應用於生醫訊號檢測之可程式化系統單晶片設計

Programmable System-on-a-Chip (SoC) Design for Biomedical Signal Sensing Applications

曾志豪(Chih-Hao Tseng)

指導教授 ： 鍾文耀

中原大學/工學院/電子工程研究所/碩士(2013年)

https://doi.org/10.6840/cycu201300694

摘要

近年來生醫研究逐漸朝向多參數感測的應用發展，本實驗室針對電子舌計畫已提出溫度、血糖、酸鹼度、心電訊號…等多種參數感測器系統，其中複合式檢測系統最具代表性，往後可藉由替換前端感測器，達到多參數感測系統之目的。
隨著積體電路不斷的進步，將多功能感測系統積體化實現，已成為目前生物醫學工程發展的趨勢。本實驗室在感測系統前端類比區塊已有不少積體化的晶片，但後端缺乏研究的數位部分皆使用商用元件取代，因此，無法進階到系統積體化階段。
本篇論文實現一混合訊號可程式化微控制器，以MIPS為CPU核心架構、SD卡作為可程式化程式記憶體、以及十六位元計時計數器、序列周邊介面與數位脈衝寬度調變裝置等模組，並整合十位元SAR-ADC成為混合訊號可程式化系統單晶片。本設計已透過Altera FPGA DE0開發板與SD卡實體驗證成功，並使用TSMC 0.18 um 1P6M 1.8V與 3.3V製程技術以Mixed-Signal Design Flow完成積體化，全晶片操作頻率達到25 MHz，功率耗損為19.86 mW，而面積約2.06 mm2。

關鍵字

SD卡 ； SAR-ADC ； 系統單晶片 ； 混合訊號 ； MIPS 微處理器

並列摘要

Recent years, biomedical research had been gradually developed toward multi-parameter sensing applications. In our lab, we has been proposed various parameter sensing systems for the project electronic tongue of which includes temperature, Glucose, pH, ECG … etc. The most representative system is the compound sensing system. It replaces the front sensor which can approach multi-parameter sensing system.
It is a trend to develop multi-parameter sensing system in biomedical engineering. However, we cannot reach the stage of integration because we lack research of digital microcontrollers lack of research.
This paper presents a VLSI design of Mixed-Signal Programmable System-on-a-Chip (SoC). The digital part of the system is 16-bit general microprocessor design which has included MIPS-Based CPU core, SPI, DPWM, 16 bits Timer/Counter and external SD card to replace programmable memory. The analog part of this design was integrated by 10 bit successive approximation register analog-to-digital converter (SAR-ADC). This chip has been verified with physical SD card successfully by Altera FPGA DE0 development board. And an implementation based on TSMC 0.18 um CMOS 1P6M 1.8 and 3.3V technology Mixed-Signal Design Flow has achieved. The operating frequency approach 25MHz, 19.86mW power consumption and area of this chip is 2.06 mm2.

並列關鍵字

SAR-ADC ； SD Card ； MIPS CPU ； System on Chip(SoC) ； Mixed-Signal

參考文獻

[22] 謝佳宏,”應用於可攜式感測器之系統單晶片開發平台之研究”, 私立中原大學電子工程學系碩士學位論文,1992

[23] 胡慶彰,”八位元精簡指令集微控制器於電刺激器訊號處理之設計與應用”, 私立中原大學電子工程學系碩士學位論文,1998

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