Hobby computer ZX Evolution

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Hobby computer ZX Evolution is Spectrum-compatible, but has some extension and use modern peripheries.

Design: Vadim Akimov (LVD), Roman Chunin (CHRV), Dmitry Dmitriev (DDP).

Z80 3.5 MHz (classic mode)/ 7 MHz (turbo mode without CPU wait circles)/ 14 MHz (mega turbo with CPU wait circles);
4 Mb RAM, 512Kb ROM;
MiniITX board (172x170mm), 2 ZXBUS slots, power ATX or +5,+12V;
Based on fpga (Altera EP1K50);
Peripheral MCU ATMEGA128;
PS/2 keyboard and mouse support;
Floppy (WDC1793) Beta-disk compatible interface, IDE (one channel, up to 2 devices on master/slave mode), SD(HC) card, RS232;
Video out: RGB, VGA (scandoubler);
Sound: AY, Beeper, Covox (PWM);
Original keyboard and joystick support;
Tape interface (in/out);
Real-time clock.

List of monitors tested for compatibility with ZX EVolution is here.

Test program for monitors is here.

Forum is here.

Principal scheme (revision C) is here.

Montage scheme (revision C) is here.

Bill of material (revision C) is here.

User guide (revision C) is here.

Hardware source (revision C) here [PCAD2002] (not used for commercial purposes).

Prices: here.

Name	Version	Description	Documentation	Files
EVO RESET SERVICE EVO DOS EVO PROF	0.49c 0.29a 0.14	ZX service ROM for ZXEvo onboard ROM Flash via previous version or TEST&SERVICE configuration. Author: Savelij.	evo_reset_service.pdf evo_dos.pdf evo_reset_service_history.pdf evo_dos_history.pdf evo_prof_history.pdf	evoreset049c.zip
*BASECONF*	2012.02.13	Base configuration from NedoPC. ATMEGA128 MCU base configuration. Flash via BOOTLOADER. Authors: CHRV (ATMEGA128), LVD (EP1K50QC208).	zxevo_base_configuration.pdf	baseconf20120213.zip
*BOOTLOADER*	2012.01.24	Bootloader for ATMEGA128 MCU. Flash via hardware programmer. Author: DDp.	zxevo_firmware_update.pdf	bootloader20120124.zip
*TEST&SERVICE*	2012.01.24	Testing and tuning ZXEvo. Useful tool for users whose solder board by itself. ATMEGA128 service configuration. Flash via BOOTLOADER. Author: DDp.	zxevo_testservice.pdf zxevo_testservice_flash.pdf	testservice20120124.zip

Sources mirror (SVN) accessed from Google Code.

WARNING: These ROM's not designed in NedoPC. Please any questions mail to authors. NedoPC not support ROM's from other authors.

Name	Version	Description	Documentation	Files
*ScorpEvo*	05 (06.12.2010)	Scorpion Evolution (ScorpEvo) compatible with Sergey Zonov's «Scorpion ZS 256 turbo+».	scorpevo.pdf	scorpevo05.zip

Revision C:
Changes:

Revision B:
Changes:

Correct PS/2 connectors pattern;
Correct ОЕ on ICS501;
Increase 78M05 pattern;
Add jumper for disabling 12V on slots;
Correct ATX power connectors pattern;
Increase ferrites pattern;
Decrease boards sizes;
Remove jumper for enabling MCU programming;
Correct 4148 pattern;
Add ZXBUS 1st pin direction;
Correct WD1793 reset;
Correct FDD pattern (add key pin);
Add texts to board ("HDD Led", "PWR Led", "ZX Keyboard/ZX Joystick", "Slot1", "Slot2");
Correct location of VGA connector.

Principal scheme (revision B) is here.

Montage scheme (revision B) is here.

Bill of material (revision B) is here.

User guide (revision B) is here.

Revision A:
First version.

Principal scheme (revision A) is here.

Montage scheme (revision A) is here.

Bill of material (revision A) is here.