3.6.20
Voltage reference buffer (VREFBUF)
Table 79.
VREF_SM_0
SM CODE
VREF_SM_0
Description
Periodic read-back of VREFBUF system configuration registers
Ownership
End user
Detailed implementation
This method must be applied to VREFBUF configuration registers.
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
CPU_SM_0: Periodic core self-test software
Recommendations and known limitations
Refer to NVIC_SM_0
Table 80.
VREF_SM_1
SM CODE
VREF_SM_1
Description
VREF cross-check by ADC reading
Ownership
End user
Detailed implementation
This method is based on ADC acquisition for VREF generated signal, to crosscheck with the
expected value.
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
On demand
Test for the diagnostic
Not applicable
Multiple-fault protection
CPU_SM_0: Periodic core self-test software
Recommendations and known limitations
Overlaps with ADC_SM_3 are possible.
3.6.21
Comparator (COMP)
Table 81.
COMP_SM_0
SM CODE
COMP_SM_0
Description
Periodic read-back of configuration registers
Ownership
End user
Detailed implementation
This method must be applied to COMP configuration registers.
UM2305
Hardware and software diagnostics
UM2305
-
Rev 10
page 49/110
