Table 62. Adc_Sm_4 - ST STM32F2 Series User Manual

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
UM1845 - Rev 4
Table 62. ADC_SM_4
ADC_SM_4
1oo2 scheme for ADC inputs
End user
This safety mechanism is implemented using two different SAR ADC channels to acquire the same
input signal. The application software checks the coherence between the two readings.
It is recommended to use two different ADC modules belonging to different ADC modules
Depends on implementation
Depends on implementation
Permanent and Transient
None
Depends on implementation
On demand
Not needed
ADC_SM_0: Periodical read-back of ADC configuration registers
This method can be used in conjunction with ADC_SM_0/ ADC_SM_2/ ADC_SM_3 to achieve
highest level of ADC module diagnostic coverage
Description of hardware and software diagnostics
UM1845
page 46/108