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DE10-Nano 
D8M RTL 

 

www.terasic.com

 

February 24, 2017 

 

 

Figure 2 System Block Diagram 

 

RESET_DELAY:

 When press KEY0 , this module will provide LOW signal of 

about 0.25 seconds for the whole system module to do RESET. 

ON_CHIP_FRAM

:This module is one dual-port-ram controller can control 640 

x 480 x10bit on-chip ram and read/write image data 

MIPI_BRIDGE_CAMERA_Config

:the MIPI BRIDGE I2C and Camera  I2C 

setting controller, such as set to output 480P@60Hz timing. It mainly writes I2C 
corresponding parameters to MIPI-BRIDGE IC register and Camera Sensor IC 
register respectively through their own I2C buses. MIPI_I2C bus is used to write 
MIPI BRIDGE I2C  (I2C Slave Address = 0x1c.), CAMERA_I2C bus is used to 
write Camera Sensor (IC Slave Address = 0x6c). 

RAW2RGB_J

: This module is to convert RAW data to RGB data. 

VGA_Controlle 

: the LCD signal timing generator, can generate 480P@60 Hz 

signal timing. 

FOCUS_ADJ

: This module provides two main functions.  

The first function is using I2C bus to write D8M Voice Coil Motor (VCM) driver 
IC register, and control the camera lens’ movements to perform image focusing. 
VCM driver IC register (I2C Slave Address =0x18) shares I2C bus with camera 
module. The other function is doing the current image high frequency component 
statistic. When the VCM drives the camera lens’ movement, a real-time statistics 
of image high-frequency sum will be done in every step of the moving. Finally, 
the lens will move to a position which has the largest number of high frequency 
to complete the automatic focus operation. Focus area can be selected by SW3. 

There are two options

 

 

 

Select focusing the whole screen area (set SW3 to 0)  

 

Select focusing the middle area (set SW3 to 1). 

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