https://github.com/sstallion/pcba-pidp11ioexpander
16-Bit TTL compatible I/O expander for the PiDP-11 and Raspberry Pi
https://github.com/sstallion/pcba-pidp11ioexpander
altium gpio i2c pcba pdp-11 pidp-11 raspberry-pi
Last synced: about 1 month ago
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16-Bit TTL compatible I/O expander for the PiDP-11 and Raspberry Pi
- Host: GitHub
- URL: https://github.com/sstallion/pcba-pidp11ioexpander
- Owner: sstallion
- License: bsd-2-clause
- Created: 2021-07-17T03:54:08.000Z (over 4 years ago)
- Default Branch: master
- Last Pushed: 2021-10-16T21:08:51.000Z (about 4 years ago)
- Last Synced: 2025-06-30T10:03:27.601Z (4 months ago)
- Topics: altium, gpio, i2c, pcba, pdp-11, pidp-11, raspberry-pi
- Language: Rich Text Format
- Homepage: https://hackaday.io/project/181311
- Size: 97.7 KB
- Stars: 2
- Watchers: 3
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- Contributing: CONTRIBUTING.md
- License: LICENSE.txt
Awesome Lists containing this project
README
# PiDP-11 I/O Expander PCBA
This repository contains the PCBA design files for a 16-bit TTL compatible I/O
expander for the [PiDP-11][1] and [Raspberry Pi][2]. Design files are intended
to be viewed using [Altium Designer][3]. Releases may also be uploaded to the
standalone [Altium 365 Viewer][4] for free.
Project documentation is hosted on [Hackaday][5] and assembled boards are
available for purchase from [Tindie][6].
## Details
A test fixture was created to support functional testing of PCBs. The fixture is
based on a [Merifix MF300][7] with a custom interposer controlled by a [Total
Phase Aardvark][8] and a [B&K Precision 1785B][9] benchtop power supply.
Functional tests were developed in Python using the [OpenHTF][10] hardware
testing framework.
To execute functional tests, follow these steps:
1. Install the [Chocolatey][11] package manager for Windows.
2. Using Windows Explorer, navigate to the `Python` folder and right click on
the `setup.cmd` command file and select `Run as administrator`. This will
install dependencies and create a Python virtual environment for testing.
3. Double click on the `fct_station.cmd` command file in the `Python` folder to
start the FCT test station.
4. You can interact with the test station from either the command window, or by
pointing a browser to http://localhost:4444.
5. Enter the DUT serial number to begin testing using the keyboard or hand
scanner (eg. Symbol LS2208).
For more details, see the latest release on [GitHub][12].
## Contributing
Pull requests are welcome! See [CONTRIBUTING.md] for more details.
## License
Source code in this repository is licensed under a Simplified BSD License. See
[LICENSE.txt] for more details.
[1]: https://obsolescence.wixsite.com/obsolescence/pidp-11
[2]: https://www.raspberrypi.org/
[3]: https://www.altium.com/altium-designer/
[4]: https://www.altium.com/viewer/
[5]: https://hackaday.io/project/181311
[6]: https://www.tindie.com/products/24781
[7]: https://www.merifix.com/docs/Merifix-MF300-Brochure.pdf
[8]: https://www.totalphase.com/products/aardvark-i2cspi/
[9]: https://www.bkprecision.com/products/power-supplies/1785B-0-18vdc-0-5a-programmable-dc-supply-w-rs232-interface.html
[10]: https://github.com/google/openhtf
[11]: https://chocolatey.org/install
[12]: https://github.com/sstallion/PCBA-PiDP11IOExpander/releases/latest
[CONTRIBUTING.md]: CONTRIBUTING.md
[LICENSE.txt]: LICENSE.txt