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Forum: FPGA, VHDL & Verilog de1 - soc fpga


Author: Mark Jomari (imaroj)
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is it ideal for image processing purposes>? what is the difference in 
vga 24 bit dac to 8 bit dac?

Author: Lothar Miller (lkmiller) (Moderator)
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Mark Jomari wrote:
> what is the difference in vga 24 bit dac to 8 bit dac?
Do you have an example for those two numbers?
Usually thats the same: 3 colors with 8 bit resolution are 24 bits.

Author: Mark Jomari (imaroj)
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i saw the specification of de1-soc. it says that de1-soc has 24 bit DAC 
vga output and the de2-115 has 8 bit DAC vga output,., what is the 
difference between them?

Author: Duke Scarring (Guest)
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24 bit = 2^24 = 16777216 colors
 8 bit = 2^8  =      256 colors

But you didn't read well. In
ftp://ftp.altera.com/up/pub/Altera_Material/12.1/Boards/DE2-115/DE2_115_ 
User_Manual.pdf
page 52 I found:
the Analog Devices ADV7123 triple 10-bit high-speed video DAC (only the higher 8-bits are used)
you can find the DE2-115 also support 24 bit (=16M) color.

Duke

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