ST AEKD-AICAR1, User Manual, Page: 23 / 39

4 AI-car sensing node
4.1 Precautions for use
The EMC performance of the AEKD-AICAR1 is detailed below:
• for emission, full compliance with EN IEC 61000-6-3 and EN 55032 standards
• for immunity, partial compliance with EN IEC 61000-6-1 and EN 55035 standards, as the kit is not immune to
the following types of disturbance:
–
continuous RF electromagnetic field disturbances at the frequency of 260 MHz (in vertical polarization
3 V/m) and 340 MHz (in horizontal polarization 3 V/m);
– continuous induced RF disturbances at the frequency of 43MHz @ 3V.
If exposed to the above disturbances, the kit might change its operation mode without recovering the previous
working condition.
During immunity tests, the kit achieved level C. This means that the kit was not damaged during the test, but
required the intervention of an operator to reset it. If the kit is exposed to these frequencies and shows changes in
the working condition, turn the kit off and switch it on again.
4.2 Hardware overview
The AEKD-AICAR1 AI-car sensing node consists of:
1. The AEK-MCU-C4MLIT1 , designed to address automotive and transportation applications and other
applications requiring automotive safety and security levels. The board exploits the functionality of the
SPC58EC80E5 32-bit automotive grade ASIL-B microcontroller with 4 MB flash memory, full access to
the two MCU cores, GPIOs and peripherals such as ISO CAN FD (with a transceiver), and UART. The
AEKD-AICAR1 uses the AEK-MCU-C4MLIT1 evaluation board to process discrete acceleration variations
(acquired from the three-axis IMU system) in order to run a pretrained neural network. Moreover, the board
drives the
AEK-LCD-DT028V1 LCD display board to show neural network results.
2. The AEK-CON-SENSOR1 with the STEVAL-MKI206V1 evaluation board, which embeds the AIS2DW12
IMU sensor. The AEK-CON-SENSOR1 connector board is designed to interface MEMS sensor boards in a
DIL 24 socket with SPC58 Chorus MCUs. The connector board includes a 1.8 V LDO voltage regulator to
supply the
AIS2DW12 inertial measurement sensor. The AIS2DW12 sensor is used to acquire acceleration
values on a three-axis reference system.
3. The AEK-LCD-DT028V1 , which hosts a 2.8” LCD display with resistive touch to display the graphical user
interface (GUI) and interact with the SPC58 Chorus family microcontrollers. The TFT LCD display has
a resolution of 240x320 pixels and features the resistive touch managed by an on-board touch screen
controller. Both the display and the touch are controlled via SPI by the MCU. The
AEK-LCD-DT028V1
display is used to show results of the LSTM neural network computation.
4. The power supply unit.
To power the
AEKD-AICAR1 , use the switch to choose one of the following options:
a. the internal battery pack with six AAA batteries;
b. an external 12 V DC power supply directly connected to the AEK-MCU-C4MLIT1 .
4.3 Software architecture overview
The AEKD-AICAR1 software architecture consists of three layers: low-level software, high-level software, and the
main application.
UM3053
AI-car sensing node
UM3053 - Rev 1
page 23/39