app_fault_monitor.c

/* 
 * @file   app_fault_monitor.c
 * Author: M91406
 * @brief  Fault monitor application layer source file
 * Revision history: 
 */
 
#include <stddef.h>
 
#include "config/hal.h"
#include "config/apps.h"
 
// Define fault objects
volatile struct FAULT_OBJECT_s fltobj_BuckUVLO;
volatile struct FAULT_OBJECT_s fltobj_BuckOVLO;
volatile struct FAULT_OBJECT_s fltobj_BuckOCP;
volatile struct FAULT_OBJECT_s fltobj_BuckRegErr;
 
// Declare private function prototypes 
volatile uint16_t __attribute__((always_inline)) uvlo_FaultInitialize(void);
volatile uint16_t __attribute__((always_inline)) ovlo_FaultInitialize(void);
volatile uint16_t __attribute__((always_inline)) ocp_FaultInitialize(void);
volatile uint16_t __attribute__((always_inline)) regerr_FaultInitialize(void);
 
// Variables
volatile uint16_t FaultRecoveryCounter=0;
 
 
volatile uint16_t appFaultMonitor_Execute(void) 
{
    volatile uint16_t retval=1;
    static bool pre_fault_active=false;
    
    // Call fault handler
    retval &= drv_FaultHandler_CheckObject(&fltobj_BuckUVLO);
    retval &= drv_FaultHandler_CheckObject(&fltobj_BuckOVLO);
    retval &= drv_FaultHandler_CheckObject(&fltobj_BuckRegErr);
    retval &= drv_FaultHandler_CheckObject(&fltobj_BuckOCP);
 
    // Combine individual fault bits to a common fault indicator
    buck.status.bits.fault_active = (bool) (
        fltobj_BuckUVLO.Status.bits.FaultStatus | 
        fltobj_BuckOVLO.Status.bits.FaultStatus |
        fltobj_BuckRegErr.Status.bits.FaultStatus |
        fltobj_BuckOCP.Status.bits.FaultStatus 
        );
    
    // If system has recovered from a global fault condition, 
    // trigger fault recovery function
    if ((pre_fault_active) && (!buck.status.bits.fault_active))
    { 
        if (FaultRecoveryCounter++ < BUCK_FAULT_RESTART_CYCLES)
        { retval = appPowerSupply_Resume(); } // Initiate restart attempt
        else
        { // Latch Fault Condition keeping power supply disabled
            buck.status.bits.fault_active = true; 
            buck.status.bits.fault_latch = true; 
            FaultRecoveryCounter = BUCK_FAULT_RESTART_CYCLES;
        }
    }
    
    // If power supply controller passes POWER GOOD and reaches state ONLINE,
    // reset restart cycle counter
    if (buck.state_id.bits.opstate_id == BUCK_OPSTATE_ONLINE)
        FaultRecoveryCounter = 0;
 
    // Track global fault bit transitions
    pre_fault_active = buck.status.bits.fault_active;
    
    
    return (retval);
}
 
 
volatile uint16_t appFaultMonitor_Initialize(void) 
{
    volatile uint16_t retval=1;
    
    // Initialize user fault objects
    retval &= uvlo_FaultInitialize();
    retval &= ovlo_FaultInitialize();
    retval &= ocp_FaultInitialize();
    retval &= regerr_FaultInitialize();
    
    return(retval);
}
 
 
volatile uint16_t appFaultMonitor_Dispose(void) 
{
    fltobj_BuckUVLO = fltObjectClear; // Delete Under Voltage Lock Out object
    fltobj_BuckOVLO = fltObjectClear; // Delete Over Voltage Lock Out object
    fltobj_BuckRegErr = fltObjectClear; // Delete Regulation Error object
    fltobj_BuckOCP = fltObjectClear; // Delete Over Current Protection object
    
    return(1);
}
 
 
/* *********************************************************************************
 * PRIVATE FUNCTIONS
 * ********************************************************************************/
 
 
volatile uint16_t uvlo_FaultInitialize(void)
{
    volatile uint16_t retval=1;
    
    // Initialize UVLO fault object
    fltobj_BuckUVLO = fltObjectClear;  // Pre-initialize fault object
    
    fltobj_BuckUVLO.SourceObject.ptrObject = &buck.data.v_in;   // Set pointer to variable to monitor
    fltobj_BuckUVLO.SourceObject.bitMask = 0xFFFF;      // Compare all bits of SOURCE (no bit filter)
    fltobj_BuckUVLO.ReferenceObject.ptrObject = NULL;   // Clear pointer to "compare against" variable 
    fltobj_BuckUVLO.ReferenceObject.bitMask = 0xFFFF;   // Clear pointer to "compare against" variable 
 
    fltobj_BuckUVLO.Status.bits.CompareType = FLTCMP_LESS_THAN; // Select Compare-Type
 
    fltobj_BuckUVLO.TripResponse.compareThreshold = BUCK_VIN_UVLO_TRIP;    // Set fault trip level
    fltobj_BuckUVLO.TripResponse.eventThreshold = BUCK_UVLO_TDLY;    // Set counter level at which a FAULT condition will be tripped
    fltobj_BuckUVLO.TripResponse.ptrResponseFunction = &appPowerSupply_Suspend; // Set pointer to user-function which should be called when a FAULT is tripped
 
    fltobj_BuckUVLO.RecoveryResponse.compareThreshold = BUCK_VIN_UVLO_RELEASE;   // Set fault recovery level
    fltobj_BuckUVLO.RecoveryResponse.eventThreshold = BUCK_UVLO_RDLY;     // Set counter level at which a FAULT condition will be cleared
    fltobj_BuckUVLO.RecoveryResponse.ptrResponseFunction = NULL; // Clear recovery function pointer
    
    fltobj_BuckUVLO.Counter = 0; // Clear fault event counter
    fltobj_BuckUVLO.Status.bits.FaultActive = true; // Set fault condition flag (must be cleared by fault check)
    fltobj_BuckUVLO.Status.bits.FaultStatus = true; // Set fault flag (must be cleared by fault check)
    fltobj_BuckUVLO.Status.bits.Enabled = true; // Enable fault checks
    
    return(retval);
    
}
 
 
volatile uint16_t ovlo_FaultInitialize(void)
{
    volatile uint16_t retval=1;
 
    // Initialize OVLO fault object
    fltobj_BuckOVLO = fltObjectClear;  // Pre-initialize fault object
 
    fltobj_BuckOVLO.SourceObject.ptrObject = &buck.data.v_in;   // Set pointer to variable to monitor
    fltobj_BuckOVLO.SourceObject.bitMask = 0xFFFF;    // Compare all bits of SOURCE (no bit filter)
    fltobj_BuckOVLO.ReferenceObject.ptrObject = NULL; // Clear pointer to "compare against" variable 
    fltobj_BuckOVLO.ReferenceObject.bitMask = 0xFFFF; // Compare all bits of SOURCE (no bit filter)
    fltobj_BuckOVLO.Status.bits.CompareType = FLTCMP_GREATER_THAN; // Select Compare-Type
 
    fltobj_BuckOVLO.TripResponse.compareThreshold = BUCK_VIN_OVLO_TRIP;    // Set fault trip level
    fltobj_BuckOVLO.TripResponse.eventThreshold = BUCK_OVLO_TDLY;    // Set counter level at which a FAULT condition will be tripped
    fltobj_BuckOVLO.TripResponse.ptrResponseFunction = &appPowerSupply_Suspend; // Set pointer to user-function which should be called when a FAULT is tripped
 
    fltobj_BuckOVLO.RecoveryResponse.compareThreshold = BUCK_VIN_OVLO_RELEASE;   // Set fault recovery level
    fltobj_BuckOVLO.RecoveryResponse.eventThreshold = BUCK_OVLO_RDLY; // Set counter level at which a FAULT condition will be cleared
    fltobj_BuckOVLO.RecoveryResponse.ptrResponseFunction = NULL; // Clear recovery function pointer
    
    fltobj_BuckOVLO.Counter = 0;        // Clear fault event counter
    fltobj_BuckOVLO.Status.bits.FaultActive = true; // Set fault condition flag (must be cleared by fault check)
    fltobj_BuckOVLO.Status.bits.FaultStatus = true; // Set fault flag (must be cleared by fault check)
    fltobj_BuckOVLO.Status.bits.Enabled = true; // Enable fault checks
            
    return(retval);
    
}
    
 
volatile uint16_t regerr_FaultInitialize(void)
{
    volatile uint16_t retval=1;
 
    // Initialize regulation error fault object
    fltobj_BuckRegErr = fltObjectClear;  // Pre-initialize fault object
 
    fltobj_BuckRegErr.SourceObject.ptrObject = &buck.data.v_out; // Set pointer to variable to monitor
    fltobj_BuckRegErr.SourceObject.bitMask = 0xFFFF; // Compare all bits of SOURCE (no bit filter)
    fltobj_BuckRegErr.ReferenceObject.ptrObject = &buck.set_values.v_ref; // Set pointer to "compare against" variable 
    fltobj_BuckRegErr.ReferenceObject.bitMask = 0xFFFF; // Compare all bits of Reference (no bit filter)
    fltobj_BuckRegErr.Status.bits.CompareType = FLTCMP_GREATER_THAN; // Select Compare-Type
 
    fltobj_BuckRegErr.TripResponse.compareThreshold = BUCK_VOUT_DEV_TRIP;    // Set fault trip level
    fltobj_BuckRegErr.TripResponse.eventThreshold = BUCK_REGERR_TDLY; // Set counter level at which a FAULT condition will be tripped
    fltobj_BuckRegErr.TripResponse.ptrResponseFunction = &appPowerSupply_Suspend; // Set pointer to user-function which should be called when a FAULT is tripped
 
    fltobj_BuckRegErr.RecoveryResponse.compareThreshold = BUCK_VOUT_DEV_RELEASE;   // Set fault recovery level
    fltobj_BuckRegErr.RecoveryResponse.eventThreshold = BUCK_REGERR_RDLY; // Set counter level at which a FAULT condition will be cleared
    fltobj_BuckRegErr.RecoveryResponse.ptrResponseFunction = NULL; // Clear recovery function pointer
    
    fltobj_BuckRegErr.Counter = 0;        // Clear fault event counter
    fltobj_BuckRegErr.Status.bits.FaultActive = false; // Set fault condition flag (must be cleared by fault check)
    fltobj_BuckRegErr.Status.bits.FaultStatus = false; // Set fault flag (must be cleared by fault check)
    fltobj_BuckRegErr.Status.bits.Enabled = false; // Disable fault checks at startup
    
    return(retval);
    
}
    
 
volatile uint16_t ocp_FaultInitialize(void)
{
    volatile uint16_t retval=1;
 
    // Initialize OCP fault object
    fltobj_BuckOCP = fltObjectClear;  // Pre-initialize fault object
 
    fltobj_BuckOCP.SourceObject.ptrObject = &buck.data.i_out;   // Set pointer to variable to monitor
    fltobj_BuckOCP.SourceObject.bitMask = 0xFFFF;  // Compare all bits of SOURCE (no bit filter)
    fltobj_BuckOCP.ReferenceObject.ptrObject = NULL;  // Clear pointer to "compare against" variable 
    fltobj_BuckOCP.ReferenceObject.bitMask = 0xFFFF;  // Compare all bits of SOURCE (no bit filter)
    fltobj_BuckOCP.Status.bits.CompareType = FLTCMP_GREATER_THAN; // Select Compare-Type
 
    fltobj_BuckOCP.TripResponse.compareThreshold = BUCK_ISNS_OCL;    // Set fault trip level
    fltobj_BuckOCP.TripResponse.eventThreshold = BUCK_OCP_TDLY;    // Set counter level at which a FAULT condition will be tripped
    fltobj_BuckOCP.TripResponse.ptrResponseFunction = &appPowerSupply_Suspend; // Set pointer to user-function which should be called when a FAULT is tripped
 
    fltobj_BuckOCP.RecoveryResponse.compareThreshold = BUCK_ISNS_OCL_RELEASE;   // Set fault recovery level
    fltobj_BuckOCP.RecoveryResponse.eventThreshold = BUCK_OCP_RDLY;     // Set counter level at which a FAULT condition will be cleared
    fltobj_BuckOCP.RecoveryResponse.ptrResponseFunction = NULL; // Clear recovery function pointer
    
    fltobj_BuckOCP.Counter = 0;        // Clear fault event counter
    fltobj_BuckOCP.Status.bits.FaultActive = false; // Set fault condition flag (must be cleared by fault check)
    fltobj_BuckOCP.Status.bits.FaultStatus = false; // Set fault flag (must be cleared by fault check)
    fltobj_BuckOCP.Status.bits.Enabled = false; // Enable fault checks    
 
    return(retval);
    
}
 
// end of file