Table 96. Oversampler Operating Modes Summary; Figure 109. Oversampling In Auto-Injected Mode; Dual Adc Modes - ST STM32L4x6 Reference Manual

RM0351
It is possible to have also the triggered mode enabled, using the TROVS bit. In this case, the
ADC must be configured as following: JAUTO = 1, DISCEN = 0, JDISCEN = 0, ROVSE = 1,
JOVSE = 1 and TROVSE = 1.
Dual ADC modes support when oversampling
It is possible to have oversampling enabled when working in dual ADC configuration, for the
injected simultaneous mode and regular simultaneous mode. In this case, the two ADCs
must be programmed with the very same settings (including oversampling).
All other dual ADC modes are not supported when either regular or injected oversampling is
enabled (ROVSE = 1 or JOVSE = 1).
Combined modes summary
The Table 96
Regular Over-
sampling
ROVSE
1
1
1
1
1
1
1
0
16.3.30

Dual ADC modes

In devices with two ADCs or more, dual ADC modes can be used (see
•
ADC1 and ADC2 can be used together in dual mode (ADC1 is master)
In dual ADC mode the start of conversion is triggered alternately or simultaneously by the
ADCx master to the ADC slave, depending on the mode selected by the bits DUAL[4:0] in
the ADCx_CCR register.

Figure 109. Oversampling in auto-injected mode

below summarizes all combinations, including modes not supported.

Table 96. Oversampler operating modes summary

Oversampler
Injected Over-
sampling ROVSM
JOVSE 0 = continued
1 = resumed
0 0
0 0
0 1
0 1
1 0
1 1
1 1
1 X
DocID024597 Rev 3
Analog-to-digital converters (ADC)
mode
Triggered
Regular mode
TROVS
0
1
0
1
X
0
1
X
Comment
Regular continued mode
Not supported
Regular resumed mode
Triggered regular resumed mode
Not supported
Injected and regular resumed
mode
Not supported
Injected oversampling
Figure 110):
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