NXP recently introduced the first two devices – the LPC11C12 and LPC11C14 – in the LPC11C00 series featuring a controller area network (CAN) 2.0B-compliant controller for industrial and embedded networking applications. CAN has long been considered one of the best choices for robust real-time communication, but price-prohibitive for low-cost embedded applications. With the introduction of the LPC11C00 series, NXP aims to provide a low-cost entry point for high-performance embedded designs.
Traditionally used primarily in automotive applications, the CAN bus is now one of the best choices for embedded networking applications which require communication across multiple embedded microcontrollers and CAN device nodes such as sensors and actuators. Some of today’s new market demands are embedded machine control applications such as home appliances, motor controllers and elevator systems, as well as energy and power controllers that increasingly need to communicate with each other. One recent example is a high-end coffee machine using microcontrollers interconnected via CANopen.
Incorporating CANopen drivers in on-chip ROM provides design engineers with easy-to-use API commands to the CANopen protocol, enabling rapid integration of the LPC11C00 series into CAN-based networks. These drivers provide defined CAN and CANopen APIs to simplify CAN application development. Incorporating these drivers in low-power ROM frees up to 8 KB of user code space and offers the dual advantage of reduced operating power, as well as secure and safe bootloads via CAN or other on-chip serial channels. With the security of ROM-based drivers, updating Flash via in system programming (ISP) over the CAN bus provides the whole range of functionality from programming blank parts in production through changing system parameters to full in-field re-programmability.
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