Lcd-Tft Display Controller (Ltdc); Table 93. Lcd_Sm_0; Table 94. Lcd_Sm_1 - ST STM32L4 Series User Manual

SM CODE
Multiple-fault protection
Recommendations and known limitations
3.6.25

LCD-TFT display controller (LTDC)

SM CODE
Description
Ownership
Detailed implementation
Error reporting
Fault detection time
Addressed fault model
Dependency on Device configuration
Initialization
Periodicity
Test for the diagnostic
Multiple-fault protection
Recommendations and known limitations
SM CODE
Description
Ownership
Detailed implementation
Error reporting
Fault detection time
Addressed fault model
Dependency on Device configuration
Initialization
Periodicity
Test for the diagnostic
Multiple-fault protection
Recommendations and known limitations
UM2305 - Rev 10
DCMI_SM_0: Periodic read-back of DCMI configuration registers
(*) For its nature, the detection of an actual hardware failure by this safety mechanism can be
confused with functional-related scenarios (e.g. camera device disconnected or powered-off).
It is responsibility of Application software to discriminate, as far as it is technically possible,
among different events.
Table 93. LCD_SM_0
Periodic read-back of LTDC configuration registers and buffer memory
End user
This method must be applied to LTDC configuration registers and to the buffer memory.
Detailed information on the implementation of this method can be found in
Section 3.6.14 Extended interrupt and events controller
Refer to NVIC_SM_0
Refer to NVIC_SM_0
Refer to NVIC_SM_0
Refer to NVIC_SM_0
Refer to NVIC_SM_0
Refer to NVIC_SM_0
Refer to NVIC_SM_0
Refer to NVIC_SM_0
Refer to NVIC_SM_0
Table 94. LCD_SM_1
LTDC acquisition by ADC channel
End user
Correct generation of LTDC driving signals is checked by ADC reading versus expected
values
Depends on implementation
Depends on implementation
Permanent
None
None
Periodic
Not applicable
CPU_SM_0: Periodic core self-test software
This method is conceived to mainly detect permanent failures affecting analog parts and
therefore the execution on periodic way is acceptable. Diagnostic coverage achievable
depends on the quantity of LTDC signals checked
Hardware and software diagnostics
DCMI_SM_1
LCD_SM_0
(EXTI).
LCD_SM_1
UM2305
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