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BCON Interface
5.5
I²C Interface
The camera is configured via a standard I²C interface. For a detailed description, refer to the
I²C-bus Specification and User Manual. The download link is provided in Section 1.3 on
5.5.1
I²C Features
In addition to the mandatory I²C features, the Basler dart BCON camera uses the optional Clock
Stretching feature.
For detailed information about the features, see the I²C-Bus Specification and User Manual.
Clock Stretching
The Basler dart BCON camera uses clock stretching, i.e. it may hold I2C_SCL low.
When designing your system, make sure that the I²C master can handle clock
stretching.
5.5.2
Basler Specifics
The following sections provide information about settings that deviate from the I²C bus
specifications.
The control channel of the BCON interface is designed as an I²C bus interface. A Basler BCON
camera is an I²C slave device that can handle data transfers at up to 400 kbit/s ("Fast Mode"
according to I²C).
Fast Mode (Fm) devices are downward compatible and can communicate with Standard Mode (Sm)
devices in a 0 to 100 kbit/s I²C bus system.
However, as they are not upward compatible, Fast Mode devices should not be integrated in an I²C
bus system that is configured for a faster mode, i.e. Fast Mode Plus (Fm+) or High Speed Mode
(Hs). Fast Mode devices cannot follow the higher transfer rate of the faster modes. Therefore,
unpredictable states might occur.
These limitations have to be observed when designing the I²C bus master.
5.5.2.1
Additional I²C Control Line (I2C_ID)
In addition to the standard I²C control lines (I2C_SDA data line, I2C_SCL clock line), there is an
additional I²C control line, the I2C_ID line.
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2.
Basler dart BCON
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