TI公司的ECG解決方案是采用TMS320VC5505定點(diǎn)DSP,它是基于TMS320C55xDSPCPU核的定點(diǎn)DSP,它的C55x™DSP架構(gòu)可得到高性能和低功耗特性,CPU支持內(nèi)部總線架構(gòu),包括一條可編程總線,一條321位數(shù)據(jù)總總線和兩條16位數(shù)據(jù)讀總線,兩條數(shù)據(jù)寫總線和專門用于外設(shè)和DMA的其它總線.TMS320VC5505還包括4個DMA控制器,每個四路.時鐘為60MHz或100MHz,指令周期為16.67ns或10ns.主要用于無線音頻設(shè)備,回聲消除耳機(jī),手提媒體設(shè)備,視頻,工業(yè)控制,指紋
TI公司的
ECG解決方案是采用TMS320VC5505 定點(diǎn)
DSP,它是基于TMS320C55x DSP
CPU核的定點(diǎn)DSP,它的C55x™ DSP架構(gòu)可得到高性能和低功耗特性,CPU支持內(nèi)部總線架構(gòu),包括一條可編程總線,一條
321位數(shù)據(jù)總總線和兩條
16位數(shù)據(jù)讀總線,兩條數(shù)據(jù)寫總線和專門用于外設(shè)和
DMA的
其它總線. TMS320VC5505還包括4個DMA控制器,每個四路.時鐘為60MHz或
100MHz,指令周期為16.67ns或10ns.主要用于無線音頻設(shè)備,回聲消除耳機(jī),手提媒體設(shè)備,視頻,工業(yè)控制,指紋生物學(xué)和
SDR. 本文介紹了TMS320VC5505的主要特性和方框圖以及采用TMS320VC5505的ECG解決方案方框圖, ECG前端板詳細(xì)電路圖和所用材料清單(BOM).
B
asicfuncti
ons of an ECG
machine include ECG waveform display, either through LCD screen or printed pa
permedia, and heart rhythm indication as well as simple user interface through buttons. More features, such as patient record storage through convenient media, wireless/wired transfer and 2D/3D display on large LCD screen with touch screen capabilities, are required in more and more ECG products. Multiple levels of diagnostic capabilities are also assisting doctors and people without specific ECG trainings to understand ECG patterns and their indication of a certain heart condition. After the ECG signal is captured and digitized, it will be sent for display and analysis, which involves further signal processing.
圖1.TI ECG方框圖
ECG Implementation on the TMS320VC5505 DSP Medical Development Kit (Rev. A)
The TMS320VC5505 is a member of TIs TMS320C5000™ fixed-point Digital Signal Processor (DSP) product family and is designed for low-
powerapplications.
