PNI SENtral - Manual (Page 32)

PNI Sensor Corporation Doc #1018049 R03
SENtral Technical Data Sheet Page 31
6.1 Configuration Tool General Settings
6.1.1 SDK Revision
This establishes the revision of the firmware to be generated. Normally the latest
revision is most desirable, but prior revisions are retained for customers that have
qualified an older revision level.
6.1.2 Host Interrupt Pin
This establishes which GPIO pin is used to send an event interrupt to the host system.
The default is GPIO[6], but any of the GPIO pins can be used for this function.
6.1.3 EEPROM Max. Upload Speed
If the user incorporates a dedicated EEPROM to store the SENtral’s Configuration File,
then this field establishes the maximum data rate the configuration EEPROM can
accommodate. If there is no EEPROM, this setting has no meaning. SENtral
automatically determines if a dedicated EEPROM is present.
6.2 Configuration Tool Sensor Configuration
The sensors attached to SENtral must be configured correctly for SENtral to properly
function. The magnetometer, accelerometer, and gyroscope are configured in a similar
manner, so the parameters discussed below apply to all three sensors.
6.2.1 Sensor
The drop-down menus are used to select the sensor models incorporated into the user’s
system. If a sensor is not listed, then a driver has not been developed for that sensor.
6.2.2 Interrupt Pin
This drop-down menu establishes which General Purpose IO pin is used to send a sensor
interrupt signal to SENtral. As shown in the reference schematic, Figure 3-1, the default
is to use GPIO[0] for the magnetometer, GPIO[1] for the accelerometer, and GPIO[2] for
the gyroscope. However, the GPIO pins are interchangeable and can be configured as is
most convenient for the user.
6.2.3 Slave Address
This establishes the slave address for the respective sensor, and the user needs to input
the sensor’s slave address here. The 7-bit slave address will be provided in the sensor’s