SM CODE COMP_SM_2
Multiple-fault protection CPU_SM_0: Periodic core self-test software
Recommendations and known limitations None
Table 84. COMP_SM_3
SM CODE COMP_SM_3
Description Multiple acquisition by Application software
Ownership End user
Detailed implementation
This method requires that Application software takes a decision not on the basis of a
comparator single-shot transition, but after multiple events or after the permanence of
comparator trigger conditions for a certain amount of time.
Error reporting Depends on implementation
Fault detection time Depends on implementation
Addressed fault model 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
It is highly probable that this recommendation is satisfied by design on End user application
- multiple acquisition is a common technique in industrial applications facing electromagnetic
interference on sensor lines.
Table 85. COMP_SM_4
SM CODE COMP_SM_4
Description Comparator lock mechanism
Ownership ST
Detailed implementation
This safety mechanism prevents configuration changes for comparator control and status
registers; it addresses therefore systematic faults in the software application.
Error reporting Not applicable
Fault detection time Not applicable
Addressed fault model None (Fault avoidance)
Dependency on Device configuration None
Initialization Lock protection must be enabled through the COMPxLOCK bits of the COMP_CSR register.
Periodicity Continuous
Test for the diagnostic Not applicable
Multiple-fault protection Not applicable
Recommendations and known limitations This method does not addresses comparator configuration changes due to soft errors.
UM2305
Hardware and software diagnostics
UM2305 - Rev 10
page 51/110
To Next Page
Loading...
Need help?
General
