Real Time Control Embedded Software Motor Control and Power Conversion Libraries

RTCESL

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This NXP real-time control embedded software libraries – RTCESL (former Freescale embedded software libraries – FSLESL) is a group of algorithms ranging from basic mathematics operations to advanced transformations and observers, which can be easily incorporated into complex real-time control applications, and used in our motor control reference designs. The algorithms help to speed development and ease of use in applications that require intensive math computation and control, such as advanced high-efficiency motor control and power conversion.

The libraries are highly optimized, tested on our hardware and are easy to use as they are implemented with a C-callable function interface. If the device has a hardware accelerator for specific calculations like Memory-Mapped Divide and Square Root Module (MMDVSQ) in some Cortex® M0+ core based devices or PowerQuad (PQ) hardware accelerator in some Cortex® M33 core-based devices the RTCESL can process some algorithms using such hardware accelerators to provide quicker calculations. The functions have been tested against NXP's reference models in MATLAB.

The up to date version of the libraries is available on NXP GitHub.

Diagram

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Embedded Software and Motor Control Libraries Block Diagram

Embedded Software and Motor Control Libraries Block Diagram

RTCESL-BD

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Features

  • Math Library (MLIB): Simple math functions (addition, subtraction, multiplication, division, shifts...) with and without saturation. This aim of this block is to have efficient and fast mathematics built on the MCU’s instructions.
  • General Function Library (GFLIB): Contains the basic building blocks of a real-time control application. Functions for basic mathematical calculations, trigonometric functions, simple look-up table and control functions such as PI and PID controllers.
  • General Motor Control Library (GMCLIB): The fundamental blocks of a motor control application. The libraries include vector modulation, Park and Clarke transformations and specific motor-related functions to build digitally controlled motor drives.
  • General Digital Filter Library (GDFLIB): Includes filter functions for signal conditioning.
  • Advanced Motor Control Library (AMCLIB): Functions that enable the construction of a variable speed, AC motor drive system that implements field oriented control techniques without position or speed sensors to provide the lowest cost solution.
  • Power Conversion Library (PCLIB): Contains control loop algorithms required in power conversion applications such as PI, PID and PID with low pass filter controller, 2P-2Z and 3P-3Z controller algorithms.
  • Supported Cores:
    • Arm® Cortex®-M0+
    • Arm® Cortex®-M4
    • Arm® Cortex®-M7
    • Arm® Cortex®-M33
    • DSP56800E
    • DSP56800EX
    • DSP56800EF
  • Many basic math, filter and motor control related functions
  • Written in assembler
  • Optimized for speed and size
  • Supplied as binary files
  • Easy to link to the project

Supported Devices

  • KV1x: Kinetis® KV1x-75 MHz,  Entry-Level 3ph FOC / Sensorless Motor Control MCUs based on Arm® Cortex®-M0+
  • KV3x: Kinetis® KV3x-100–120 MHz,  Advanced 3ph FOC / Sensorless Motor Control MCUs based on Arm® Cortex®-M4
  • KV4x: Kinetis KV4x-168 MHz, High Performance Motor / Power Conversion MCUs based on Arm® Cortex®-M4
  • KV5x: Kinetis® KV5x-240 MHz, Motor Control and Power Conversion, Ethernet, MCUs based on Arm® Cortex®-M7
  • MC56F82xxx: MC56F826xx and MC56F827xx Digital Signal Controllers
  • MC56F83xxx: Performance Level Digital Signal Controllers, USB FS OTG, CAN FD
  • S12ZVMB: Mixed-Signal MCU for Automotive and Industrial Motor Control Applications
  • LPC80X: LPC800: 32-Bit Arm® Cortex®-M0+-Based Low-Cost MCU
  • LPC55S6x: High Efficiency Arm® Cortex®-M33-Based Microcontroller Family
  • i.MX-RT1020: i.MX RT1020: Crossover MCU with Arm® Cortex®-M7
  • i.MX-RT1050: i.MX RT1050 Crossover MCU with Arm® Cortex®-M7 Core
  • i.MX-RT1060: i.MX RT1060: Crossover MCU with Arm® Cortex®-M7
  • i.MX-RT1170: i.MX RT1170: 1 GHz Crossover MCU with Arm® Cortex® Cores

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