Project page for speed3ple:

Mostly Z80 ECB stuff here…

System/Board StatusComments
ECB-backplane-4 2 x working Nice little test bench
ECB-backplane-8 1 x working This is the backplane I use the most, has a LPS42 power inside. Plan to build one more.
ECB-backplane-12 1 x working I got a Siemens 505-6508 PLC case for this. Still trying to figure out a power and wire placement in that case.
ECB-SBC-v2-3a 3 x working Solid board, no trouble at 4, 8 and 10Mhz. 1 built with vintage 7400 TTL at 8Mhz.
ECB-SBC-v2-4z 2 x working Works fine at 10Mhz w/TTL+CMOS Z80. Got sound, speed switch works, recovery mode switch not tested yet.
ECB-SBC-v5i 1 x working Seems to be working and stable at 10Mhz with LS logic and RomWBW v3.0.1. I'm testing this now. Looks great!
ECB-Z180 mk4 2 x working Solid board, no trouble. Works good at (1:1)18.432Mhz with pure LS logic. Got 3 fake Z180 cpu first…
ECB-KISS-68030 1 x under construction I'm struggling with this… bad parts?
ECB-MF-PIC 2 x under construction Project startup…
ECB-DiskIO v3 4 x working Angled IDE connector for easy topside CF card access
ECB-DualSD 1 x working Works fine with SBC v4z (12Mhz). PCB made from the new Gerber files (Thanks!).
The SD card sockets I have (ebay) needed bending of WP pin.
ECB-RamFloppy 2 x working R11 version. Built with 8 x xAS6C4008. I used a TLC7705D SMD version. Good read/write speeds!
ECB-Cassette IF 2 x working Built both version, 300+600 baud. Value of timing capacitor C2 is critical.
ECB-VDU 1 x under construction waiting for parts…
ECB-VGA3 1 x under construction Does not work yet. Maybe got some bad parts?
ECB-PropIO v2 3 x working Runs firmware from RomWBW v2.9.1(v0.95).
ECB Zilog Peripheral 1 x under testing PCB v2, with 1xDART, 2xPIO and CTC.
ECB-4PIO-R04 1 x working I got it working, will make a new cable and test more.
DSKY 1 x working Completed and is working
ECB-Bus Monitor 1 x under test Blinkenlights blinks, but I don't fully understand how to use this…
ECB-USB-FiFo 1 x under test
ECB-Prototype-III 3 x under construction
ECB-ATB 1 x under test Got this working, i think, but…
Non-ECB systems:
Zeta 2 2 x working Stable at 16Mhz(LS) and 20Mhz (AHCT). 1 built into a metal case together with ParPortProp as a unit
Easy-Z80 1 x working Small and easy to build. I got the v1.1 pcb. Nice! Update: I connected a RC2014 IDE board for CF card storage.
Z80-GrantS 1 x working Small pcb based on Grant Searle Z80. Runs basic.
Z80-Trainer 1 x working Big 4 layer board by smbaker. Has keyboard and optional TIL311s or LCD1602. Runs RomWBW. Designed w/CTC, PIO, SIO/2External RC2014 bus.
ISA bus boards:
ISA Micro8088 1 x working
ISA backplane 1 x working
ISA XT-IDE 2 x under testing
ISA Super-VGA 1 x working
ISA-XT-CF-Lite 2 x working
ISA-FDU-Serial 1 x working
ISA-RTC 1 x under construction
RC2014 boards:
RC2014-IDE 1 x under construction IDE I/F based on 8255 chip
RC2014-RTC 1 x under construction Real-time clock based on 1302 chip

2048 game in RomWBW:

(Seems to only work with serial cable)
“Hidden” Easteregg in RomWBW (Mandelbrot ascii art) www.retrobrewcomputers.org_lib_plugins_ckgedit_fckeditor_userfiles_image_builderpages_speed3ple_images_img_20200324_174724small.jpg

builderpages/speed3ple/start.txt · Last modified: 2021/04/16 04:36 by speed3ple
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