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Altera_Forum's avatar
Altera_Forum
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17 years ago

using DE1 control panel to put colour images into SRAM

i have been trying to put images into SRAM using the DE1 control panel.. so far, i hv been able to show a grayscale picture in VGA to an external monitor... but when i tried it with a colour ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

Hi Angel.

If you read carrefully the DE1 manual, you will see that you only can download grayscale images to the DE1 through the control panel. This is using your own image and convert it with the Image converter software provided.

Also if you do a close look at the DE1_USB_API.v code, you'll be noticed of that in these lines:

assign mVIN_R = mVGA_ADDR[0] ? mSRAM_VGA_DATA[15:8]<<2 : mSRAM_VGA_DATA[7:0]<<2 ;

assign mVIN_G = mVGA_ADDR[0] ? mSRAM_VGA_DATA[15:8]<<2 : mSRAM_VGA_DATA[7:0]<<2 ;

assign mVIN_B = mVGA_ADDR[0] ? mSRAM_VGA_DATA[15:8]<<2 : mSRAM_VGA_DATA[7:0]<<2 ;

Same assigns for R,G,B.