RM0440 Rev 4 675/2126
RM0440 Analog-to-digital converters (ADC)
724
1. When the 1st trigger occurs, all injected master ADC channels in the group are
converted.
2. When the 2nd trigger occurs, all injected slave ADC channels in the group are
converted.
3. And so on.
A JEOS interrupt, if enabled, is generated after all injected channels of the master ADC in
the group have been converted.
A JEOS interrupt, if enabled, is generated after all injected channels of the slave ADC in the
group have been converted.
JEOC interrupts, if enabled, can also be generated after each injected conversion.
If another external trigger occurs after all injected channels in the group have been
converted then the alternate trigger process restarts by converting the injected channels of
the master ADC in the group.
Figure 143. Alternate trigger: injected group of each ADC
Note: Regular conversions can be enabled on one or all ADCs. In this case the regular
conversions are independent of each other. A regular conversion is interrupted when the
ADC has to perform an injected conversion. It is resumed when the injected conversion is
finished.
The time interval between 2 trigger events must be greater than or equal to 1 ADC clock
period. The minimum time interval between 2 trigger events that start conversions on the
same ADC is the same as in the single ADC mode.
Injected discontinuous mode enabled (JDISCEN=1 for both ADC)
MASTER ADC
ai16059-m
SLAVE ADC
JEOC on
master ADC
JEOC on
slave ADC
JEOC,JEOS on
master ADC
JEOC on
master ADC
JEOC on
slave ADC
JEOC, JEOS on
slave ADC
1st trigger
2nd trigger
MASTER ADC
SLAVE ADC
JEOC on
master ADC
JEOC on
slave ADC
JEOC,JEOS on
master ADC
JEOC on
master ADC
JEOC on
slave ADC
JEOC, JEOS on
slave ADC
3rd trigger
4th trigger
Sampling
Conversion
To Next Page
Loading...
Need help?
General
