battbak.c

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//
// battbak.c - Driver for the battbak Module.
//
//*****************************************************************************
 
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//
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#include "inc/hw_memmap.h"
 
#ifdef __MSP430_HAS_BATTERY_CHARGER__
#include "battbak.h"
 
#include <assert.h>
 
uint16_t BattBak_unlockBackupSubSystem (uint16_t baseAddress)
{
    HWREG8(baseAddress + OFS_BAKCTL) &= ~(LOCKBAK);
    return (HWREG8(baseAddress + OFS_BAKCTL) & LOCKBAK);
}
 
void BattBak_enableBackupSupplyToADC (uint16_t baseAddress)
{
    HWREG8(baseAddress + OFS_BAKCTL) |= BAKADC;
}
 
void BattBak_disableBackupSupplyToADC (uint16_t baseAddress)
{
    HWREG8(baseAddress + OFS_BAKCTL) &= ~(BAKADC);
}
 
void BattBak_switchToBackupSupplyManually (uint16_t baseAddress)
{
    HWREG8(baseAddress + OFS_BAKCTL) |= BAKSW;
}
 
void BattBak_disable (uint16_t baseAddress)
{
    HWREG8(baseAddress + OFS_BAKCTL) |= BAKDIS;
}
 
void BattBak_initAndEnableCharger (uint16_t baseAddress,
    uint8_t chargerEndVoltage,
    uint8_t chargeCurrent)
{
    HWREG16(baseAddress +
        OFS_BAKCHCTL) = CHPWD + chargerEndVoltage + chargeCurrent + CHEN;
}
 
void BattBak_disableCharger (uint16_t baseAddress)
{
    HWREG16(baseAddress + OFS_BAKCHCTL) = CHPWD;
}
 
void BattBak_setBackupRAMData (uint16_t baseAddress,
    uint8_t backupRAMSelect,
    uint16_t data)
{
    HWREG16(baseAddress + backupRAMSelect) = data;
}
 
uint16_t BattBak_getBackupRAMData (uint16_t baseAddress,
    uint8_t backupRAMSelect)
{
    return ( HWREG16(baseAddress + backupRAMSelect) );
}
 
#endif
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