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
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