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KiCad projectAll 71 files, ready to open in KiCad27 MB

For fabricationGerbers, drill, pick-and-place and BOMGerbers and drill zip917 KB Gerbers and drill zip: mist1010956 KB Gerbers and drill zip: mist1010919 KB Gerbers and drill zip: mist1010925 KB Gerbers and drill zip: mist1010947 KB Gerbers and drill zip: mist1010935 KB Gerbers and drill zip: mist1010_covers108 KB Gerbers and drill zip: mist1010_covers92 KB Gerbers and drill zip: mist1010_covers98 KB Gerbers and drill zip: mist1010_covers108 KB Gerbers and drill zip: mist1010_covers116 KB Pick and place (CSV)24 KB Pick and place (CSV): mist101024 KB Pick and place (CSV): mist101024 KB Pick and place (CSV): mist101022 KB Pick and place (CSV): mist101022 KB Pick and place (CSV): mist101022 KB Pick and place (CSV): mist1010_covers35 B Pick and place (CSV): mist1010_covers103 B Pick and place (CSV): mist1010_covers103 B Pick and place (CSV): mist1010_covers35 B Pick and place (CSV): mist1010_covers35 B BOM CSV143 KB

Schematic PDFEvery sheet, to read or print723 KB

3D modelThe board with its parts, for an enclosure (GLB)3D model (GLB)2.1 MB 3D model (GLB): mist10101.9 MB 3D model (GLB): mist10102.1 MB 3D model (GLB): mist10102.1 MB 3D model (GLB): mist10101.9 MB 3D model (GLB): mist10101.9 MB 3D model (GLB): mist1010_covers508 KB

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README

MIST.1010

10x10cm PCB variant of MIST FPGA project

Tech specs:

EP3C25E144 FPGA
32/64Mb SDRAM
VGA/RGB video output
Composite video + audio output via 3.5 jack connector (raspberry-pi compatible pinout)
4xUSB ports for keyboard, mouse and joysticks
2xDB-9 ports for Amiga mouse and joysticks
SD/microSD card slot
RTC (clock) with battery
Tape input / output
ESP8266 WiFi module
MIDI input and output (starting from rev.C)
Type C (starting from rev.D) or MicroUSB power supply
Board optimized for G738 and G706 cases

Some random photos: link

Changelog

Rev.A - first revision. Please note the errata.
Rev.A1:
- fixed all rev.A issues
- LM3940IS-3.3 replaced to NCP1117-3.3
- sound output circuit has been replaced with the original one from the MIST 1.3 circuit
- C39, C40, C80 tantalum capacitors has been replaced by aluminum electrolytic capacitors
- added ARM's "erase" testpoint
- removed useless internal speaker
Rev.A2:
- C41, C68, C69 10uf ceramic capacitors has been replaced with 22uf tantalum
- added C74 ceramic capacitor near ESP-01 module

Comments

About

10x10cm PCB variant of MIST FPGA project for G738/G706 enclosure

fpga mist mist-board pcb

LICENSE
44 stars
0 comments
18 downloads

Updated Sep 30, 2026

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Rev.B:

added ESP-12E/F footprint (ESP-01 is still an option)
added MIDI input and output
removed U11 - AD724 encoder
added resistors-based CVBS (Y+C) video circuit
added JP4 solder jumper to disconnect CVBS circuit from 3.5mm jack
added U16 buffer with dedicated power source U17 for audio 1-bit DAC
added USB 2.54mm header
tuned SDRAM traces length for better match with MIST v1.3 PCB
changed U6 (attiny) footprint from DIP to SOIC
changed Y1 and Y2 footprints from THT to SMD
changed 1117-3.3 footprint from TO-252-2 to SOT-223-3
added U12 dedicated +3.3V power source for SD card and WiFi
3mm front leds replaced by 5mm
R38 (VGA's +5V 0Ω resistor) has been replaced by solder jumper
changed tape header pinout
pcb corners are rounded now
experimental reset circuit based on MAX809
various changes in board layout

Rev.C:

used USB Type C instead of Micro USB
PJ-320 3.5mm jack replaced by PJ-322
added solder jumper to select 3.5mm jack CVBS pinout
improved power distribution for FPGA chip
removed U16 buffer for DAC as it didn't bring any benefits
marked C27 and C28 as DNP
reverted to old reset circuit
various minor changes in board layout

Rev.C1:

changed R47 from 220Ω to 1kΩ to reduce power led brightness
slightly moved C87 and C89

Useful links

MIST wiki: link
MIST cores and firmwares: link

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