vga-core

Modules

• disp_config
• vga_sync_gen
• vga_pixel_clock
• vga_data_gen

VGA Sync Generator (vga_sync_gen)

• inputs: clock (from pixel clock gen), reset
• outputs: hsync, vsync, data_enable (high when counters in active display area not blanking)

Display Configuration (disp_config)

The display configuration module takes inputs from the interfaces on the BASYS3 development board to set the display resolution and refresh rates.

Pixel Clock Generator

Clock frequency for the VGA controller (Pixel Frequency) is based on the number of display pixels.

Pixel Frequency = [Horiz_Res + Horiz_Blanking] * [Vert_Res + Vert_Blanking] * Refresh_Rate