STMicroelectronics STM32F407 User Manual

Analog-to-digital converter (ADC) RM0090
412/1731 DocID018909 Rev 11
ADC has to perform an injected conversion. It is resumed when the injected conversion is
finished.
If the conversion sequence is interrupted (for instance when DMA end of transfer occurs),
the multi-ADC sequencer must be reset by configuring it in independent mode first (bits
DUAL[4:0] = 00000) before reprogramming the interleaved mode.
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.
Dual ADC mode
• When the 1st trigger occurs, all injected ADC1 channels in the group are converted
• When the 2nd trigger occurs, all injected ADC2 channels in the group are converted
• and so on
A JEOC interrupt, if enabled, is generated after all injected ADC1 channels in the group
have been converted.
A JEOC interrupt, if enabled, is generated after all injected ADC2 channels in the group
have been converted.
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 ADC1
channels in the group.
Figure 58. Alternate trigger: injected group of each ADC
If the injected discontinuous mode is enabled for both ADC1 and ADC2:
• When the 1st trigger occurs, the first injected ADC1 channel is converted.
• When the 2nd trigger occurs, the first injected ADC2 channel are converted
• and so on
A JEOC interrupt, if enabled, is generated after all injected ADC1 channels in the group
have been converted.
A JEOC interrupt, if enabled, is generated after all injected ADC2 channels in the group
have been converted.
If another external trigger occurs after all injected channels in the group have been
converted then the alternate trigger process restarts.
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STMicroelectronics STM32F407 Specifications

General

Brand	STMicroelectronics
Model	STM32F407
Category	Controller
Language	English