SLAU857A May   2021  – July 2021 MSP430FR2476 , MSP430FR2512 , MSP430FR2522 , MSP430FR2532 , MSP430FR2533 , MSP430FR2632 , MSP430FR2633 , MSP430FR2672 , MSP430FR2673 , MSP430FR2675 , MSP430FR2676

 

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5.1.4 Object Structure in CapTIvate Technology

There are four types of objects in CapTIvate, Top Level, Sensor, Cycle, and Element. Figure 5-6 shows the parent-child relationship between different structures, and also gives the object name, structure name, and actual naming.

GUID-20210517-CA0I-JDFS-Q5P2-FVQ31NMD4TNZ-low.pngFigure 5-6 Object Structure in CapTIvate Technology

Top Level is used to describe the working mode of MCU. It belongs to the abstract concept of MCU. It corresponds to the MCU widget in the GUI, and the parameters configured by the MCU widget hang under the Top-Level structure. This part of the content is in 5.1.1 of this chapter. Discussed in the subsection, Sensor, Cycle, and Element correspond to the sensor widgets in the GUI. The parameters configured by the sensor widgets are placed under these three structures. This part of the content is also discussed in Section 5.1.2.

Sensor corresponds to the five sensor forms of button panel, proximity sensor, scroll wheel, slider, touch panel, and proximity sensor, which belong to the abstract concept of physical sensors, so there can be multiple Sensor objects in a system.

Because one capacitance detection module of CapTIvate MCU corresponds to 4 CAP IOs, it is necessary to select the scanned IO ports sequentially by chip selection, so Cycle corresponds to each round of scanning.

Element is an abstract concept of physical buttons. All Sensor modes, button panels, proximity sensors, scroll wheels, sliders, and touch panels are essentially based on the signals measured by each button, and then processed on the software to obtain the corresponding zero-dimensional, one-dimensional, and two-dimensional information. Therefore, the button is the most basic structure in the sensor, and the Element is also the most basic object.