readme.txt

ADSP 地层驱动

Project Name: VideoEcho

Project Type:
	ADSP-BF533 [X]
	ADSP-BF537 [ ]
	ADSP-BF561 [ ]
	
Hardware Used:
	ADV7183 - Video Decoder (Video Input)
	ADV7179 - Video Encoder (Video Output)  
	
System Services Components Used:
	DMA Manager                         [X]   Deferred Callback Manager   [ ]
	Interrupt Manager                   [X]   Timer Module                [ ]
	Power Management Module             [X]   Flag Module                 [ ]
	External Bus Interface Unit Module  [X]   Port Module                 [ ]
	
Example Overview:


	This example shows how to access the PPI driver for both input and output. The example
	first configures the PPI driver for input, then reads in a single frame of video
	information from the video-in source, buffering the data in SDRAM.  The PPI driver is
	then closed and re-opened for output.  The buffered video frame is then sent out the
	PPI to the video-out monitor, where it is displayed for a few seconds.  The process
	then repeats, until push button SW7 is pressed.   When the button is pressed, the
	program is terminated.
				
	LED4 on the EZ-Kit is lit when the PPI is configured for input.
	LED9 is lit when the PPI is configured for output.  
				
	Upon any error in the program, all LEDs are lit up.


File  Structure:
	"./VideoEcho.dpj"   -  Main project file
	"./VideoEcho.c"   -  Main source file
	"./ezkitutilities.c" - EZ-Kit utilities file for Blackfin procesors
	"./ezkitutilities.h" - EZ-Kit utilities	header file for Blackfin procesors	

	

System Configuration:
	Jumpers: SW3  (video configuration switch)
		 1:OFF, 2:OFF, 3:OFF, 4:OFF, 5:OFF, 6:ON

	External connections:
		Connect a monitor to the EZ-Kit video-out connector and a video source 
		to the EZ-Kit video-in. The video connectors are the bank of 6 RCA-style 
		jacks nearest the serial cable connector on the EZ-Kit labeled as J6.
		
         J6 -----------------------------------------------------
            |          O          O < Video Out  O              |	        	
            |          O          O              O < Video In   |
            -----------------------------------------------------

Getting Started:

	1)	Load Project file "VideoEcho.dpj"
	2)	Build Project by selecting "Project->Rebuild Project"
	3)	Select "Debug->Run"
	4)	Observe video output on monitor.
	5)	Select "Debug->Halt" to stop the program, when finished.