The Low-Power Research of Embedded Bluetooth System
|School||Xi'an University of Electronic Science and Technology|
|Course||Microelectronics and Solid State Electronics|
|Keywords||Embedded Systems Bluetooth technology OMAP5910 Low power consumption Power Management|
With the rapid development of modern science and technology , embedded system applications are becoming increasingly widespread. In embedded applications , the system's power more and more people 's attention , which is the need for battery-powered portable systems is especially important. Low-power design can greatly improve the overall performance, enhance the competitiveness of products in the market , with a significant social effects and economic benefits . OMAP is a highly integrated hardware and software application platform, which is the next generation of embedded devices for the realization of applications and design. Bluetooth technology is a short-range wireless communications technology, based on its low cost, low power consumption , small size advantages , has been widely used . This paper describes an embedded Bluetooth system is based on TI's OMAP5910 and Bluetooth technology , a variety of formats to achieve real-time video , voice and file transfer communication systems. In this paper, a low-power embedded Bluetooth system , a series of research and design. First, based on system hardware platform , the switching power supply of the basic principles and linear , analysis of the system to the processor and peripheral devices powered circuits , the hardware design , debugging, and power measurement . And from considering the power conversion efficiency and system power consumption point of view, to ensure the system is working under the premise of the system to improve the structure of supply , reducing power consumption. Second, based on the principle of dynamic power management , from the entire system level to consider how to reduce system power consumption . According processor provides a variety of operating modes , with the power management chip TPS65010, in the embedded Linux system for dynamic power management research . Finally, the design and implementation of CCS on a separate project , the result is LOW_PWR pin goes high , you can control the processor at the appropriate time to enter deep sleep mode or wake up.