Released:
Concurrency agnostic serialio API
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Project description
A python concurrency agnostic serial line library.
Helpful when handling with instrumentation which work over serial line and implementsimple REQ-REP communication protocols (example:SCPI).
Besides local serial line, serialio also supports serial line over RFC2217 protocol,raw TCP socket and tango.
As far as RFC2217 is concerned, it should be compatible with:
- ser2net bridge with telnet(RFC2217) and raw configurations
- gserial[ser2tcp] bridge (RFC2217)
As far as tango is concerned, it should be compatible with the tango classes:
Base implementation written in asyncio with support for different concurrency models:
- asyncio
- classic blocking API
- future based API
Here is a summary of what is forseen and what is implemented
| Concurrency | Local | RFC2217 | Raw TCP | Tango |
|---|---|---|---|---|
| asyncio | Y | Y | Y | Y |
| classic sync | Y | Y | Y | Y |
| conc. futures | Y | Y | Y | Y |
Installation
From within your favourite python environment:
Usage
asyncio
local serial line
raw TCP socket
RFC2217 (telnet)
Tango
Ploutab 2.3 Serial Numbers
(needs a pip install serialio[tango] installation)
classic
concurrent.futures
API differences with serial
- coroutine based API
open()coroutine must be called explicitly before using the serial line- setting of parameters done through functions instead of properties (ie:
await ser_line.set_XXX(value)instead ofser_line.XXX = value(ex:await ser_line.set_baudrate())) - custom
eolcharacter (serial is fixed tob'n') - included REQ/REP atomic functions (
write_read()family)
Features
The main goal of a serialio Serial object is to facilitate communicationwith instruments connected to a serial line.
The most frequent cases include instruments which expect a REQ/REPsemantics with ASCII protocols like SCPI. In these cases most commandstranslate in small packets being exchanged between the host and theinstrument.
Ploutab 2.3 Serial Killer
REQ-REP semantics
Many instruments out there have a Request-Reply protocol. A serialio Serialprovides helpful write_read family of methods which simplify communicationwith these instruments.
Custom EOL
In line based protocols, sometimes people decide n is not a good EOL character.A serialio can be customized with a different EOL character.For example, the XIA-PFCU alwaysreplies with ;rn, so we could configure it using the following snippet:
The initial EOL character can be overwritten in any of the readline methods.Example:
Streams
TODO: Write this chapter
Release historyRelease notifications | RSS feed
2.4.0
2.3.2
2.3.1
2.3.0
Ploutab 2.3 Serial Number
2.2.2
2.2.1
Ploutab 2.3 Serial Key
2.2.0
2.1.1
2.0.0
1.3.0
1.2.0
1.1.0
1.0.1
1.0.0
0.1.2
0.1.1
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