Cirrus-logic AN366 Manual de usuario Pagina 26

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AN366
26 AN366REV2
START CONTINUOUS CONVERSION
(See Figure 18.)
SDI = 0xD5 Send Continuous Conversion Command
Figure 18. Conversion Window
WAIT FOR TSETTLE TIME
Wait for Tsettle time.
CLEAR DRDY in INTERRUPT STATUS
SDI = 0x80 0x57 0x800000 Write DRDY Interrupt in Status 0
SDO = 0xFF 0xFF 0xFFFFFF (Page 0, Register 23)
DRDY SET?
SDI = 0x80 0x18 0xFFFFFF Read Status 1 for DRDY Interrupt (Not Set).
SDO = 0xFF 0xFF 0x4XXXXX (Page 0, Register 24)
SDI = 0x80 0x18 0xFFFFFF Read Status 1 for DRDY Interrupt (Set).
SDO = 0xFF 0xFF 0xCXXXXX (Page 0, Register 24)
WAIT 2 SEC
Tsettle = 2000ms
START
CONTINUOUS
CONVERSION
0xD5
11
12
CLEAR DRDY
DRDY
SET?
NO
YES
13
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