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ADSP-BF537 EZ-KIT 

LCD Colorbar Example

Analog Devices, Inc.
DSP Division
Three Technology Way
Norwood, MA 02062

Date Modified:	10/07/05

				  
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This example generates a colorbar pattern in SDRAM memory, sets up the interface to an LCD panel, 
and transmits the colorbar pattern in memory to the LCD via the PPI port.


Files contained in this directory:

LCD_Colorbar.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
config_timer.asm			assembly file for setting up the Timers as PPI frame syncs
main.asm				assembly file for calling all setup subroutines
sdram_init.asm				assembly file for initializing SDRAM control registers
Create_Data.asm				assembly file to generate NTSC color bar pattern
readme.txt				this project description file
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CONTENTS

I.	FUNCTIONAL DESCRIPTION
II.	OPERATION DESCRIPTION


I.    FUNCTIONAL DESCRIPTION

	The LCD colorbar demo demonstrates the initialization of SDRAM memory, the generation of an RGB 5-6-5 
	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 direction, and autobuffer mode.
	

II.  OPERATION DESCRIPTION

	- Open the "LCD_Colorbar.dpj" project.
	  
	- Under the "Project" tab, select "Build Project" (program is then loaded automatically into DSP).

	- Connect an LCD display to the LCD connector on the A-V EZ-Extender board.
	
	- When using the NEC NL6448BC33-54 LCD, remove R2 on A-V EZ-Extender and replace with a short or leave open (depending on desired scan direction) .
	
	- SWitch settings on the A-V EZ-Extender board:	
	- JP2: Jump pins 1 and 2 together.
	- JP4: Jump pins 1 and 2, 3 and 4 together.
	- JP8: Jump pins 1 and 3 together, 2 and 4 together, and 7 and 8 together.
	- JP5: Jump pins 3 and 4 together.

	- SWitch settings on the ADSP-BF537 EZ-KIT Lite board:
	- SW2: Turn pin 2 off.
	
	- Run the executables by pressing "Run" (F5) on the toolbar. You should see a copy of the 
	  colorbar on the output LCD screen.
	  	  
	- The main header file "system.h" contains #define statements for most of the system settings 
	  (clock frequencies etc)