BOARD / TOPNATIVE GEOMETRY · COMPONENT SIDE
Connections in plain sight.
Native v1.9 Mini-ITX board, including Cyclone III, SDRAM, ARM control, USB, MIDI and analogue media interfaces.
- PCB outline
- 170 × 170 mm
- Board thickness
- 1.6 mm
- Copper layers
- 6
PRECISION ARRAYS / THE MIST ITX PROJECT
Classic roots.
Room to connect.
FPGA computing.
A full Mini-ITX footprint.
A Cyclone III FPGA, 32 MiB of SDRAM and an ARM controller, surrounded by USB, MIDI, video, audio and expansion connections. Explore MiST in its ITX form.
01 — THE IDEAScroll to discover ↓Native CAD · Blender studio render
EP3C25Intel / Altera Cyclone III FPGA
32 MiBMT48LC16M16 SDRAM
170 × 170Mini-ITX · millimetres
06Copper layers
02 / HARDWARE EXPLORER
Turn it around.
Take it apart.
Explore the native KiCad board and separate its component groups. Turn the board over, inspect the connections and show or hide its original silkscreen.
MIST ITX / NATIVE BOARDThe heart of the project.170 × 170 mm PCB · 6 copper layers
Preparing the hardwareLoading native CAD geometry…
Interactive 3D is unavailable. Explore the native renders and assembly drawings below.
View assembly guide ↓Native KiCad geometry
Drag to orbit · Scroll / pinch to zoom · Right-drag to pan
SHOW
SHOW
Native v1.9 Mini-ITX board, including Cyclone III, SDRAM, ARM control, USB, MIDI and analogue media interfaces.Geometry exported from the saved design
The board Inspect native geometry and printed markings.
Component groups Lift the upper parts and inspect the connections.
The drawings Five sheets cover assembly, stackup, routing and power.
03 / THE ARCHITECTURE
Reconfigurable by design.
Connected by purpose.
Explore the FPGA and memory, then follow the video, sound, controller and peripheral paths across the ITX board.
MIST ITX / FUNCTIONAL DESIGNPROGRAMMABLE CORE
The Cyclone III EP3C25 FPGA connects to a 16M × 16-bit SDRAM device, giving 32 MiB of memory. Dedicated clocks and an AT91SAM7S256 controller support configuration and system I/O.
FOLLOW THE DESIGN
A core with room to grow.
The Cyclone III EP3C25 FPGA connects to a 16M × 16-bit SDRAM device, giving 32 MiB of memory. Dedicated clocks and an AT91SAM7S256 controller support configuration and system I/O.
The loaded FPGA core and controller firmware determine system behaviour.
One board.
Distinct roles, working together.
Distinct roles, working together.
Explore a functional view of the design, then return to the native model to see the components themselves.
BENEATH THE COMPONENTS
6 copper layers.
A foundation for every signal.
Six copper layers provide the routing and ground references for the FPGA, SDRAM and peripheral circuits. The saved layer names mark In1.Cu, In3.Cu and B.Cu as ground layers.
Signals Ground Signals / power
Open the native stackup drawing ↗PCB CROSS-SECTIONTOP ↓ BOTTOM
- 01F.CuSignals / components
- 02In1.CuGround reference
- 03In2.CuSignals
- 04In3.CuGround reference
- 05In4.CuSignals
- 06B.CuGround / components
04 / THE PHYSICAL DESIGN
The shape of the hardware.
Every side has a purpose.
Use the native top and bottom views to inspect the physical layout, connector access and mounting before returning to the interactive model.
BOARD / TOP
BOARD / UNDERSIDENATIVE GEOMETRY · REVERSE SIDE
Turn it over. Follow the detail.
The underside view preserves the native pads, mounting holes and printed markings. The assembly book shows the corresponding reference drawing.
- Documentation
- Top + bottom assembly
- Other drawings
- Stackup · routing · power
- Board revision
- v1.9
PHYSICAL FORMAT
A full Mini-ITX footprint.
The 170 × 170 mm board combines rear-edge connectors with front-panel, power and service access.
CONNECTOR ACCESS
Check the whole assembly.
The 3D model includes the native projecting connectors. The PCB outline dimensions exclude those projections.
The physical design views show the current board. No separate enclosure CAD is included in this project presentation.
05 / THE ASSEMBLY BOOK
Good design.
Down to the details.
Start with top assembly, then turn the board over and explore its stackup, routing and power guides.
Open the 5-page board guide ↗01 / 05
Board / top assembly
06 / WHERE WE ARE
Real hardware.
A continuing story.
MiST ITX / v1.9
The saved 170 × 170 mm board combines Cyclone III logic, SDRAM and an AT91SAM7S256 controller.
Native six-layer PCB geometry and silkscreen.A wide peripheral mix
Four USB-A ports, two DB9 joystick ports, MIDI in/out, VGA, analogue A/V, tape and service headers surround the board.
The connector tour groups every external port and header.Load. Explore. Refine.
FPGA core and controller firmware determine which machines and peripheral features are available.
Use the assembly book to inspect the hardware behind each function.