自学教程：C++ I2CRead函数代码示例

/*************************************************************************** * * Function : get_wathgod_expired * * RET  : Return the value of register SwitchOffStatus * * Notes : From register 0x0F00, bits 3:3 * **************************************************************************/unsigned char get_wathgod_expired()  {    unsigned char value;    /*      * STw4500 has switched off due to primary watchdog has      * expired.      */     value = (I2CRead(SWITCH_OFF_STATUS_REG) & WATHGOD_EXPIRED_PARAM_MASK) >> 3;    return value;  }

/*************************************************************************** * * Function : get_battery_temperature_low * * RET  : Return the value of register InterruptSource19 * * Notes : From register 0x0E12, bits 0:0 * **************************************************************************/unsigned char get_battery_temperature_low()  {    unsigned char value;    /*      * 0: Btemp > BtempLow      * 1: BtempLow > Btemp      */     value = (I2CRead(INTERRUPT_SOURCE_19_REG) & BATTERY_TEMPERATURE_LOW_INTERRUPT_PARAM_MASK);    return value;  }

/*************************************************************************** * * Function : get_charging_current_limited_hs_chirp * * RET  : Return the value of register InterruptSource22 * * Notes : From register 0x0E15, bits 6:6 * **************************************************************************/unsigned char get_charging_current_limited_hs_chirp()  {    unsigned char value;    /*      * 0: inactive      * 1: charging current is limited in HS or Chirp modes.      */     value = (I2CRead(INTERRUPT_SOURCE_22_REG) & CHARGING_CURRENT_LIMITED_HS_CHIRP_ENABLE_PARAM_MASK) >> 6;    return value;  }

/*************************************************************************** * * Function : get_adp_sense_off * * RET  : Return the value of register InterruptSource12 * * Notes : From register 0x0E09, bits 4:4 * **************************************************************************/unsigned char get_adp_sense_off()  {    unsigned char value;    /*      * 0: Current source Off      * 1: Current source On      */     value = (I2CRead(INTERRUPT_SOURCE_12_REG) & CURRENT_SOURCE_ON_PARAM_MASK) >> 4;    return value;  }

/*************************************************************************** * * Function : get_battery_temperature_medium_high * * RET  : Return the value of register InterruptSource19 * * Notes : From register 0x0E12, bits 2:2 * **************************************************************************/unsigned char get_battery_temperature_medium_high()  {    unsigned char value;    /*      * 0: Btemp < BtempMedium or Btemp > BtempHigh      * 1: BtempHigh > Btemp > BtempMedium      */     value = (I2CRead(INTERRUPT_SOURCE_19_REG) & BATTERY_TEMPERATURE_MEDIUM_HIGH_INTERRUPT_PARAM_MASK) >> 2;    return value;  }

/*************************************************************************** * * Function : get_long_pressure * * RET  : Return the value of register SwitchOffStatus * * Notes : From register 0x0F00, bits 6:6 * **************************************************************************/unsigned char get_long_pressure()  {    unsigned char value;    /*      * STw4500 has switched off with a PonKey1 pressure longer      * than 10 s.      */     value = (I2CRead(SWITCH_OFF_STATUS_REG) & LONG_PRESSURE_PARAM_MASK) >> 6;    return value;  }

/*************************************************************************** * * Function : get_low_battery * * RET  : Return the value of register SwitchOffStatus * * Notes : From register 0x0F00, bits 5:5 * **************************************************************************/unsigned char get_low_battery()  {    unsigned char value;    /*      * STw4500 has switched off due to a battery level lower      * than PornVbat threshold.      */     value = (I2CRead(SWITCH_OFF_STATUS_REG) & LOW_BATTERY_PARAM_MASK) >> 5;    return value;  }

/*************************************************************************** * * Function : get_switch_cmd_off * * RET  : Return the value of register SwitchOffStatus * * Notes : From register 0x0F00, bits 0:0 * **************************************************************************/unsigned char get_switch_cmd_off()  {    unsigned char value;    /*      * STw4500 has switched off with ‘Swoff’.bit of STw4500Ctrl1      * register.      */     value = (I2CRead(SWITCH_OFF_STATUS_REG) & SWITCH_CMD_OFF_PARAM_MASK);    return value;  }

/*************************************************************************** * * Function : get_rtc_read_request * * RET  : Return the value of register RTCReadRequest * * Notes : From register 0x0F02, bits 0:0 * **************************************************************************/unsigned char get_rtc_read_request()  {    unsigned char value;    /*      * RTC data read transfer is required      * Cleared upon data transfert in watchtim register is done      */     value = (I2CRead(RTC_READ_REQUEST_REG) & RTC_READ_ENABLE_PARAM_MASK);    return value;  }

/*************************************************************************** * * Function : get_rtc_thermal_protection * * RET  : Return the value of register SwitchOffStatus * * Notes : From register 0x0F00, bits 1:1 * **************************************************************************/unsigned char get_rtc_thermal_protection()  {    unsigned char value;    /*      * STw4500 has switched off due to Thermal protection      * activation.      */     value = (I2CRead(SWITCH_OFF_STATUS_REG) & THERMAL_PROTECTION_PARAM_MASK) >> 1;    return value;  }

/*************************************************************************** * * Function : get_battery_very_low * * RET  : Return the value of register SwitchOffStatus * * Notes : From register 0x0F00, bits 2:2 * **************************************************************************/unsigned char get_battery_very_low()  {    unsigned char value;    /*      * STw4500 has switched off due to a VbatA ball level lower      * than BattOk falling threshold.      */     value = (I2CRead(SWITCH_OFF_STATUS_REG) & BATTERY_VERY_LOW_PARAM_MASK) >> 2;    return value;  }

/*************************************************************************** * * Function : get_oscillator32k_status * * RET  : Return the value of register RtcDerivation * * Notes : From register 0x0F0F, bits 2:2 * **************************************************************************/unsigned char get_oscillator32k_status()  {    unsigned char value;    /*      * 0: Xtal 32khz oscillator is stopped      * 1: Xtal 32khz oscillator is running      */     value = (I2CRead(RTC_DERIVATION_REG) & OSCILLATOR_3_2K_STATUS_PARAM_MASK) >> 2;    return value;  }

/*************************************************************************** * * Function : get_modem_i2c_clock_pullup * * RET  : Return the value of register I2cPadControl * * Notes : From register 0x1067, bits 0:0 * **************************************************************************/unsigned char get_modem_i2c_clock_pullup()  {    unsigned char value;    /*      * 0: enable internal pull-up      * 1: Disable internal pull-up      */     value = (I2CRead(I_2C_PAD_CONTROL_REG) & MODEM_I_2C_PULLUP_ENABLE_PARAM_MASK);    return value;  }

/*************************************************************************** * * Function : get_ape_i2c_data_pullup * * RET  : Return the value of register I2cPadControl * * Notes : From register 0x1067, bits 3:3 * **************************************************************************/unsigned char get_ape_i2c_data_pullup()  {    unsigned char value;    /*      * 0: enable internal pull-up      * 1: Disable internal pull-up      */     value = (I2CRead(I_2C_PAD_CONTROL_REG) & APE_I_2C_DATA_PULLUP_ENABLE_PARAM_MASK) >> 3;    return value;  }

/*************************************************************************** * * Function : get_acc_detect_pullup_supply * * RET  : Return the value of register 0xAccDetect3 * * Notes : From register 0x882, bits 1:1 * **************************************************************************/unsigned char get_acc_detect_pullup_supply()  {    unsigned char value;    /*      * 0: disable AccDetect2 Pull-up 2.1v supply      * 1: enable AccDetect2 Pull-up 2.1v supply      */     value = (I2CRead(ACC_DETECT_3_REG) & ACC_DETECT_PULLUP_SUPPLY_MASK) >> 1;    return value;  }

/*************************************************************************** * * Function : get_usb_link_status * * RET  : Return the value of register InterruptSource12 * * Notes : From register 0x0E09, bits 7:7 * **************************************************************************/unsigned char get_usb_link_status()  {    unsigned char value;    /*      * 0: UsbLink status unchanged      * 1: UsbLink status changed      */     value = (I2CRead(INTERRUPT_SOURCE_12_REG) & USB_LINK_STATUS_CHANGED_PARAM_MASK) >> 7;    return value;  }

/*************************************************************************** * * Function : get_acc_detect_pullup * * RET  : Return the value of register 0xAccDetect3 * * Notes : From register 0x882, bits 3:3 * **************************************************************************/unsigned char get_acc_detect_pullup()  {    unsigned char value;    /*      * 0: disable AccDetect2 Pull-up      * 1: enable AccDetect2 Pull-up      */     value = (I2CRead(ACC_DETECT_3_REG) & ACC_DETECT_PULLUP_MASK) >> 3;    return value;  }

/*************************************************************************** * * Function : get_adp_probe_plug * * RET  : Return the value of register InterruptSource12 * * Notes : From register 0x0E09, bits 2:2 * **************************************************************************/unsigned char get_adp_probe_plug()  {    unsigned char value;    /*      * 0: previous state      * 1: accessory plug on Vbus      */     value = (I2CRead(INTERRUPT_SOURCE_12_REG) & ADP_PROBE_PLUG_PARAM_MASK) >> 2;    return value;  }

/*************************************************************************** * * Function : get_acc_detect22_comparator * * RET  : Return the value of register 0xAccDetect3 * * Notes : From register 0x882, bits 5:5 * **************************************************************************/unsigned char get_acc_detect22_comparator()  {    unsigned char value;    /*      * 0: disable AccDetect22 comparator      * 1: enable AccDetect22 comparator      */     value = (I2CRead(ACC_DETECT_3_REG) & ACC_DETECT_22_COMPARATOR_MASK) >> 5;    return value;  }

/*************************************************************************** * * Function : get_battery_temperature_low_medium * * RET  : Return the value of register InterruptSource19 * * Notes : From register 0x0E12, bits 1:1 * **************************************************************************/unsigned char get_battery_temperature_low_medium()  {    unsigned char value;    /*      * 0: Btemp < BtempLow or Btemp > BtempMedium      * 1: BtempMedium > Btemp > BtempLow      */     value = (I2CRead(INTERRUPT_SOURCE_19_REG) & BATTERY_TEMPERATURE_LOW_MEDIUM_INTERRUPT_PARAM_MASK) >> 1;    return value;  }

/*************************************************************************** * * Function : get_srp_p_detect * * RET  : Return the value of register InterruptSource20 * * Notes : From register 0x0E13, bits 0:0 * **************************************************************************/unsigned char get_srp_p_detect()  {    unsigned char value;    /*      * 0: Inactive      * 1:SRP detected      */     value = (I2CRead(INTERRUPT_SOURCE_20_REG) & SRP_DETECTED_PARAM_MASK);    return value;  }

/*************************************************************************** * * Function : get_battery_over_voltage_interrupt * * RET  : Return the value of register InterruptSource2 * * Notes : From register 0x0E01, bits 0:0 * **************************************************************************/unsigned char get_battery_over_voltage_interrupt()  {    unsigned char value;    /*      * VbatA ball goes upper over voltage threshold (charge      * stopped)      */     value = (I2CRead(INTERRUPT_SOURCE_2_REG) & BATTERY_OVER_VOLTAGE_INTERRUPT_PARAM_MASK);    return value;  }

/*************************************************************************** * * Function : get_no_signal_c_lock32 * * RET  : Return the value of register SwitchOffStatus * * Notes : From register 0x0F00, bits 4:4 * **************************************************************************/unsigned char get_no_signal_c_lock32()  {    unsigned char value;    /*      * STw4500 has switched off due to the non presence of 32      * Khz clock.      */     value = (I2CRead(SWITCH_OFF_STATUS_REG) & NO_SIGNAL_C_LOCK_32_PARAM_MASK) >> 4;    return value;  }