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Fill Memory Board

roberto314·Unicomp2·not produced boards/Fill_Memory_Board/Fill_Memory_Board.kicad_pcb

Fill Memory Board layout, top view — open source STM32 board by roberto314
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About the Fill Memory Board

Fill Memory Board is an open source STM32 PCB design by roberto314, published on GitHub. It is a 2-layer board measuring 100 × 100 mm, with 39 components from 13 distinct parts.

Its main chip is the STM32F411, from the STM32 family. Other key parts include the 74LS125, 74LS165, 74LVC595, 74AHC1G14 and 74LVC138. By type, the board carries 18 connectors, 9 ICs, 6 capacitors, 5 resistors and 1 transistor.

It belongs with the retro computing designs in this gallery.

From the project

A modular 8-bit Computer able to recreate (nearly) every Retro computer of the late 70s to mid 80s.

A modular 8-bit Computer able to recreate (nearly) every microcomputer of the mid 70s to early 80s in Hardware without FPGAs (although an FPGA can be added). Can also be used as a teaching tool for:

VHDL or Verilog C RTOS (STM32F401 runs ChibiOS Link: https://www.chibios.org) Python bash and linux in general (Olimex board runs linux with fbterm and tmux) Harwaredesign Timing of CPUs maybe Assembler SPI and I2C Interfaces CPLDs and FPGAs

Fill Memory Board, from the project README
From the project README

Main components on the Fill Memory Board

74LS12574LS16574LVC59574AHC1G1474LVC13874HC590

Fill Memory Board bill of materials (BOM)

39 components, 13 distinct parts.

QtyPartRefs
1
74LS125
U1
1
74LS165
U9
1
74LVC595
U10
1
74AHC1G14
U12
2
74LVC138
U16, U17
3
74HC590
U18, U19, U20
1
PMV450ENEAR
Q1
4
BUS
J1, J2, J3, J4
1
STM32F411
J6
3
Conn_01x32
J20, J21, J32
10
Conn_01x38
J22, J23, J24, J25, J26, J27, J28, J29 +2
6
100n
C1, C2, C4, C8, C9, C10
5
10k
R7, R8, R9, R10, R11

Fill Memory Board design files

The KiCad project lives in the roberto314/Unicomp2 repository on GitHub; these links point at the commit this page was built from.

Fill Memory Board: common questions

What microcontroller does the Fill Memory Board use?

The Fill Memory Board is built around the STM32F411, from the STM32 family.

How big is the Fill Memory Board?

The Fill Memory Board measures 100 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Fill Memory Board?

39 components, from 13 distinct parts. The full bill of materials is listed on this page.

Where can I download the Fill Memory Board design files?

From the roberto314/Unicomp2 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Fill Memory Board design in my own project?

The repository has no license, so all rights stay with roberto314. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Fill Memory Board without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

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