HardLabs

Call stack

emperor-hadrian·stack_machine·kicad/boards_version_2/call_stack_v2/call_stack.kicad_pcb

Call stack PCB layout, top view — open source board by emperor-hadrian
Simulate this board

About the Call stack PCB

Call stack is an open source PCB design by emperor-hadrian, published on GitHub. It is a 2-layer board measuring 140.5 × 100 mm, with 27 components from 6 distinct parts.

From the project

Design for a DIY computer

The timing will be completely redone: A single normal clock signal, not the stupid "AB Alternating" I made up for the original. The PC will be incremented and a new instruction fetched during any non-flow-control instructions except when the GPRAM is used and the PC is in the same RAM chip (the RAM chips have 15 address lines each) as whatever is being accessed. The bus timing will also be very flexible and will be faster when possible but still slow when the memory is being accessed twice for example. Bus read/write addresses are both now 5 bits. The WRITE/MOVE instruction formats will…

Call stack, from the project README
From the project README

Call stack bill of materials (BOM)

27 components, 6 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
~
U1
2
~
U2, U10
6
~
U3, U6, U7, U8, U9, U11
2
~
U4, U5
10
~
U12, U13, U14, U15, U16, U17, U18, U19 +2
6
~
U21, U22, U24, U25, U26, U27

Call stack design files

The KiCad project lives in the emperor-hadrian/stack_machine repository on GitHub; these links point at the commit this page was built from.

Call stack: common questions

How big is the Call stack PCB?

The Call stack measures 140.5 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Call stack?

27 components, from 6 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Call stack design files?

From the emperor-hadrian/stack_machine repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Call stack design in my own project?

The repository has no license, so all rights stay with emperor-hadrian. Use it as a reference, and ask the author before reusing the design.

More boards in stack_machine