1.18 Use Cases 145
1.18.6.1 Working with the I2C interface (I2C Control)
1.18.6.1.1 Introduction As mentioned in the Device specific interface layout section of the "mvIMPACT Ac-
quire API" manuals, the "I2CControl" is a feature which allows the mvBlueFOX device to communicate with
custom-specific peripherals via the I2C interface.
1.18.6.1.2 Setting up the device The following steps will explain how to connect the mvBlueFOX with an I2C
device. In this use case, a LM75 I2C Digital Temperature Sensor is used:
Figure 1: wxPropView - I2C Interface Control
1. Start wxPropView (p. 68)
2. Initialize the mvBlueFOX device
3. Navigate to "Digital I/O -> I2CControl"
4. Enter the connection settings to address the I2C device memory (4).
E.g. to read the temperature of the example sensor, set I2CDeviceAddress to "0x09F".
5. Set I2CDeviceSubAddress to "0x00", because reading the temperature of this sensor does not need a sub
address.
6. Set I2CBufferLength (5) to 2, because this sensor stores the temperature in a register of two bytes length.
7. Set the I2COperationMode (1) to Read. The least significant bit (LSB) of the device address will automati-
cally be overwritten by 0 for writing and by 1 for reading.
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