ADAS1000 datasheet(75/80 Pages) AD

Part #	ADAS1000

Description	Low Power, Five Electrode trocardiogram (ECG) Analog Front End

PDF	80 Pages

Scroll/Zoom	100%

Manufacturer	AD [Analog Devices]

Direct Link	http://www.analog.com

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75 / 80 page

Data Sheet

ADAS1000/ADAS1000-1/ADAS1000-2

Rev. A | Page 75 of 80

SOFTWARE FLOWCHART

Figure 81 shows a suggested sequence of steps to be taken to interface to multiple ADAS1000/ADAS1000-1/ADAS1000-2 devices.

Figure 81. Suggested Software Flowchart for Interfacing to Multiple ADAS1000/ADAS1000-1/ADAS1000-2 Devices

IS CRC

CORRECT?

DRDY

LOW?

POWER UP ADAS1000

DEVICES

ADAS1000 GOES INTO

POWER-DOWN MODE

WAIT FOR POR ROUTINE

TO COMPLETE, 1.5ms

INITIALIZE SLAVE

DEVICES

INITIALIZE MASTER DEVICE

ENABLING CONVERSION

ISSUE READ FRAME

COMMAND (WRITE TO 0x40)

DISCARD

FRAME DATA

ISSUE SCLK CYCLES (SDI = 0)

TO CLOCK FRAME DATA OUT

AT PROGRAMMED DATA RATE

ACTIVITY

SDI?

RETURN

TO ECG

CAPTURE?

POWER-DOWN?

YES

ISSUE READ FRAME

COMMAND (WRITE TO 0x40)

ECG CAPTURE COMPLETE

POWER-DOWN ADAS1000

ECGCTL = 0x0

ADAS1000 STOPS CONVERTING,

SDI WORD USED TO

RECONFIGURE DEVICE

ADAS1000 Datasheet(PDF) 75 Page - Analog Devices

ADAS1000 Datasheet(HTML) 75 Page - Analog Devices

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