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https://github.com/patrickbaus/pyasyncgpib

An AsyncIO wrapper for linux-gpib
https://github.com/patrickbaus/pyasyncgpib

asyncio asyncio-api-wrapper gpib linux-gpib python

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An AsyncIO wrapper for linux-gpib

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# async_gpib
Python3 asyncio [Linux GPIB Wrapper](https://linux-gpib.sourceforge.io/). The library requires Python
[asyncio](https://docs.python.org/3/library/asyncio.html) and is a thin wrapper for the threaded Linux GPIB Wrapper
library.

The library is fully type-hinted.

## Supported Devices

### Instruments
|Device|Supported|Tested|Comments|
|--|--|--|--|
|[Fluke 5440B](https://github.com/PatrickBaus/pyAsyncFluke5440B)|:heavy_check_mark:|:heavy_check_mark:| |
|[HP 3478A](https://github.com/PatrickBaus/pyAsyncHP3478A)|:heavy_check_mark:|:heavy_check_mark:| |

## Setup
There are currently no packages for Linux GPIB available on all platforms. To install the library it is required to
install Linux GPIB.

### Linux GPIB:
These instructions are for Ubuntu:
```bash
sudo apt install subversion build-essential autoconf libtool flex bison python3-dev
svn checkout svn://svn.code.sf.net/p/linux-gpib/code/trunk linux-gpib-code
cd ~/linux-gpib-code/linux-gpib-kernel
make
sudo make install # ignore the signing errors
sudo groupadd gpib # seems not to be installed
sudo modprobe ni_usb_gpib
cd ~/linux-gpib-code/linux-gpib-user
./bootstrap
./configure --sysconfdir=/etc
make
sudo make install
sudo ldconfig
```

### Linux GPIB Python module:
Once Linux GPIB is installed, you can either install the python package or use the `gpib-ctypes` package.
```bash
python3 -m venv env # virtual environment, optional
source env/bin/activate
pip install -e ~/linux-gpib-code/linux-gpib-user/language/python/
```

### async_gpib Python module
The package can be directly installed via Pypi:
```bash
python3 -m venv env # virtual environment, optional
source env/bin/activate
pip install async-gpib
```

## Usage
Initialize the GPIB adapter
```python
from async_gpib import AsyncGpib

# Create a controller and talk to device address 22
async with AsyncGpib(name=0, pad=22) as gpib_device:
# Add your code here
...
```
See [examples/](examples/) for more working examples.

## Support for Multiple Devices
> :warning: **Concurrency with multiple devices**: Note, that when using a single adapter to control multiple devices,
> there is no concurrency on the GPIB bus. This means, there is **no** speed increase, when making asynchronous reads
> from multiple devices on the bus regarding the transfer time.

## Versioning
I use [SemVer](http://semver.org/) for versioning. For the versions available, see the
[tags on this repository](../../tags).

## Documentation
I use the [Numpydoc](https://numpydoc.readthedocs.io/en/latest/format.html) style for documentation.

## Authors
* **Patrick Baus** - *Initial work* - [PatrickBaus](https://github.com/PatrickBaus)

## License
This project is licensed under the GPL v3 license - see the [LICENSE](LICENSE) file for details