STMicroelectronics has extended the applications support for its STM32G4 microcontrollers, supplying digital-power and motor-control Discovery kits and adding new firmware examples in the latest v1.1.0 of its STM32CubeG4 software package.
The new B-G474E-DPOW1 Discovery kit is a complete digital-power platform containing the STM32G474RE MCU, a buck-boost converter with on-board resistive loads, a high-brightness RGB LED controller for lighting-power designs, user LEDs and buttons, flexible power and data connections, and debugging support.
Designers can use the kit to explore the capability of the MCU’s Filter-Math Accelerator (FMAC) to handle functions such as 3p/3z compensation and to ensure high efficiency across the load range. It can also perform digital slope compensation, freeing CPU cycles for other functions.
ST has also introduced the B-G431B-ESC1 Discovery kit, a complete reference design for Electronic Speed Control (ESC) of three-phase Brushless (BLDC) and permanent magnet synchronous motors drawing up to 40A. Containing the STM32G431CB MCU and a three-phase motor-driver stage based on ST’s STripFET F7 power MOSFETs, it can implement either sensorless Field-Oriented Control (FOC) or six-step commutation. On-board features include electrical and thermal protection, interlocking high-side/low-side drivers, and support for motor sensors and three-shunt current sensing.
The kit is supported in the X-CUBE-MCSDK v5.4.1 motor-control software development kit.
ST has also extended the STM32G4 series, adding a new 14mm x 14mm, 128-pin LQFP package. The STM32G4 MCUs offer rich analog features as well as high-resolution timers, dualbank Flash for secure live firmware upgrades, low power consumption in dynamic mode, and a 125°C maximum ambient temperature option.
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Digital power kit includes a buck-boost power converter and resistive loads
