Analog-to-digital converters (ADC) RM0351
494/1693 DocID024597 Rev 3
Figure 118. Alternate + regular simultaneous
If a trigger occurs during an injected conversion that has interrupted a regular conversion,
the alternate trigger is served. Figure 119 shows the behavior in this case (note that the 6th
trigger is ignored because the associated alternate conversion is not complete).
Figure 119. Case of trigger occurring during injected conversion
Combined injected simultaneous plus interleaved
This mode is selected by programming bits DUAL[4:0]=00011
It is possible to interrupt an interleaved conversion with a simultaneous injected event.
In this case the interleaved conversion is interrupted immediately and the simultaneous
injected conversion starts. At the end of the injected sequence the interleaved conversion is
resumed. When the interleaved regular conversion resumes, the first regular conversion
which is performed is alway the master’s one. Figure 120, Figure 121 and Figure 122 show
the behavior using an example.
Caution: In this mode, it is mandatory to use the Common Data Register to read the regular data with
a single read access. On the contrary, master-slave data coherency is not guaranteed.
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