NXP Semiconductors
MCU-SMHMI-UG
Smart HMI User Guide
the maximum flexibility to customize and define products for a multitude of different use
cases.
The i.MX RT117H MCU is licensed to run NXP’s facial biometric authentication library,
audio front-end runtime library, and ML speech engine runtime library, which includes:
•
Unified cross-platform framework
•
Camera drivers, image capture, and pre-processing
•
Face detection, tracking, alignment, and recognition (with quantified results and
confidence measure)
•
Voice seeker Audio Front-End (AFE) for Acoustic Echo Cancellation (AEC), Noise
Reduction (NR), beamforming, and barge-in
•
Conversa for full duplex speakerphone
•
Cyberon or Voice Intelligent Technology (VIT) for automatic speech recognition (wake
words and commands)
•
Display drivers, 2D graphics accelerator supported by LVGL
•
Built-in security, bootloader, and application validation
•
All drivers, including Bluetooth Low Energy and Wi-Fi
•
USB mass storage device updates
•
Support secure firmware update over a wireless connection
•
Factory automation scripts
•
Supported by an MCUXpresso SDK, MCUXpresso IDE, and configuration tools
1.2 Voice library limitations
Voice seeker AFE and Cyberon ASR libraries are provided with our SLN-TLHMI-IOT
projects as evaluation versions.
Note:
Voice seeker AFE stops working after 25 hours, while Cyberon ASR stops working
after 100 detections.
To have voice detection work again, a power cycle is required when either one of these
thresholds is met.
Production versions of the libraries can be shared upon request.
2 Recommended configuration
Modifying and debugging the SLN-TLHMI-IOT example projects requires an up-to-date
computer that can run
version
11.5.0
.
Note:
Both the 11.5.1 and 11.6.0 versions have bugs preventing the SLN-TLHMI-IOT
development experience from working as intended.
Computer type
OS version
Terminal program
Apple
MAC OS
PuTTY
PC
Windows 7/10/11
PuTTY/Tera Term
PC
Linux
PuTTY
Table 1. Recommended computer configuration
MCU-SMHMI-UG
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User guide
Rev. 0 — 29 September 2022
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