VGA Oscilloscope

Project of digital oscillscope built with an ADC on a Mimas Spartan 6 development board.

Contents

Directory src:

• bram block
• vga driver
• pmod ad1 driver

GPIOs configuration file:

• pinout.ucf

Results

demo.mp4

• DC signal

• Sine signal

• Triangle signal

• Square signal

Flaws

Project displays oscillogram vertically due to simpler implementation. Oscilloscope lacks synchronization for reading from memory and displaying via VGA. 8 MSB bits from 12 bit data are used to avoid LUT memory usage so the waveforms are truncated.

Future updates

• synchronization
• horizontal drawing
• auxiliary grid applied
• cursors
• second channel
• adjustment of the amplitude axis and time base
• trigger options
• math functions