Microcontroller Design and Application for Wireless Bio-Sensor Network
Date Issued
2007
Date
2007
Author(s)
Chuang, Zhi-Cheng
DOI
en-US
Abstract
Because many developed countries include Taiwan became aging society, the life nursing of the old will be a big problem. Depending on the advancement of semiconductor process, it makes this possible to achieve low-cost, long-tern, small and reliable wireless medical sensors. By the sensors placed on human body, people’s health can be cared for at any time and any where. It can expand the living community of the old and chronic-illness patients and reduce the burden of their family’s attention.
We achieved the wireless sensing system on chip (SOC) by TSMC 2P4M 0.35um standard CMOS process. The chip includes Microcontroller, ASK transmitter, OOK receiver, Instrument Amplifier, Analog-to-Digital Converter and Voltage Regulator. Microcontroller is designed by me. The other circuits are designed by the other members of our laboratory. There are 2 types of Microcontroller. One is an ASIC microcontroller that realizes the protocol designed by us and Dr. Ming-Hui Jin. The other is a programmable one. We can control its operation by machine code and apply it to the broader application. The 2 types of Microcontroller are both integrated into SOCs.
The ASIC Microcontroller uses UART as its interface and uses Cyclic Redundancy Checks to the correctness of wireless signal in the bio-medical application. It also equips a real-time timer to count the period of action and has sleep mode to save power. It is applied at 19.2-KHz clock rate in general. The programmable Microcontroller’s data bus is 8-bit width, program bus is 14-bit width and it has 35 instructions. It equips 256 words data SRAM and 2k words SRAM. It has 8+5 general purpose IOs, 2 UARTs, a SPI module, 3 timers, a watch dot, 8 types of interrupt, and an 8-level stack. The applied rate is 4MHz in general.
Subjects
微控制器
中央處理單元
系統單晶片
無線感測網路
感測網路協定
Microcontroller
Central Processing Unit
System on a Chip
Wireless Sensor Network
Sensor Network Protocol.
SDGs
Type
thesis
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