Upgrading designs, improving performance and simplifying development of digital real-time control systems, Piccolo microcontrollers from Texas Instruments are bringing high efficiency and innovations to motor control applications. The TMS320F2803x and TMS320F2806x Piccolo MCUs now contain a C-programmable, integrated control law accelerator (CLA) co-processor via a new C-compiler to enable greater levels of innovative designs.
The CLA is a 32-bit floating-point math accelerator, designed to work independently of the TMS320C28x CPU core to offload complex, high-speed control algorithms. This offloading frees the CPU to handle input/output and feedback loop metrics, resulting in up to a fivefold increase in performance for closed loop applications. The CLA also provides direct access to on-chip peripherals for parallel execution of algorithms to accelerate system response time and improve efficiency.
Accessible through the controlSUITE software platform are new CLA C-compiler software libraries and system examples available for motor control application development. The CLA provides efficient software partitioning, and TI’s optimised, free source code software libraries and system examples running on the control law accelerator (CLA) provide software code blocks, enabling developers to easily and quickly create customised designs while delivering 15% to 20% performance gains in motor control applications.
F2803x Piccolo microcontrollers incorporate TI’s enhanced pulse width modulators (ePWMs at 150 ps resolution), 12-bit analog-to-digital converter (ADC) and two 10 MHz oscillators on-chip, and can replace multiple electronic components (i.e. external power ICs) to lower overall system cost while enabling advanced power electronics management.
F2806x Piccolo MCUs incorporate a Viterbi, Complex Math and CRC Unit (VCU) in addition to the C28x core and CLA, providing 75 tailored math instructions to accelerate processing of communications algorithms. Also included on-chip are USB 2.0 and CAN for improved communications throughput and PWMs, a 16-channel, 3 MSps 12-bit ADC and three analog comparators with 10-bit reference, to eliminate external design components.
For more information contact Dirk Venter, Arrow Altech Distribution, +27 (0)11 923 9600, [email protected], www.arrow-altech.co.za
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