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-------------------------------------------------------------------------------
Onewire/OWFS dumps
-------------------------------------------------------------------------------
This directory contains 1-Wire aveforms generated with OWFS.
Details:
TODO.
Tools used:
- Logic Analyzer: Tektronix TLA 613
- Software: owfs 2.8p15
- 1-Wire master: home made from
- PL2303 (USB to UART)
- DS2480B (UART to 1-Wire)
1-Wire MicroLan:
Two thermometers were attached to the bus (only the data line was connected,
power was not):
- DS28EA00 (1-Wire Digital Thermometer with Sequence Detect and PIO)
- DS18B20 (Programmable Resolution 1-Wire Digital Thermometer)
The server was started as:
$ owserver -d /dev/ttyUSB0
owdir.sr (samplerate = 1MHz)
----------------------------
A request to list devices connected to the bus was performed:
$ owdir
/28.9BCFC8000000
/42.A8A603000000
/bus.0
/uncached
/settings
/system
/statistics
/structure
/simultaneous
/alarm
DS18B20.sr (samplerate = 1MHz)
------------------------------
A read temperature request was performed for the specified device:
$ owread /28.9BCFC8000000/temperature
25.5
DS28EA00.sr (samplerate = 1MHz)
-------------------------------
A read temperature request was performed for the specified device:
$ owread /42.A8A603000000/temperature
26.875
Conversion from TXT to sigrok dumps
-----------------------------------
The provided dumps were exported from a Flextronix TLA 613 logic analyzer
(as text files). A simple Python script was used to convert these dumps,
first into a binary file and then into a sigrok session file.
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