Note:
The above-described safety mechanisms addresses the DSI interface included in STM32 MCUs, including PHY.
Because actual capability of correct physical signal generation to drive the connected monitor is not addressed
by these safety mechanisms, in case such feature is considered safety relevant, End user is warned to evaluate
the adoption of adequate system-level measures.
3.6.27
Touch sensing controller (TSC)
Table 97.
TSC_SM_0
SM CODE
TSC_SM_0
Description
Periodic read-back of configuration registers
Ownership
End user
Detailed implementation
This method must be applied to TSC 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
Refer to NVIC_SM_0
Recommendations and known limitations
Refer to NVIC_SM_0
Table 98.
TSC_SM_1
SM CODE
TSC_SM_1
Description
Multiple acquisition by
Application software
Ownership
End user
Detailed implementation
This method implements a timing information redundancy by executing multiple acquisitions
on TSC input data. Multiple acquisition data are then used to determine the acquisition correct
state.
This method overlaps on the native features of the TSC module of counting events to ensure
a stable acquisition against external noise.
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
Continuous
Test for the diagnostic
Not applicable
Multiple-fault protection
CPU_SM_0: Periodic core self-test software
Recommendations and known limitations
None
UM2305
Hardware and software diagnostics
UM2305
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Rev 10
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