STMicroelectronics X-STM32MP-GNSS1

Overview

X-STM32MP-GNSS1 from STMicroelectronics is an STM32MP157F-compatible GNSS expansion board integrating the Teseo-LIV3FL multi-constellation receiver, ISM330DHCX 6-axis inertial module, ILPS22QS barometric pressure sensor, and IIS2MDC 3-axis magnetometer. It delivers fused positioning with ±2 g to ±16 g acceleration range, ±125 to ±4000 dps angular rate, 4060 hPa pressure full-scale, and ±50 gauss magnetic field sensing - deployed on STM32MP157F-DK2 and Raspberry Pi GPIO headers for high-accuracy navigation.

For engineers reviewing the X-STM32MP-GNSS1 datasheet, X-STM32MP-GNSS1 pinout, X-STM32MP-GNSS1 application, or X-STM32MP-GNSS1 equivalent, this board enables rapid evaluation of multi-sensor GNSS fusion in embedded Linux environments using OpenSTLinux X-LINUX-GNSS1 software stack, with verified I²C/UART/GPIO interface mapping and on-board LNA+SAW front-end for weak-signal acquisition.

Technical Context

The board implements sensor fusion at hardware level: Teseo-LIV3FL provides GPS/Galileo/Glonass/BeiDou/QZSS positioning via UART and PPS timing output; ISM330DHCX feeds real-time motion data over I²C with two interrupt outputs (INT1/INT2) for motion detection and FIFO status; ILPS22QS and IIS2MDC share the same I²C bus with dedicated SCL/SDA lines and DRDY/interrupt signaling for synchronized altitude and heading correction.

Power architecture supports dual-rail operation: 3.3 V supplies all sensors and logic, while VBAT and VCC_RF paths isolate GNSS RF section; on-board EEPROM (M24C32-RMN6TP) stores GPIO configuration and driver setup parameters, enabling automatic initialization without host-side firmware modification.

Key Specifications

Availability

X-STM32MP-GNSS1 is available at Aetrix Electronics and suitable for GNSS-based navigation systems, industrial asset tracking, and autonomous mobile robotics requiring stable component supply and validated Linux driver integration.

Supply support for X-STM32MP-GNSS1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, sensors, power ICs, and automotive-grade components since 1987.

X-STM32MP-GNSS1 belongs to ST's STM32MP ecosystem expansion kits, developed specifically to accelerate development of Linux-based location-aware edge devices with certified multi-sensor fusion capabilities.

FAQ

Does X-STM32MP-GNSS1 require external power beyond the host GPIO header?

No. The board draws regulated 3.3 V and 5 V power exclusively from the STM32MP157F-DK2 or Raspberry Pi 40-pin GPIO header. VBAT and RF supply rails are internally generated; no auxiliary power input is needed for standard operation or GNSS signal acquisition.

Which Linux kernel versions and drivers are supported out-of-the-box?

X-STM32MP-GNSS1 is validated with OpenSTLinux X-LINUX-GNSS1 v3.1.0 and later, including mainline Linux kernel 5.15+ drivers for Teseo-LIV3FL (st-gnss), ISM330DHCX (iio), ILPS22QS (iio), and IIS2MDC (iio). Device tree overlays are provided for automatic probe and IRQ routing.

Can the on-board EEPROM be reprogrammed for custom GPIO configurations?

Yes. The M24C32-RMN6TP EEPROM is accessible via I²C address 0x50 and supports write-enable control through jumper J1. Factory-default configuration can be overwritten using standard Linux i2c-tools or ST-provided configuration utilities included in X-LINUX-GNSS1.

Is the GNSS antenna included, and what is its gain specification?

Yes, a ceramic patch GNSS antenna is included and pre-mounted. Its peak gain is +2.5 dBi at 1.575 GHz (GPS L1), with axial ratio < 3 dB and impedance matched to 50 Ω via integrated matching network - optimized for open-sky and urban canyon reception.