SM CODE
COMP_SM_0
Detailed information on the implementation of this method can be found in
Section 3.6.14 Extended interrupt and events controller (EXTI)
.
Error reporting
Refer to NVIC_SM_0
Fault detection time
Refer to NVIC_SM_0
Addressed fault model
Refer to NVIC_SM_0
Dependency on
Device
configuration
Refer to NVIC_SM_0
Initialization
Refer to NVIC_SM_0
Periodicity
Refer to NVIC_SM_0
Test for the diagnostic
Refer to NVIC_SM_0
Multiple-fault protection
Refer to NVIC_SM_0
Recommendations and known limitations
Refer to NVIC_SM_0
Table 82.
COMP_SM_1
SM CODE
COMP_SM_1
Description
1oo2 scheme for comparator
Ownership
End user
Detailed implementation
This safety mechanism is implemented using the two internal comparators to take the same
decision. It requires that the comparator voting is handled accordingly.
Error reporting
Depends on implementation
Fault detection time
Depends on implementation
Addressed fault model
Permanent/transient
Dependency on
Device
configuration
None
Initialization
Depends on implementation
Periodicity
On demand
Test for the diagnostic
Not applicable
Multiple-fault protection
CPU_SM_0: Periodic core self-test software
Recommendations and known limitations
This method is not compatible with
window
comparator feature.
Table 83.
COMP_SM_2
SM CODE
COMP_SM_2
Description
Plausibility check on inputs
Ownership
End user
Detailed implementation
This method is used to redundantly acquire on dedicated ADC channels the analog inputs
that are subjected to comparator function, and to periodically check the coherence of the
comparator output on the measured values.
Error reporting
Depends on implementation
Fault detection time
Depends on implementation
Addressed fault model
Permanent
Dependency on
Device
configuration
None
Initialization
Depends on implementation
Periodicity
Periodic
Test for the diagnostic
Not applicable
UM2305
Hardware and software diagnostics
UM2305
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Rev 10
page 50/110
