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Altera_Forum's avatar
Altera_Forum
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16 years ago

NEEK Standard System with VGA Controller

Hello, I'm looking for NEEK Standard System configuration (EP3C25) (like: http://www.nioswiki.com/@api/deki/files/115/=neek_ocm_spi.zip) with a VGA Controller (like: http://forum.niosforum.com/...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Hi,

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I want to run uClinux on my NEEK. The driver for the mentioned VGA Controller are included in uClinux-dist. How about VGA driver on uClinux when I would use components like those in the LCD example?

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If your hardware for VGA has similar structures, i.e. using a DMA, you can apply the LCD driver with slight modification.

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So I generated the nios system which contains the vga controller. Now I would like to encode the RGB data. But the TDM component (or the vga encoder from Terasic I found later) encodes 30-bit data to 10-bit.

The vga controller however has 24-bit output rgb data. How to solve this problem?

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One method is to connect them from their MSB and put GND to the remaining 2bits. But I strongly recommend you to study original NEEK LCD structure and its IP again.

Kazu