do you remember? When I was young, my mother seemed to be able to see whatever we were doing, as if they had eyes behind their heads. In fact, in daily life, we sometimes need to look at things outside the field of vision, which is very important to us. One of the situations is when driving a car. Recently, a car advertisement described road traffic as “disorganizedâ€. This advertisement describes the various hazards and accidents encountered during normal driving, mainly to promote the latest radar-based Advanced Driver Assistance System (ADAS), which helps drivers detect these hazards and obstacles on the road in time. . One of the most interesting aspects of this ad is that the vehicle it displays is not a luxury sedan, but a standard midsize family sedan. Systems such as blind spot monitoring, intersection traffic alerts, obstacle detection and collision warning systems have been around for many years, however, they are limited in configuration and are only used in high-end vehicles.
Recently, the number of integrated 24 GHz radar systems has increased, which enables such features to be applied to more mainstream and popular vehicles. A key component of these system cores is the Digital Signal Processor (DSP). The digital processor is used to perform all of the intensive mathematical calculations required to process the data in the radar sensor. One of TI's ways to achieve this high level of integration is to use the C2000TM DelfinoTM F28377D microcontroller. The MCU provides the necessary combination of integrated analog and control peripherals, along with a real-time DSP engine phase designed for applications that require large amounts of data processing. Up to 800 MIPS of floating-point DSP performance with existing dual C28x CPUs and dual CLA real-time coprocessors. The C28x's Integrated Triangular Math Unit (TMU) and Viterbi Complex Unit (VCU) improve the performance of the C28x CPU by reducing the number of instruction cycles required to perform calculations in an ADAS application.
The C2000 MCU's highly integrated on-chip peripherals are highly optimized for real-time control tasks. Four independent analog-to-digital converters make it possible to achieve fast and accurate data acquisition. These ADCs are available in selectable 16-bit and 12-bit modes and can achieve sample rates of up to 3.5 million per second. Radar stimuli are also available through the Enhanced Pulse Width Modulation (PWM) module, which provides accurate duty cycle edge layout and provides complex shadowing, synchronization, edge positioning, and path logic. A 12-bit buffered digital-to-analog converter (DAC) can also be used to provide enhanced control.
The C2000 Real-Time Control MCU incorporates the power of DSP into the MCU architecture to better meet the needs of the automotive and transportation industries.
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