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Journal articles on the topic 'Freescale'

Author: Grafiati

Published: 4 June 2021

Last updated: 14 February 2022

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1

Wang, Zhong Xiao, and Jing Sun. "Application Research of Stadiums Smart Lighting System Based on ZigBee." Applied Mechanics and Materials 182-183 (June 2012): 1281–86. http://dx.doi.org/10.4028/www.scientific.net/amm.182-183.1281.

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This lighting system is a versatile remote control for stadiums smart lighting application. This paper describes the design of a high-brightness LED system, which demonstrates wireless communication using Freescale’s MC13213 device, high-brightness LED dimming control using Freescale’s MM908E625 and the 3-axis acceleration sensor MMA7260QT from Freescale. Advantages of using LED lighting are a long operating life, no fragile glass, no mercury, and low-voltage DC operation. In the system, each wireless part communicates over the RF medium using the freely available software stack SMAC from Freescale. At last , the paper analysis the dimming and itensity of the smart lighting system.

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2

Sealy, Cordelia. "Freescale changes its memory." Materials Today 9, no. 9 (September 2006): 10. http://dx.doi.org/10.1016/s1369-7021(06)71609-1.

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3

Cao, Bo Yan, Hong He, and Xiao Li Wang. "Freescale Microcontroller Minimum System and Peripheral Modules Design." Applied Mechanics and Materials 321-324 (June 2013): 397–403. http://dx.doi.org/10.4028/www.scientific.net/amm.321-324.397.

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A wide variety of current embedded microcontrollers like 8,16 and 32-bit of Freescale Micro Control Unit(MCU) performance is stable and various. Mc9s12xs128 is a kind of Freescale 16-bit microcontroller. The concept of the Freescale Microcontroller Minimum System and the principle of realization is systematically elaborated. Many peripheral module such as Serial Communication, Liquid Crystal Display(LCD), keyboard scanning and Digital Tube Display are developed after a thorough understanding of the basic theory of Minimum System. In addition to this work, a very detailed description of each module's hardware design and software programming methodology is also made to show that an embedded system can achieve a specific function.

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4

Wu, Tao. "Temperature Data Gathering System Based on A-Wire Bus." Applied Mechanics and Materials 457-458 (October 2013): 1118–21. http://dx.doi.org/10.4028/www.scientific.net/amm.457-458.1118.

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DS18B20 temperature sensor is a-wire bus sensor, which can directly output digital signal and is less influenced by external interference. Its measurement accuracy is high. Freescale microcontroller is used to develop this system, which has reliable performance. It could ensure that its regular use in the actual production and living. The program is compiled in Freescale CodeWarrior integrated development environment. Experiment result states clearly that this system can monitor and display environment temperature in real-time. It has practical value.

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5

Edwards, C. "Analysis: Freescale and ST take dual option." IEE Review 52, no. 3 (March 1, 2006): 27. http://dx.doi.org/10.1049/ir:20060311.

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6

Liu, Xin Qiang, and Tian Yi Yan. "Electronic Control Unit Design of Electronically Controlled Air Suspension (ECAS) for Vehicle Based on Freescale Microcontroller." Applied Mechanics and Materials 494-495 (February 2014): 242–45. http://dx.doi.org/10.4028/www.scientific.net/amm.494-495.242.

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With the development of automotive electronics industry, the car which has electronically controlled air suspension is gained wide application. we designed an electronic control unit of automobile electronically controlled air suspension system (ECAS) including the hardware system which include the speed signal collection and processing circuit, the solenoid valve drive circuit, the CAN communication design, height detection circuit, Freescale microcontroller etc and the control strategy while propose some the basic ideas, based on Freescale microcontroller, after introducing the composition and the principle of electronically controlled air suspension. The ECAS can improve vehicle fuel economy, ride comfort and traffic-ability.

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7

Wu, Tao, Chun Huai Hu, Rui Qin, and Zhen Qiang Chai. "Research and Design of Intelligent Greenhouse Temperature Control System for Energy Saving." Advanced Materials Research 648 (January 2013): 297–300. http://dx.doi.org/10.4028/www.scientific.net/amr.648.297.

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Temperature is related to various industries. A digital temperature control system is designed in this paper. This system hardware is composed of Freescale micro control unit, DS18B20 temperature sensor, 12864 liquid crystal display, alarm and drive circuit. The program is compiled in Freescale CodeWarrior integrated development environment. Experiment result states clearly that this system can monitor and display environment temperature in real-time and has alarm function. If the temperature is higher or lower than set value, the drive module starts to cool or warm. Some measures to save energy are adopted in this design. It has practical value.

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8

Song, Man, Yang Zhang, Xiang Long Wu, and Xi Ding. "Calibration Principle and Implementation Method Based on MMA7455L." Applied Mechanics and Materials 130-134 (October 2011): 4220–23. http://dx.doi.org/10.4028/www.scientific.net/amm.130-134.4220.

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9

Zhang, Jing, and Zhang Long Nie. "The Key Technology of Designing the Universal Programmer for Freescale HCS12 Serial MCUs." Advanced Materials Research 981 (July 2014): 25–30. http://dx.doi.org/10.4028/www.scientific.net/amr.981.25.

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For implementing on-line programming of Freescale HCS12 series MCU, designing a common downloading programmer which functions include chip selection, erase and write operations. Designing a database where Freescale HCS12 MCU Flash difference parameter values placed, so achieving HCS12 MCU family online programming versatility. Erase and write machine codes are provided in the RAM area of Flash memory, these codes will be run at high voltage, these codes are relocated from Flash to RAM area for improving flash operation stability during the high voltage. According to BDM communication theory, we have developed a separate BDM serial communication program, the target device only receives the user code from the programmer, programmer does not need send opcode and the address information, not waiting for a command, so, increasing the erase and write speed. the programmer has the versatility and easily using.

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10

Jia, Chao, Xu Fang Bo, Wen Qian An, and Xiao Fang Chen. "Design and Study of Sensor Layout of Magnetic Navigation Smart Car." Advanced Materials Research 945-949 (June 2014): 1916–19. http://dx.doi.org/10.4028/www.scientific.net/amr.945-949.1916.

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This article introduces tracking principle of the "Freescale" intelligent vehicle electromagnetic group which is using inductance coil as sensor and the principle of electromagnetism, it analyzes the different number and the layout of inductance coils which affect the tracking of smart car and corresponding solution.

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11

Jia, Chao, Wen Qian An, Xu Fang Bo, and Xiao Fang Chen. "Methods of Path Identification and Processing in Freescale Intelligence Car." Applied Mechanics and Materials 631-632 (September 2014): 606–9. http://dx.doi.org/10.4028/www.scientific.net/amm.631-632.606.

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It is based on the Eighth National College "Freescale" intelligent vehicle competition, this contest requirements to make a model car which can identify the road on the model vehicle platforms independently. If the model car completes contest in accordance with the line for the shortest time that it is winning. Therefore, researching various types of track and the path tracking approach of each group model car is particularly important. First it describes the various types of track, and then describes track recognition principle of each group by using corresponding sensors in detail, finally it analysis how to use sensor to deal with all kinds of circuit method, so that the model car can be quickly and securely through a variety of track, and in the shortest time to reach the end.

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12

Horváth, Dušan, and Peter Cuninka. "Addressing the Movement of a Freescale Robotic Car Using Neural Network." Research Papers Faculty of Materials Science and Technology Slovak University of Technology 24, no. 39 (December 1, 2016): 23–31. http://dx.doi.org/10.1515/rput-2016-0013.

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Abstract This article deals with the management of a Freescale small robotic car along the predefined guide line. Controlling of the direction of movement of the robot is performed by neural networks, and scales (memory) of neurons are calculated by Hebbian learning from the truth tables as learning with a teacher. Reflexive infrared sensors serves as inputs. The results are experiments, which are used to compare two methods of mobile robot control - tracking lines.

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13

Yan, Li Ming, and Zhong Hua Wang. "The Design of Wireless Sensor Network System Based on ZigBee Technology." Advanced Materials Research 433-440 (January 2012): 4630–34. http://dx.doi.org/10.4028/www.scientific.net/amr.433-440.4630.

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Based on ZigBee theory, the MC13213 module produced by Freescale company are adopted , and the star-network is established upon MAC 802.15.4 protocol stack. The paper advances the hardware design of the network node, and introduces in detail the thought of establishing network. A simply temperature sensor network is established through experiment, which proves the reliability and stability of the system.

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Gao, Wen Hua, J. Ma, and L. Kang. "Design of Personal Positioning for Coal Mine Based on Mesh." Advanced Materials Research 44-46 (June 2008): 443–48. http://dx.doi.org/10.4028/www.scientific.net/amr.44-46.443.

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This paper puts forward a method for a location system for colliery worker based on wireless mesh network combined with zigbee technology which supports IEEE 802.15.4 wireless communication standard, with low power dissipation. Data receipt and transmission by wireless communication is realized by RF chip MC13192 produced by Freescale company. Data procession and analysis is achieved by S3C2410A chip manufactured by Sumsung which belongs to ARM9 16/32 RISC processor.

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15

Wu, Tao, Chun Huai Hu, Rui Qin, and Zhen Qiang Chai. "Design and Realization of Greenhouse Data Gathering System Based on Freescale MCU." Advanced Materials Research 616-618 (December 2012): 2083–86. http://dx.doi.org/10.4028/www.scientific.net/amr.616-618.2083.

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To measure whether the environment parameters reach the optimum condition to plant growth, an effective design scheme of measuring and gathering temperature and humidity is proposed. Freescale MCU MC9S12XET256 is used as the control core. The temperature sensor DS18B20 and humidity sensor HS1101 are used as well. The measure results are sent to MCU and displayed on LCD. The program is compiled by CodeWarrior integral development environment. Experiment result states clearly that this system can monitor environment temperature, humidity very well and has alarm function. It has practical value.

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16

Jiang, Xu, and Tao Wu. "Design and Research of Freescale Smart Car Keyboard in Mechanical Manufacturing Engineering." Advanced Materials Research 910 (March 2014): 348–51. http://dx.doi.org/10.4028/www.scientific.net/amr.910.348.

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The keyboard is made up of a number of key switch matrix. It is the simplest digital input device of MCU (micro control unit). The operator inputs data or commands through the keyboard and realizes the communication between people and machine. In the process of Freescale intelligent car competition, many operations are completed by keyboard such as speed adjustment, mode switch, reference frame changing and so on. In order to improve the adaptive ability of intelligent car, the keyboard plays an important role. So the design of the keyboard also becomes a very critical process in smart car design.

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17

Khong, Benjamin, Marc Legros, Philippe Dupuy, Colette Levade, and Guy Vanderschaeve. "On the Failure of Intelligent Power Devices Induced by Extreme Electro-Thermal Fatigue. A Microstructural Analysis." Solid State Phenomena 131-133 (October 2007): 523–28. http://dx.doi.org/10.4028/www.scientific.net/ssp.131-133.523.

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Microstructural analysis of power devices were carried out on components from Freescale Semiconductor that underwent extreme electro-thermal fatigue. Several destructive and non destructive techniques were used. It is shown that the main cause of devices failure is delamination between the heat sink and the power die. Additional causes of failure are identified. The fatigue-induced modifications of the structure of the metallization layer (grain growth, grain boundary grooving) is also discussed.

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18

Xu, Bai Quan. "Design of an Intelligent Home System Based on Linux and Qt." Applied Mechanics and Materials 536-537 (April 2014): 554–57. http://dx.doi.org/10.4028/www.scientific.net/amm.536-537.554.

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According to the characteristics and the application background of the intelligent home, designs the multi function control system of a family. The system uses Freescale i.MX51 processor Carle company ARM Cortex series A8 as MCU, the embedded Linux as the software development platform, and design a friendly user interface based Qt technology, realizes the ARM plate of each function module and server interaction. System with digital video intercom, messaging, appliance control, security alarm, home entertainment and other functions.

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He, Hong, Pei Pei Yang, Zhi Hong Zhang, and Xing Su. "Design and Implementation Intelligent Car Wiper Based on LIN Bus." Advanced Materials Research 503-504 (April 2012): 1194–97. http://dx.doi.org/10.4028/www.scientific.net/amr.503-504.1194.

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Contrary to the problem that the process of rainy car manual manipulation causes much interference to the driver, a design method for intelligent car wiper based on the LIN bus is proposed. It adopts the chips MC9S08DZ60 and MC33661 as the controller from Freescale that dedicated to the automotive electronics field. During its working, with the rain sensor sensing the magnitude of outside rainfall, it can automatically adjust the wiper speed, achieving the intelligent wiper control.

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20

Zhao, Hong Yi. "Research and Development of Intelligent Tracing Robot Based on HCS12 SCM." Advanced Materials Research 462 (February 2012): 277–80. http://dx.doi.org/10.4028/www.scientific.net/amr.462.277.

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Research and develop an intelligent tracing robot system based on HCS12 SCM. The system uses Freescale HCS12 series 16-bit SCM MC9SXS128 as its central control unit and apply a CCD camera to obtain road image information. After analyzing and calculating obtained road image, the system controls servo steering and adopts PID control strategy to control the speed of DC motor. The result proves this method can make intelligent tracing robot system move forward quickly and smoothly following the black line.

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21

Liu, Yong Tao, Jia Liu, Li Zhang, and Tian Qi Wang. "Design of Controller for Ignition Temperature Flameless Catalytic Burners." Applied Mechanics and Materials 734 (February 2015): 307–11. http://dx.doi.org/10.4028/www.scientific.net/amm.734.307.

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According to the requirements of the high temperature flameless catalytic combustion burner ignition and intelligent control, the author designed intelligent electronic igniter with microprocessor controlled. Intelligent electronic igniter is controlled by Freescale MC9S08GB60A microcontroller chip and the thermocouple is used as a temperature sensor. It also combined with high-voltage ignition circuit and the solenoid valve control circuit to achieve real-time temperature monitoring of high temperature flameless catalytic burner control ignition, flame cut off valve and other intelligent control.

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22

Murvay, Pal-Stefan, and Bogdan Groza. "Performance Evaluation of SHA-2 Standard vs. SHA-3 Finalists on Two Freescale Platforms." International Journal of Secure Software Engineering 4, no. 4 (October 2013): 1–24. http://dx.doi.org/10.4018/ijsse.2013100101.

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Embedded devices are ubiquitously involved in a large variety of security applications which heavily rely on the computation of hash functions. Roughly, two alternatives for speeding up computations co-exist in these resource constrained devices: parallel processing and hardware acceleration. Needles to say, multi-core devices are clearly the next step in embedded systems due to clear technological limitations on single processor frequency. Hardware accelerators are long known to be a cheaper approach for costly cryptographic functions. The authors analysis is focused on the five SHA-3 finalists which are also contrasted to the previous SHA-2 standard and to the widespread MD5. On the hardware side, the authors deploy their implementations on two platforms from Freescale: a S12X core equipped with an XGATE coprocessor and a Kinetis K60 core equipped with a crypto co-processor. These platforms differ significantly in terms of computational power, the first is based on a 16-bit Freescale proprietary architecture while the former relies on a more recent 32-bit Cortex core. The authors’ experimental results show mixed performances between the old standard and the new candidates. Some of the new candidates clearly outperform the old standard in terms of both computational speed and memory requirements while others do not. Bottom line, on the 16 bit platform BLAKE and Grøstl are the top performers while on the 32-bit platform Keccak, Blake and Skein give the best results.

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23

Luo, Feng, Hui Yan Feng, and Chu Liu. "Automotive CAN Bus Diagnostic Device Development." Applied Mechanics and Materials 457-458 (October 2013): 1303–9. http://dx.doi.org/10.4028/www.scientific.net/amm.457-458.1303.

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This paper presents a universal CAN Bus diagnostic device that is developed based on the Freescale 32-bit microcontroller MCF51JM128, which complies with OBD-II standard. Specific OBD-II diagnostic services can be performed through the USB request commands from PC software, which is built by Embarcadero Delphi XE; the diagnostic data are collected by the diagnostic device hardware and transferred to the PC for diagnostic result display. Besides, wireless and remote OBD diagnostics can be achieved through the serial interface connection with other communication devices.

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24

Li, Jie Hui, Le Sheng Ding, Guo Wei Shi, Da Wei Liu, and Guang Yao Zhong. "Design and Research of Ignition System for Small Gasoline Engine Electronic Control." Applied Mechanics and Materials 602-605 (August 2014): 1039–42. http://dx.doi.org/10.4028/www.scientific.net/amm.602-605.1039.

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In order to promote development and propose effective method for small electronically controlled engine system, a electronically controlled ignition system was designed in this paper. Freescale MC9S12XEP100 is chosen as MCU, control strategy was defined with MC33812 to pre-drive ignition. At last, 168F engine is adopted as original machine, optimum ignition advance angle was calibrated, related correction paraments and formulas were defined. Bench experiments results shows that power performance, fuel consumption and emission performance are promoted and improved significantly after the designed ignition system was adopted.

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Chang, Jing Xin, Wen Song Wu, and Feng Luo. "Design of Anti-Pinch Window Lift Control Module." Applied Mechanics and Materials 446-447 (November 2013): 1234–38. http://dx.doi.org/10.4028/www.scientific.net/amm.446-447.1234.

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This paper puts forward a control scheme based on LIN bus for automotive anti-pinch power window. The article first gives an overview of the structure and function of the system, and then describes the design of the hardware and software in detail. We choose a 16-bit Freescale chip MC9S12VR64 which has a mixed signal processing performance as the microcontroller. The anti-pinch algorithm is mainly based on the Hall signal, and the network communications use LIN bus. Finally, through trial and error to amend the anti-pinch algorithm, we get a satisfactory result.

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26

Han, Yi Lun, Zong Bing Zhang, and Xue Lei Wen. "Visual Intelligent Vehicle Control System’s Design Based on PC9S12XS128 MCU." Advanced Materials Research 562-564 (August 2012): 1571–74. http://dx.doi.org/10.4028/www.scientific.net/amr.562-564.1571.

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In this paper, PC9S12XS128 MCU produced by Freescale Semiconductor Co., Ltd is used as the core control unit to designed a intelligent vehicle, which can be free to follow the line of travel. The main control system including motor drive module, server drive module, the path identification module, power module, etc..Through compare a variety of hardware control program, use the best program to take control of car model’s speed and direction. Experimental results show that the intelligent vehicle designed can antomatic driving on the path of human plan accuracy.

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Gu, Jing Jing, Xue Dong Lin, De Gang Li, Miao Miao Zhang, and Cheng Cheng Peng. "Development and Performance Evaluation of EGR System on Light Duty Vehicle." Advanced Materials Research 860-863 (December 2013): 1710–14. http://dx.doi.org/10.4028/www.scientific.net/amr.860-863.1710.

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According to performance characteristics and functional requirements of EGR system, a set of EGR system was designed for supercharged diesel engine on light duty. This system employed continuous current dynamo EGR valve, and hardware circuit of control unit was designed and control software was authored implementing on Freescale MC9S12XS128. The universal characteristics of EGR ratio was tested after this system calibration and matching. Compared to traditional system, new EGR system has better actual control accuracy, improves the motorcycle economical efficiency under common duty and decreases NOx emission simultaneously.

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Chen, Xu, Xiao Feng Yin, Qi Chang Yang, and Han Lu. "Development of an Automotive Electric Window Control System Based on CAN Bus." Applied Mechanics and Materials 602-605 (August 2014): 1240–43. http://dx.doi.org/10.4028/www.scientific.net/amm.602-605.1240.

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An electric window control system based on low-speed CAN bus has been developed to reduce the wiring harness of vehicle control system, improve the system reliability and cut overall costs. On the basis of requirement analysis of the control system, a CAN application layer communication protocol has been defined. The electric window control system has been designed using Freescale 16-bit single chip microprocessor MCS12DP256 as central processing unit, and the control software has also been developed, in which an integral algorithm was used to realize the anti-pinch function.

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Wang, Li Jun, Yong Liang Huang, and Li Li Ma. "The Design and Research of Automatic Tracing Intelligent Vehicle Control System." Applied Mechanics and Materials 52-54 (March 2011): 1603–8. http://dx.doi.org/10.4028/www.scientific.net/amm.52-54.1603.

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A kind of design scheme of intelligent vehicle control system based on infrared photoelectric sensor is introduced in this paper.The Freescale 16-bit single chip MC9S12DG128B is used as controller, 13 infrared photoelectric sensors are used for acquiring path information and the PID controll is used for steering control in the system. All these ensure the intelligent vehicle’s independent tracing. To improve the system stability and response speed, a suppressing interference method based on software and a simple and effective filter interference scheme based on hardware are put forward.

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Zong, Kai, Yu Rong Chen, and Feng Wang. "The Smart Transporting Water Design of Moblile Robot Based on KINETIS K10." Applied Mechanics and Materials 380-384 (August 2013): 743–46. http://dx.doi.org/10.4028/www.scientific.net/amm.380-384.743.

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The system is the transporting water mobile robot based on Kinetis K10. In this paper, the hardware circuit and system software are designed reasonably to achieve the robot transport water from origin to destination. The mobile robot can transport water along the black guide lines (any shape) forward and backward. A Kinetis K10 MCU is adopted as the main controller, which is developed by Freescale Semiconductor Company. The line walking, LCD display, water level detection, water storage, water transporting and water pumping are designed detailedly in the smart carring water system.

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Leng, Chong Jie, Hui Yu Xiang, Xiao Zhuang Zhou, and Jia Jun Huang. "Mechanical Structural Optimization and Research for an Intelligent Vehicle Model." Applied Mechanics and Materials 302 (February 2013): 486–89. http://dx.doi.org/10.4028/www.scientific.net/amm.302.486.

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This paper utilized an intelligent vehicle model for the “Freescale” Cup National College Students' Intelligent Vehicle competition as the main study object. Under the prerequisite of adopting the same control procedures and algorithms, the mechanical structures and its parameters of the model vehicle which influence the running performance, such as front wheel alignment, steering mechanism and rear wheel deceleration mechanism are optimally designed and adjusted .It has been proved that the scheme induced the model vehicle driving fast and stable on the path-complex track and thus to achieve reasonable effects.

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32

Summerville, Douglas H. "Embedded Systems Interfacing for Engineers using the Freescale HCS08 Microcontroller I: Assembly Language Programming." Synthesis Lectures on Digital Circuits and Systems 4, no. 1 (January 2009): 1–151. http://dx.doi.org/10.2200/s00188ed1v01y200906dcs020.

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James, Roger. "Out of the box – Freescale: How free models scale in the world of information." Business Information Review 29, no. 2 (June 2012): 95–98. http://dx.doi.org/10.1177/0266382112450238.

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Guo, Yu Xi, Guo Hong Li, Shuai Li, and Ming Li. "Based on MCF52234 CAN/Ethernet Gateway Design and Research." Applied Mechanics and Materials 391 (September 2013): 328–31. http://dx.doi.org/10.4028/www.scientific.net/amm.391.328.

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With the development of network information technology, industrial control system takes higher and higher requirement to automation. In order to achieve the seamless connection between the bottom field device and external, the MCF52234 CAN/Ethernet gateway design scheme based on MCF52234 is proposed in this paper. The freescale MCF52234 chip is chosen as the microprocessor. This paper expounds the CAN/Ethernet gateway hardware design, and presents the gateway protocol conversion software design, achieves the communication between CAN bus and Ethernet. Test results show that the embedded CAN/Ethernet gateway fulfills the anticipated requirements, has high transmission rate, good real-time performance.

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Wang, Yi, and Liren He. "The Application of Microcontroller MC9S08DZ60 in Automotive CAN Bus Electronic Control Unit." Open Electrical & Electronic Engineering Journal 7, no. 1 (December 13, 2013): 110–15. http://dx.doi.org/10.2174/1874129001307010110.

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Being an excellent field-bus, CAN bus has increasingly been used in automotive electronic systems. MC9S08DZ60, an MCU of the S08D Series of Freescale company is an 8-bit universal automotive electronics controller with a CAN module. In this paper, the design of automotive electronic control unit is introduced based on the MC9S08DZ60. The hardware structure and software design processes have been shown. This circuit has characteristics of simple, low cost, high reliability and real-time. It has provided a scientific basis for the development of the CAN communication electronic control unit based on a microprocessor.

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Wang, Li Huo, Wei Yao, Ke Wei Hu, and Wei Zhang. "Fuzzy Neural Network Applied in Sensorless BLDC Motor Control Based on MC56F8013." Applied Mechanics and Materials 63-64 (June 2011): 841–45. http://dx.doi.org/10.4028/www.scientific.net/amm.63-64.841.

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This paper describes Freescale company’s DSP device MC56F8013 implementation of a control method for sensorless BLDC motor, which is according to fuzzy neural network. The inductance of stator core varies according to the variation of rotor position, and the rotor position can be estimated with the variation of current response caused by six direction voltage vectors. Then use fuzzy neural network PI control method to optimize the dynamic performance, accelerate the rotor to a certain speed, and switch to EMF mode. The experiment results show that the proposed method can have fast response, strong robustness and superior performances.

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Wang, Li Huo, Wei Yao, and Wei Zhang. "A Fridge Compressor Control System Based on MC56F8013." Advanced Materials Research 383-390 (November 2011): 6019–24. http://dx.doi.org/10.4028/www.scientific.net/amr.383-390.6019.

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This paper describes Freescale company’s DSP device MC56F8013 implementation of a fridge compressor control system about BLDC motors without position sensors, which includes motor starting and back EMF running. The motor start-up detects the variation of rotor position according to inductance of stator core. Then when the rotor is accelerated to a certain speed, EMF mode is switched. The EMF mode estimates the rotor position by back EMF zero-crossing detection method. The experiment results prove that the proposed system based on MC56F8013 can work normally and efficiently, and guarantee the demand of domestic refrigerator.

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Liu, Qiang, and Tao Wu. "Design and Research of Carbon Dioxide Automatic Measuring Instrument." Advanced Materials Research 706-708 (June 2013): 704–7. http://dx.doi.org/10.4028/www.scientific.net/amr.706-708.704.

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Carbon dioxide is the very important material of plants when they are making food by means of photosynthesis. The concentration of carbon dioxide restricts photosynthesis and respiration in a dose-dependent manner. Therefore, keeping stability concentration of carbon dioxide is quite important for plant to grow rapidly. This paper mainly introduced the system composition and working principle of carbon dioxide automatic measuring instrument, the system taking Freescale MCU as control core. The instrument can collect signal, display data and reset by connecting with the PC. The experiment result states clearly this carbon dioxide automatic measuring instrument has practical value and application significance.

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Liu, Hai Tao, Tao Wu, and Nan Chen. "Research and Exploration of Carbon Dioxide Concentration Real-Time Monitoring System Based on Freescale MCU." Advanced Materials Research 706-708 (June 2013): 924–27. http://dx.doi.org/10.4028/www.scientific.net/amr.706-708.924.

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This project put forward a kind of new low-cost real-time monitoring system of carbon dioxide. First, this equipment guides the gas into the device of chemical reaction by using step motor and measures the change of the gas’s volume which is guided into the device of chemical reaction after the reaction between the CO2 and NaOH by using the data-acquisition unit. Then, it processes data with Freescale MC9S12XS128 MCU and calculates the concentration of the CO2, in the meantime sends the data to the PC system by APC220V 3.0 wireless module, then using PC system makes the real time control over the concentration of the CO2 come true. Finally, detecting concentration accurately and steadily is achieved.

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Ji, Yi Bo, Yang Zhang, and Zhi Long Liu. "Design of Follow-Up Control in Auto-Tracking Smart Car System." Applied Mechanics and Materials 321-324 (June 2013): 635–40. http://dx.doi.org/10.4028/www.scientific.net/amm.321-324.635.

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Aiming the problems caused by the narrow path recognition range of auto-tracking smart cars, this paper proposes a follow-up control based on the Freescale K10 microcontroller. A laser detection sensor was used to percept the path information. And a follow-up steering servo was used to drive the laser detection sensor to track the road path and controlled by the PID algorithm. Moreover, the system combined Ziegler-Nichols method and trial-and-error method to tune the PID parameters. Experiments show that, the smart car with the follow-up control has a wider path recognition range, an improved driving path and a higher speed.

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Li, Xiang Rong, Hai Peng Wang, and Guo Shuai Li. "Design and Research of LED Intelligent Lighting System." Applied Mechanics and Materials 610 (August 2014): 519–22. http://dx.doi.org/10.4028/www.scientific.net/amm.610.519.

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In order to intelligentize the LED lighting systems,this system adopts the Freescale series MC9S08AC16 as the controller, senses the light environment induced by the photoresistor and uses the SS-101 pyroelectric infrared sensors to sense the presence of people. In addition, it uses LM3404 chip to drive LED headlamp unit and by changing the duty cycle of PWM to achieve the switches and automatic adjustment of brightness of LED lights. Experiments show that the light source brightness provided by this system is stable and reliable and the combination of infrared sensing technology and PWM technology achieves the intelligence of LED lights. Moreover, it has high application value.

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Xu, Xing, Zhong Xin Li, Shao Jun Qin, and Chao Feng Pan. "Ride Height Control of Trucks with Electrically Controlled Air Suspension Based on PID/PWM Algorithm." Applied Mechanics and Materials 39 (November 2010): 498–503. http://dx.doi.org/10.4028/www.scientific.net/amm.39.498.

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The truck with Electrically Controlled Air Suspension(ECAS) could reduce the loss of goods by setting running height when transporting, and to enhance the loading &unloading efficiency, a height modulating model was built by combining the theories of thermodynamics of variable-mass charging-discharging system and the vehicle kinetics. To solve such problems as “over-charging”, “over-discharging” and surging, a height control strategy of variable integral PID/PWM was proposed and its controller was developed base on the Freescale single chip. Finally the semi-physical rig was built for simulating the truck with the height controller, and the testing results show that the designed control system satisfies the requirement of height modulation.

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Summerville, Douglas H. "Embedded Systems Interfacing for Engineers using the Freescale HCS08 Microcontroller II: Digital and Analog Hardware Interfacing." Synthesis Lectures on Digital Circuits and Systems 4, no. 1 (January 2009): 1–139. http://dx.doi.org/10.2200/s00199ed1v01y200906dcs022.

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Li, Ye, and Shu Kun Cao. "The Application of DSP for Controlling Stepper Motor." Advanced Materials Research 823 (October 2013): 58–61. http://dx.doi.org/10.4028/www.scientific.net/amr.823.58.

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Abstract. DSP has been one of the most fashionable embedded technology after SCM and the core engine of the digital information age. With the constantly effort and innovation of the Texas instrument(TI) ,Freescale and other companies, performance and function of DSP has been more and more stable and powerful. Digital Signal Processing (DSP) which is a rapidly developing neotype branch has provided a perfect solution for controlling all kinds of motor. The TMS320F28335 from TI has been used as the core of the control. The connecting of the system of the motor and DSP,wave mode for operating,the program for controlling are elaborated .Moreover the different between DSP and other method for control and the caution notes has been analyzed.

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Xi, Wang, Yu Shi, Shao Lin Yang, and Jun Li. "Doherty Power Amplifier with Dynamic Power Dividing Network for Enhanced Efficiency." Applied Mechanics and Materials 721 (December 2014): 560–63. http://dx.doi.org/10.4028/www.scientific.net/amm.721.560.

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In this paper, we present a high efficiency Doherty power amplifier (PA) employing dynamic power dividing network which automatically adjusts the input power division ratio in accordance with the level of input power to enhance efficiency. Doherty PA circuit parameters of each amplifier are determined by basic performance analysis according to the datasheet. Simulated circuits through Advanced Design System (ADS) exhibit an improvement of 4% at a 6 dB backoff point from its saturated output power (PSAT) than that of a conventional Doherty PA. Implemented Doherty PA using two Freescale MRF6S27015N laterally diffused metal oxide semiconductor (LDMOS) field-effect transistors (FETs) achieves excellent drain efficiency of 46.5% at a 6 dB backoff point from PSAT, which is 2% higher than conventional Doherty PA.

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Yang, Ning, Hai Ting Zhu, and Shao Shan Zhong. "The Method of Conductor Resistance Autocompensation in New Two-Wire Thermistor Temperature Measurement." Advanced Materials Research 718-720 (July 2013): 450–54. http://dx.doi.org/10.4028/www.scientific.net/amr.718-720.450.

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Thermistor has a large temperature range, good stability and resistance to oxidation, which occupies an important position in the low-temperature measurement. This article describes new two-wire thermistor temperature measurement device using the Freescale MC9S12XS128 MCU with sampling capacitance. The device is composed of the MCU with its own A/D, MC9S12XS128 MCU, sampling capacitance, amplifier, boosted circuit, data acquisition and processing system, constant current source, etc. Using constant current source and 16-bit A/D converter designs the temperature measurement circuit, it can eliminate the effect from the conductor resistances in the traditional two-wire resistance temperature measurement system and reduce the measurement error which conductor resistances bring. The method is simple, practical, with high accuracy, strong anti-interference ability and other characteristics.

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Besher, Kedir Mamo, Juan Ivan Nieto-Hipolito, Raymundo Buenrostro-Mariscal, and Mohammed Zamshed Ali. "Spectrum Based Power Management for Congested IoT Networks." Sensors 21, no. 8 (April 10, 2021): 2681. http://dx.doi.org/10.3390/s21082681.

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With constantly increasing demand in connected society Internet of Things (IoT) network is frequently becoming congested. IoT sensor devices lose more power while transmitting data through congested IoT networks. Currently, in most scenarios, the distributed IoT devices in use have no effective spectrum based power management, and have no guarantee of a long term battery life while transmitting data through congested IoT networks. This puts user information at risk, which could lead to loss of important information in communication. In this paper, we studied the extra power consumed due to retransmission of IoT data packet and bad communication channel management in a congested IoT network. We propose a spectrum based power management solution that scans channel conditions when needed and utilizes the lowest congested channel for IoT packet routing. It also effectively measured power consumed in idle, connected, paging and synchronization status of a standard IoT device in a congested IoT network. In our proposed solution, a Freescale Freedom Development Board (FREDEVPLA) is used for managing channel related parameters. While supervising the congestion level and coordinating channel allocation at the FREDEVPLA level, our system configures MAC and Physical layer of IoT devices such that it provides the outstanding power utilization based on the operating network in connected mode compared to the basic IoT standard. A model has been set up and tested using freescale launchpads. Test data show that battery life of IoT devices using proposed spectrum based power management increases by at least 30% more than non-spectrum based power management methods embedded within IoT devices itself. Finally, we compared our results with the basic IoT standard, IEEE802.15.4. Furthermore, the proposed system saves lot of memory for IoT devices, improves overall IoT network performance, and above all, decrease the risk of losing data packets in communication. The detail analysis in this paper also opens up multiple avenues for further research in future use of channel scanning by FREDEVPLA board.

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Wang, Liang Cheng, Zhi Yong Liang, and Xue Yong Ding. "Design and Implementation of the Two Wheel Self-Balancing Car Based on Single Chip Microcomputer of Freescale." Applied Mechanics and Materials 341-342 (July 2013): 1028–32. http://dx.doi.org/10.4028/www.scientific.net/amm.341-342.1028.

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The self-balanced two-wheel Cars are often devised in various competitions, and are involved in this direction in many large games. Based on the Freescal Semiconductor XS128 series single-chip microcomputer as the core controller, with the gyroscope and angle sensor to achieve two-wheel Car self-balance, the self-balanced two-wheel structure, the balance principle and the control algorithm are introduced emphatically, and the self-balanced two-wheel car is finally completed through repeated testing.

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Vincent, Michael, Doug Mitchell, Jason Wright, Yap Weng Foong, Alan Magnus, Zhiwei (Tony) Gong, Scott Hayes, and Navjot Chhabra. "3D RCP Package Stacking: Side Connect, An Emerging Technology for System Integration and Volumetric Efficiency." International Symposium on Microelectronics 2013, no. 1 (January 1, 2013): 000447–51. http://dx.doi.org/10.4071/isom-2013-wa14.

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Fan-out wafer level packaging (FO-WLP) has shifted from standard single die, single sided package to more advanced packages for System-in-Package (SiP) and 3D applications. Freescale's FO-WLP, Redistributed Chip Package (RCP), has enabled Freescale to create novel SiP solutions not possible in more traditional packaging technologies or Systems-on-Chip (SoC). Simple SiP's using two dimensional (2D), multi-die RCP solutions have resulted in significant package size reduction and improved system performance through shortened traces when compared to discretely packaged die or substrate based multi-chip module (MCM). More complex 3D SiP solutions allow for even greater volumetric efficiency of the packaging space. 3D RCP is a flexible approach to 3D packaging with complexity ranging from Package-on-Package (PoP) type solutions to systems including ten or more multi-sourced die with associated peripheral components. Perhaps the most significant SiP capability of the RCP technology is the opportunity for heterogeneous integration. The combination of various system elements including, but not limited to SMD's, CMOS, GaAs, MEMS, imaging sensors or IPD's gives system designers the capability to generate novel systems and solutions which can then enable new products for customers. To enable this ever increasing system integration and volumetric efficiency, novel technologies have been developed to utilize the full package space. Technologies such as through package via (TPV) and double sided redistribution are currently proving successful. For this discussion, an emerging technology for 3D RCP package stacking that can further enhance design flexibility and system performance is presented. This technology, package side connect, utilizes the vertical sides of packages and stacked packages to capture a normally unused piece of package real-estate. Mechanical and electrical characterization of successful side connects will be presented as well as reliability results of test vehicle packages using RCP packaging technology.

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Wang, Ye Qin. "Design of the Intelligent Vehicle System Based on CCD Camera." Applied Mechanics and Materials 274 (January 2013): 278–81. http://dx.doi.org/10.4028/www.scientific.net/amm.274.278.

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In the context of the session of the freescale Intelligence Car Competition, this paper designed the intelligent vehicle system based on MC9S12XS128 microcontroller and its mechanical system considering the driving-stability and comfort of car module. In the system, CCD camera gathers real-time track road conditions information, and then the microcontroller will identify road situation and realize tracking control with these information. Using time-optimal to control the DC motor speed and the positional PID to control the steering gear, adjust PID parameters dynamically based on the position of the black line. These measures guarantee the intelligent vehicle travel along a specified route safely、smoothly and fast, and then realize automatic tracing. The results show that the system meets the need of path recognition and anti-interfere well.

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