文件列表:

LCD (0, 2006-10-23)
LCD\LCD_Colorbar.dpj (7536, 2006-04-28)
LCD\config_dma.asm (1485, 2006-04-28)
LCD\config_ppi.asm (1686, 2006-04-28)
LCD\config_timer.asm (1382, 2006-04-28)
LCD\Create_Data.asm (2134, 2006-04-28)
LCD\Main.asm (2938, 2006-04-28)
LCD\sdram_init.asm (1440, 2006-04-28)
LCD\startup.asm (7606, 2006-04-28)
LCD\startup.h (854, 2006-04-28)
LCD\ADSP-BF537_ASM.ldf (10628, 2006-04-28)

**************************************************************************************************** ADSP-BF537 EZ-KIT LCD Colorbar Example Analog Devices, Inc. DSP Division Three Technology Way Norwood, MA 02062 Date Modified: 10/07/05 ____________________________________________________________________________________________________ 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 startup.asm assembly file for initial startup conditions Create_Data.asm assembly file to generate NTSC color bar pattern readme.txt this project description file startup.h ____________________________________________________________________________________________________ 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 NL***48BC33-54 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)

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