1.2
Main board hardware architecture
Figure 2.
Main board functional block diagram
The figure above shows the functional block of the main board.
The connection of the blocks results in a robust architecture implementing a smart industrial sensor node
connected as IO-Link device.
The design is centered on the
microcontroller, which manages the IO-Link protocol mini-stack
code embedded to drive the
device transceiver.
The M8 4-way plug connector is strictly related to the
transceiver. This connector allows establishing half
duplex IO-Link communication with an IO-Link master and with a power supply rail (≤ 32 V).
The blocks on the left hand identify the sensors: the
6-axis inertial module device with machine
3-axis digital magnetometer.
1.3
Main board components
1.3.1
STM32G071EB
The STM32G071x8/xB mainstream microcontrollers are based on high-performance Arm
®
Cortex
®
-M0+ 32-bit
RISC core operating at up to 64 MHz frequency. Offering a high level of integration, they are suitable for a wide
range of applications in consumer, industrial and appliance domains, as well as Internet of Things (IoT) solutions.
These microcontrollers incorporate a memory protection unit (MPU), high-speed embedded memories (36 kbytes
of SRAM and up to 128 kbytes of Flash program memory with read protection, write protection, proprietary code
protection, and secure area), DMA, an extensive range of system functions, enhanced I/Os, and peripherals.
Optimized dynamic consumption, together with a comprehensive set of power-saving modes, low-power timers
and low-power UART, allows the design of low-power applications.
The devices operate within ambient temperatures from -40 to 125°C and with supply voltages from 1.7 to 3.6 V.
V
BAT
direct battery input allows keeping RTC and backup registers powered.
For further information, see the
relevant web page.
UM2942
Main board hardware architecture
UM2942
-
Rev 1
page 3/20
