System Configuration Controller (Syscfg); Table 93. Syscfg_Sm_0; Table 94. Diag_Sm_0 - ST STM32F2 Series User Manual

3.6.23

System configuration controller (SYSCFG)

SM CODE
Description
Ownership
Detailed implementation
Error reporting
Fault detection time
Addressed fault model
Dependency on MCU configuration
Initialization
Periodicity
Test for the diagnostic
Multiple faults protection
Recommendations and known limitations
SM CODE
Description
Ownership
Detailed implementation
Error reporting
Fault detection time
Addressed fault model
Dependency on MCU configuration
Initialization
Periodicity
Test for the diagnostic
Multiple faults protection
Recommendations and known limitations Refer to NVIC_SM_0
UM1845 - Rev 4
Table 93. SYSCFG_SM_0
SYSCFG_SM_0
Periodical read-back of configuration registers
End user
This method must be applied to System Configuration controller configuration registers.
This method is strongly recommended to protect registers related to hardware diagnostics
activation and error reporting chain related features.
Detailed information on the implementation of this method can be found in
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
This method is mainly overlapped by several other "configuration register read-back" required for
other MCU peripherals. It is reported here for the sake of completeness
Table 94. DIAG_SM_0
DIAG_SM_0
Periodical read-back of hardware diagnostics configuration registers
End user
In STM32F2 Series several hardware-based efficient safety mechanisms (e.g. ECC on Flash) are
available. This method shall be applied to any configuration register related to diagnostic measure
operations, including error reporting. End user shall therefore individuate configuration registers
related to:
• Hardware diagnostic enable
• Interrupt/NMI enable (if used for diagnostic error management)
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
Description of hardware and software diagnostics
Section 3.6.5
UM1845
page 64/108