MLX90363 Datasheet, PDF (44/57 Pages) Melexis Microelectronic Systems – Triaxis® Magnetometer IC With High Speed Serial Interface

MLX90363
Triaxis® Magnetometer IC
With High Speed Serial Interface
19. MLX90363 Firmware Flowcharts
19.1. Start-up sequence
The entry in operation mode is preceded by a startup phase or startup sequence, performing the built-in
self tests (performed only once), the automatic analog gain adjustment, the temperature acquisition and a
first execution of the built-in self diagnostics (also performed continuously afterwards). The start-up
sequence ends with the enabling of the serial interface.
Start-up Sequence on POR
BIST RAM
BIST Watchdog
BIST EEPROM CRC+DED
RAM and IO Space Initialization
SCI, ADC Driver Initialization
Automatic Gain Control
(6 x Signal Processing)
Temperature Acquisition
Digital Diagnostics First Pass
ROM, RAM, CPU, EE CRC
Analog Diagnostics First Pass
ADCMonitor, TempMonitors...
Enable SCI Communication
SO = Ready
Background
Figure 26 – Firmware start-up sequence
3901090363
Rev. 005
Page 44 of 57
Data Sheet
Jul/13