SM CODE DFS_SM_3
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 DFS_SM_0: Periodic read-back of DFSDM configuration registers
Recommendations and known limitations
This method can be used in conjunction with DFS_SM_0 to achieve highest level of DFSM
module diagnostic coverage (in alternative to DFS_SM_1 and DFS_SM_2).
3.6.24 Digital camera interface (DCMI)
Table 91. DCMI_SM_0
SM CODE DCMI_SM_0
Description Periodic read-back of DCMI configuration registers
Ownership End user
Detailed implementation
This method must be applied to DCMI 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 DCMI interface is available only on selected part numbers.
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 92. DCMI_SM_1
SM CODE DCMI_SM_1
Description DCMI video input data synchronization
Ownership ST
Detailed implementation
According to the nature of video data stream received, DCMI module implements
synchronization controls, from the simplest one (hardware synchronization) to the most
complex (e.g. embedded data synchronization mode). DCMI internal failures leading to the
incapability of correcting synchronizing the data stream can be therefore detected.
Error reporting No explicit error signal/message generation is provided (*).
Fault detection time Depends on implementation
Addressed fault model Permanent
Dependency on Device configuration DCMI interface is available only on selected part numbers.
Initialization Depends on implementation
Periodicity Continuous
Test for the diagnostic Not applicable
UM2305
Hardware and software diagnostics
UM2305 - Rev 10
page 54/110
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