Cirrus-logic AN366 Manual do Utilizador descarregar pdf (Página 49)

AN366

SET POFF AND QOFF

Negate PAVG and QAVG registers and store in POFF and QOFF respectively (see

Figure 44).

SDI = 0x90 0x64 0xFFFFFF Write P1OFF (page 16, register 36)

SDO = 0xFF 0xFF 0x000003 (3.57628E-07)

SDI = 0x90 0x24 0xFFFFFF Read P1OFF (page 16, register 36)

SDO = 0xFF 0xFF 0x000003 (3.57628E-07)

SDI = 0x90 0x6B 0xFFFFFF Write P2OFF (page 16, register 43)

SDO = 0xFF 0xFF 0x000001 (1.19209E-07)

SDI = 0x90 0x2B 0xFFFFFF Read P2OFF (page 16, register 43)

SDO = 0xFF 0xFF 0x000001 (1.19209E-07)

SDI = 0x90 0x66 0xFFFFFF Write P1OFF (page 16, register 38)

SDO = 0xFF 0xFF 0x000002 (2.38419E-07)

SDI = 0x90 0x26 0xFFFFFF Read P1OFF (page 16, register 38)

SDO = 0xFF 0xFF 0x000002 (2.38419E-07)

SDI = 0x90 0x6D 0xFFFFFF Write P2OFF (page 16, register 45)

SDO = 0xFF 0xFF 0x000002 (2.38419E-07)

SDI = 0x90 0x2D 0xFFFFFF Read P2OFF (page 16, register 45)

SDO = 0xFF 0xFF 0x000002 (2.38419E-07)

Figure 45. Calibration Window

RETURN

POFF

QOFF

MAIN FLOW

POWER OFFSET

CALIBRATION

COMPLETE

NEGATE

QAVG

& STORE IN

QOFF

NEGATE

PAVG

& STORE IN

POFF

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Cirrus-logic AN366 Manual do Utilizador Página 49