當(dāng)前位置:首頁 > 單片機(jī) > 單片機(jī)
[導(dǎo)讀]TMS320C5515 DSP是醫(yī)療開發(fā)套件(Rev. B)支持完整的醫(yī)療應(yīng)用開發(fā)如心電圖(ECG),數(shù)字聽診器和脈沖血氧計等。典型應(yīng)用包括模擬前端(AFE),信號處理算法以及用戶控制與交互。TMS320C5515是低功耗定點數(shù)字信號處理

TMS320C5515 DSP是醫(yī)療開發(fā)套件(Rev. B)支持完整的醫(yī)療應(yīng)用開發(fā)如心電圖ECG),數(shù)字聽診器和脈沖血氧計等。典型應(yīng)用包括模擬前端(AFE),信號處理算法以及用戶控制與交互。TMS320C5515是低功耗定點數(shù)字信號處理器(DSP),采用TMS320C55x™ DSP處理器核,內(nèi)核工作電壓1.05V/1.3V,I/O電壓為1.8/2.5/2.75/3.3V。
16.67/13.33/10/8.33-ns 指令周期,時鐘速率60-,75-,100-,120-MHz,具有320KB 片內(nèi)RAM。


圖1。TMS320C5515方框圖

醫(yī)療開發(fā)套件(MDK

A number of emerging medical applications such as electrocardiography (ECG), digital stethoscope, and pulse oximeters require DSP processing performance at very low power. The TMS320C5515 digital signal processor (DSP) is ideally suited for such applications. The C5515 is a member of TI’s C5000™ fixed-point DSP platform. To enable the development of a broad range of medical applications on the C5515, Texas Instruments has developed an MDK based on the C5515 DSP. A typical medical application includes:

• An analog front end, including sensors to pick up signals of interest from the body

• Signal processing algorithms for signal conditioning, performing measurements and running analytics on measurements to determine the health condition

• User control and interaction, including graphical display of the signal processing results and connectivity to enable remote patient monitoring

The MDK is designed to support complete medical applications development. It includes the following elements:

• Analog front-end boards (FE boards) specific to the key target medical applications of the C5515 (ECG, digital stethoscope, pulse oximeter), highlighting the use of the TI analog components for medical applications

• C5515 DSP evaluation module (EVM) main board

• Medical applications software including example demonstrations

圖2。醫(yī)療開發(fā)套件(MDK)硬件方框圖

MDK Hardware Overview

An electrocardiogram (ECG/EKG) is the recording of the electrical activities of the heart and is used in the investigation of heart disease. The electrical waves can be measured by selectively placed electrodes (electrical contacts) on the skin.

醫(yī)療開發(fā)套件(MDK)ECG主要特性:

The key features of the MDK ECG system are:

• 12 lead ECG output using 10 electrode input

• Defibrillator protection circuitry

• Diagnostic quality ECG with bandwidth of 0.05 Hz to 150 Hz

• Heartbeat rate display

• Leads off detection

• Real-time 12 lead ECG waveform display on EVM LCD screen, one lead selectable at a time

• Zoom option for the Y-axis (amplitude) on EVM LCD screen

• Real-time 12 lead ECG waveform display on PC, three leads at a time

• Zoom function on X-axis (time) and Y-axis (amplitude) on PC application

• Freeze screen option on PC Application

• Recording of ECG data and offline view option of recorded ECG data on PC application Several elements of the MDK ECG system are:

• C5515 EVM

• ECG front-end board

• ECG cable

1)C5515 EVM

The EVM comes with a full compliment of on-board devices that suit a wide variety of application environments.

For further details on the C5515 EVM, see the Medical Devlopment Kit provided with your EVM.

Key components and interfaces of the C5515 EVM used in the MDK ECG system include:

• Texas Instrument’s TMS320C5515 operating at 100 MHz

• User universal serial bus (USB) port via the C5515

• Inter-integrated circuit (I2C) /serial peripheral interface (SPI) electrically erasable programmable read-only memory (EEPROM)

• External memory interface (EMIF), I2C, universal asynchronous receiver/transmitter (UART), SPI interfaces

• SAR

• External IEEE Standard 1149.1-1990, IEEE Standard Test Access Port and Boundary-Scan Architecture (JTAG) emulation interface

• Embedded JTAG controller
• Color LCD display

• Keys (user switches)

The EVM operates from a + 5 V external power supply or battery and is designed to work with TI’s Code Composer Studio™ integrated development environment (IDE). Code Composer Studio communicates with the EVM board through the external emulator, or on-board emulator.

2)ECG Front-End Board

Figure 3 shows the ECG front-end board. The potentials captured by the electrodes are passed through

the defibrillator protection (DP) circuit in the ECG front-end board. Then, the front end board derives 8 out

of 12 ECG leads and provides the digital input to the DSP subsystem. The front-end board can be

interfaced with the EVM board through a universal front-end connector. The front-end board is interfaced

with and powered by the C5515 EVM board through the universal front-end connector by using I2C and

I2S interfaces.

The 16 channel analog-to-digital converter (ADC) (ADS1258) on the front-end board is configured for 500

Hz sampling with 24-bit data resolution. ADC is interfaced with the C5515 using the SPI bus.


圖3。ECG板外形圖

3)ECG Cable

The ECG cable consists of four limb and six chest electrodes. This cable is connected to the front-end board through the DB15 connector. The ECG electrodes pick up ECG signals from the ECG simulator/patient and send them to the ECG front-end board; an off-the-shelf ECG cable is used. For more details regarding ECG cable

圖4。安裝在C5515 EVM的ECG前端外形圖

圖5。ECG 前端方框圖

圖6。DSP軟件架構(gòu)圖
前端板電路圖

圖7。前端板電路圖:ECG_I_II

圖8。前端板電路圖:ECG_LEAD_V1_V2_V3

圖9。前端板電路圖:CG_LEAD_V4_V5_V6

圖10。前端板電路圖:ECG_ADC

圖11。前端板電路圖:ECG_LEAD_OFF_DET

圖12。前端板電路圖:右腿驅(qū)動電路

圖13。前端板電路圖:PWR_CONN_INTRFCE
前端板材料清單(BOM):




圖14。ECG 電纜詳圖

本站聲明: 本文章由作者或相關(guān)機(jī)構(gòu)授權(quán)發(fā)布,目的在于傳遞更多信息,并不代表本站贊同其觀點,本站亦不保證或承諾內(nèi)容真實性等。需要轉(zhuǎn)載請聯(lián)系該專欄作者,如若文章內(nèi)容侵犯您的權(quán)益,請及時聯(lián)系本站刪除。
換一批
延伸閱讀

9月2日消息,不造車的華為或?qū)⒋呱龈蟮莫毥谦F公司,隨著阿維塔和賽力斯的入局,華為引望愈發(fā)顯得引人矚目。

關(guān)鍵字: 阿維塔 塞力斯 華為

加利福尼亞州圣克拉拉縣2024年8月30日 /美通社/ -- 數(shù)字化轉(zhuǎn)型技術(shù)解決方案公司Trianz今天宣布,該公司與Amazon Web Services (AWS)簽訂了...

關(guān)鍵字: AWS AN BSP 數(shù)字化

倫敦2024年8月29日 /美通社/ -- 英國汽車技術(shù)公司SODA.Auto推出其旗艦產(chǎn)品SODA V,這是全球首款涵蓋汽車工程師從創(chuàng)意到認(rèn)證的所有需求的工具,可用于創(chuàng)建軟件定義汽車。 SODA V工具的開發(fā)耗時1.5...

關(guān)鍵字: 汽車 人工智能 智能驅(qū)動 BSP

北京2024年8月28日 /美通社/ -- 越來越多用戶希望企業(yè)業(yè)務(wù)能7×24不間斷運(yùn)行,同時企業(yè)卻面臨越來越多業(yè)務(wù)中斷的風(fēng)險,如企業(yè)系統(tǒng)復(fù)雜性的增加,頻繁的功能更新和發(fā)布等。如何確保業(yè)務(wù)連續(xù)性,提升韌性,成...

關(guān)鍵字: 亞馬遜 解密 控制平面 BSP

8月30日消息,據(jù)媒體報道,騰訊和網(wǎng)易近期正在縮減他們對日本游戲市場的投資。

關(guān)鍵字: 騰訊 編碼器 CPU

8月28日消息,今天上午,2024中國國際大數(shù)據(jù)產(chǎn)業(yè)博覽會開幕式在貴陽舉行,華為董事、質(zhì)量流程IT總裁陶景文發(fā)表了演講。

關(guān)鍵字: 華為 12nm EDA 半導(dǎo)體

8月28日消息,在2024中國國際大數(shù)據(jù)產(chǎn)業(yè)博覽會上,華為常務(wù)董事、華為云CEO張平安發(fā)表演講稱,數(shù)字世界的話語權(quán)最終是由生態(tài)的繁榮決定的。

關(guān)鍵字: 華為 12nm 手機(jī) 衛(wèi)星通信

要點: 有效應(yīng)對環(huán)境變化,經(jīng)營業(yè)績穩(wěn)中有升 落實提質(zhì)增效舉措,毛利潤率延續(xù)升勢 戰(zhàn)略布局成效顯著,戰(zhàn)新業(yè)務(wù)引領(lǐng)增長 以科技創(chuàng)新為引領(lǐng),提升企業(yè)核心競爭力 堅持高質(zhì)量發(fā)展策略,塑強(qiáng)核心競爭優(yōu)勢...

關(guān)鍵字: 通信 BSP 電信運(yùn)營商 數(shù)字經(jīng)濟(jì)

北京2024年8月27日 /美通社/ -- 8月21日,由中央廣播電視總臺與中國電影電視技術(shù)學(xué)會聯(lián)合牽頭組建的NVI技術(shù)創(chuàng)新聯(lián)盟在BIRTV2024超高清全產(chǎn)業(yè)鏈發(fā)展研討會上宣布正式成立。 活動現(xiàn)場 NVI技術(shù)創(chuàng)新聯(lián)...

關(guān)鍵字: VI 傳輸協(xié)議 音頻 BSP

北京2024年8月27日 /美通社/ -- 在8月23日舉辦的2024年長三角生態(tài)綠色一體化發(fā)展示范區(qū)聯(lián)合招商會上,軟通動力信息技術(shù)(集團(tuán))股份有限公司(以下簡稱"軟通動力")與長三角投資(上海)有限...

關(guān)鍵字: BSP 信息技術(shù)
關(guān)閉
關(guān)閉