Combined Regular/Injected Simultaneous Mode; Figure 49. Alternate Trigger: 4 Injected Channels (Each Adc) In Discontinuous Mode; Figure 50. Alternate Trigger: Injected Group Of Each Adc - ST STM32F40 Series Reference Manual

Hide thumbs Also See for STM32F40 Series:
Table of Contents

Advertisement

RM0090

Figure 49. Alternate trigger: 4 injected channels (each ADC) in discontinuous mode

1st trigger
ADC1
ADC2
2nd trigger
Triple 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.
When the 3rd trigger occurs, all injected ADC3 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.
A JEOC interrupt, if enabled, is generated after all injected ADC3 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 50. Alternate trigger: injected group of each ADC

1st trigger
EOC, JEOC
on ADC1
ADC1
ADC2
2nd trigger
EOC, JEOC
on ADC2
11.9.5

Combined regular/injected simultaneous mode

It is possible to interrupt the simultaneous conversion of a regular group to start the
simultaneous conversion of an injected group.
Note:
In combined regular/injected simultaneous mode, one must convert sequences with the
same length or ensure that the interval between triggers is longer than the long conversion
time of the 2 sequences (Dual ADC mode) /3 sequences (Triple ADC mode). Otherwise, the
3rd trigger
5th trigger
4th trigger
4th trigger
EOC, JEOC
on ADC1
3rd trigger
5th trigger
EOC, JEOC
on ADC3
Doc ID 018909 Rev 4
7th trigger
6th trigger
(n)th trigger
. . .
Analog-to-digital converter (ADC)
JEOC on ADC1
JEOC on ADC2
8th trigger
Sampling
Conversion
(n+1)th trigger
(n+2)th trigger
Sampling
Conversion
ai16060
ai16061
286/1422

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the STM32F40 Series and is the answer not in the manual?

Questions and answers

This manual is also suitable for:

Stm32f41 seriesStm32f42 seriesStm32f43 seriesRm0090

Table of Contents

Save PDF