2 layers165.6 × 94 mm
ECK-88
BryanOrabutt/ECK-88
This project is an attempt to recreate the Intel ECK-88 development kit using KiCAD software to recreate the board and schematics.
181 partsMIT
2 layers
This project is an attempt to recreate the Intel ECK-88 development kit using KiCAD software to recreate the board and schematics.
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 28
- Nets
- 9
- Pads
- 48
- Tracks, vias
- 10, 0
- Pours
- 5
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 22 Sep 2017
- Updated
- 10 Nov 2021
Overview
Buck is an open-source printed circuit board by BryanOrabutt, from the BryanOrabutt/ECK-88 repository on GitHub, published under the MIT licence. It is a 2-layer board with 28 parts on 9 nets, routed with 10 tracks and 0 vias.
It is built around the TPS54302 and STPS5L60U. Its parts include 5 capacitors, 2 resistors, 1 IC, 1 diode and 1 inductor. It belongs with the power boards of this library.
Main components
2README
README.mdECK-88
This project is an attempt to recreate the Intel ECK-88 development kit using KiCAD software to recreate the board and schematics. There have been some additions to the board to aid in both educational and demonstrational use. These new additions are outlined below:
- Every address, data, and control signal is broken out to an IO header to allow for logic analyzer probing.
- Every address, data, and most control signals are broken out to LEDs for use when single stepping.
- A clock select was added that allows selection between the main 4 Mhz clock, an external clock, and a debounced push button for single stepping.
- All GPIO lines are broken out to headers (rather than no connect from the original ECK-88)
- All chips are socketed to allow replacement and reprogramming with ease.
- DC Barrel jack and LM1084 linear regulator added to allow wide range of power inputs.
Modification
If you wish to make any modifications to the current board, all of the files are designed in KiCAD. The KiCAD software can be obtained here: http://kicad.org/. All of the custom symbols and footprints are found in the Libraries and Libraries.pretty folders and will need to be manually added to the KiCAD library search path. The board was designed to meet the requirements of OSH Park's fabrication rules. For more information see: http://docs.oshpark.com/design-tools/kicad/
License
This project is licensed under the MIT License - see the LICENSE file for details
Parts
28| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 4.7uF | Capacitors_SMD:C_1206_HandSoldering | C2, C3 |
| 1 | 100nF | Capacitors_SMD:C_0805_HandSoldering | C4 |
| 1 | 10K±0.1% | Resistors_SMD:R_0805_HandSoldering | R2 |
| 1 | 10nF | Capacitors_SMD:C_0805_HandSoldering | C1 |
| 1 | 220uF | Capacitors_SMD:CP_Elec_5x5.3 | C5 |
| 1 | 22uH | footprints:SRR1208-220ML | L1 |
| 1 | 30.9K±0.1% | Resistors_SMD:R_0805_HandSoldering | R1 |
| 1 | STPS5L60U | Diodes_SMD:D_SMA_Handsoldering | D1 |
| 1 | TPS5430 | Housings_SOIC:TI_SO-PowerPAD-8 | U1 |
The 10 most common of 28 parts.
Questions
What parts does the Buck use?
28 parts, built around the TPS54302 and STPS5L60U. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Buck KiCad files?
From the BryanOrabutt/ECK-88 repository on GitHub, at the commit this page was made from: the board is 8088/buck.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Buck design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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