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Altera_Forum
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19 years ago

frame buffer

Hello hippo and all NiosII users! I compiled uClinux-dist with frame buffer (as wrote on nioswiki) and loaded it in my custom board(flash,sdram,vga_controller,uart,eth). Linux is loaded(I see it ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
19 years ago

Do you see this message in booting?

fb0: Altera frame buffer device, using 600K of video memory

The framebuffer driver is,

linux-2.6.x/arch/nios2nommu/drivers/altfb.c

You may look at altfb_probe(), which init the hardware.

You may need to use scope or signal-tap to check the output pins of the vga controller, HS,VS, etc.

You may need to modify the vga component to meet your LCD timing.