup_sdram subroutine to initialize SDRAM memory, 2. the _NtscVideoOutFrameBuffInit subroutine to generate the color bar pattern data and store in SDRAM memory, 3. the config_dma subroutine to setup autobuffer, 2-D, 16-bit transmit DMA, and 4. the config_ppi subroutine to configure the PPI port for 656 output mode. III. OPERATION DESCRIPTION - Open the project "video_out.dpj" in the VisualDSP Integrated Development Environment (IDDE). - Under the "Project" tab, select "Build Project" (program is then loaded automatically into DSP). - Connect a video display monitor to the video output jack on the ADSP-BF533 EZ-KIT Lite (See ADSP-BF533 EZ-KIT Lite Manual and schematics for more details on the connectors). - Select "Run" from the "Debug" tab on the menu bar of VisualDSP. - See the color bar pattern displayed on the video monitor.

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