Bootloader - Aceinna IMU383 Series User Manual

IMU383ZA Series User's Manual
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Method 1- Using the Sensor Sampling Indicator (Pin 1)
When the user requires finer knowledge of the instant that data is sampled, the IMU383 provides
the ability to determine when the sensor read is performed. A falling edge of the signal provided
on pin 1 indicates when the inertial sensors are sampled. The rising edge of the 1kHz clock
immediately preceding the data ready signal is the active edge of the clock.
Method 2- Using the Timestamp Registers in the Extended Burst Message
The extended burst message described on page 15 contains two values called TIMESTAMP1
AND TIMESTAMP2. These values contain the time offset in microseconds relative to the active
edge of the 1kHz clock used to generate the most recent data ready signal. TIMESTAMP1 is the
delay from the sensor sampling point to the active edge of the 1kHz clock; TIMESTAMP2 is the
delay from the active edge of the 1kHz clock to the data ready signal. Note that the active edge of
the 1kHz signal is the rising edge immediately preceding the data ready signal.

Bootloader

The IMU383 possesses the capability to upgrade the firmware via an on-board bootloader. See
Section 9 for a description of the process.
Doc# 7430-1398-01 Page 29
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