Cirrus-logic AN366 Manual do Utilizador descarregar pdf (Página 43)

AN366

ACCUMULATE MULTIPLE PF READING AND CONFIRM

(See Figure 39.)

SDI = 0x90 0x15 0xFFFFFF Read PF1 (page 16, register 21)

SDO = 0xFF 0xFF 0x410F40 (0.508278)

SDI = 0x90 0x19 0xFFFFFF Read PF2 (page 16, register 25)

SDO = 0xFF 0xFF 0x4106A8 (0.5080157)

For 1 to Count {

PF1SUM = PF1SUM + PF1

PF2SUM = PF2SUM + PF2}

PF1AVG = PF1SUM ÷ Count

PF2AVG = PF1SUM ÷ Count

Figure 39. Conversion Window

PHASE COMPENSATION COMPLETE

(RETURN CPCC & FPCC to MAIN)

ACCUMULATE MULTIPLE

PF READING AND

CONFIRM PF = 0.5

1 2 ... 38 39 40 41 42 43 44 45 46 47 48 49 50

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Cirrus-logic AN366 Manual do Utilizador Página 43