The new communication capabilities integrate EtherCAT, Ethernet, and CAN FD for motor drive, factory automation and high power grid applications.
June 20, 2019, Beijing – Texas Instruments (TI) today introduced new communications capabilities for the C2000TM family of microcontrollers (MCUs). With the C2000 F2838x 32-bit microcontroller, designers can connect AC servo drives to other industrial systems on a single chip, including EtherCAT, Ethernet, and Controller Area Network (CAN FD) with flexible data rates.
Systems with communication interfaces typically require an external application specific integrated circuit (ASIC) or dedicated host control microprocessor, but this reduces the flexibility of the design architecture, adds complexity, and takes up space on the board. The new C2000 F2838x microcontroller does not rely on an external ASIC, which reduces the overall solution size and reduces the materials used.
The F2838x microcontroller integrates three industrial communication protocols, enabling designers to customize a microcontroller to meet the specific needs of each system. A key component required to achieve this is a new connection manager based on the Arm® Cortex®-M4 subsystem, which reduces some of the processing-intensive communications and optimizes connectivity. In addition to these features, the C2000 F2838x microcontroller offers enhanced real-time control performance and greater flexibility than previous generation C2000 series microcontrollers.
Key features and advantages of the C2000 F2838x family of microcontrollers
• Combines EtherCAT, Ethernet and CAN FD: In the electrical isolation architecture, the new microcontroller features a fast serial interface with 8 receive channels for inter-chip communication at speeds up to 200 Mbps with minimal pins. Designers can take advantage of this highly integrated feature in CAN FD designs to quickly increase the number of CAN FD ports available by pairing the F2838x with the TI System Basis Chip (SBC), such as with an integrated CAN FD controller and transceiver. TCAN4550 SBC.
• Maximize real-time control performance: Thanks to the 64-bit floating-point unit and fast-division hardware, C28x-based CPU-based control enables differential functionality and high-precision design. For servo drive applications, fast current loop technology handles field oriented control within 500 nanoseconds for more precise position control.
• Flexible integrated sensing technology for improved real-time control: The C2000 F2838x family also integrates a single-ended 16-bit analog-to-digital converter that doubles the number of available channels compared to the previous generation C2000 microcontroller, minimizing externalities Component and system delays and maximize control loop accuracy. Extended configurable logic blocks enable designers to customize peripherals and eliminate or reduce the need for field-programmable gate arrays.
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