core.con.htu21d.spin

{
    --------------------------------------------
    Filename: core.con.htu21d.spin
    Author: Jesse Burt
    Description: HTU21D-specific constants
    Copyright (c) 2021
    Started Jun 16, 2021
    Updated Jun 16, 2021
    See end of file for terms of use.
    --------------------------------------------
}

CON

' I2C Configuration
    I2C_MAX_FREQ    = 400_000                   ' device max I2C bus freq
    SLAVE_ADDR      = $40 << 1                  ' 7-bit format slave address
    T_POR           = 15_000                    ' startup time (usecs)

' Register definitions
    TEMPMEAS_CS     = $E3
    RHMEAS_CS       = $E5
    TEMPMEAS        = $F3
    RHMEAS          = $F5
    WR_USR_REG      = $E6
    RD_USR_REG      = $E7
    USR_REG_MASK    = $C7
        ADCRES_MSB  = 7
        ADCRES_LSB  = 0
        BATT        = 6
        HEATER      = 2
        DIS_OTP_REL = 1
        ADCRES_MASK = ((1 << ADCRES_MSB) | (1 << ADCRES_LSB)) ^ USR_REG_MASK
        BATT_MASK   = (1 << BATT) ^ USR_REG_MASK
        HEATER_MASK = (1 << HEATER) ^ USR_REG_MASK
        DIS_OTP_MASK= (1 << DIS_OTP_REL) ^ USR_REG_MASK

    SOFTRESET       = $FE

PUB null{}
' This is not a top-level object

DAT
{
Copyright 2022 Jesse Burt

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}