Temperature Sensor; Figure 89. Alternate + Regular Simultaneous; Figure 90. Case Of Trigger Occurring During Injected Conversion - ST STM32F446 Series Reference Manual

Analog-to-digital converter (ADC)
Otherwise, the ADC with the shortest sequence may restart while the ADC with the longest
sequence is completing the previous conversions.
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.
If a trigger occurs during an injected conversion that has interrupted a regular conversion, it
is ignored.

Figure 90. Case of trigger occurring during injected conversion

13.10

Temperature sensor

The temperature sensor can be used to measure the ambient temperature (T
device.
•
On STM32F446xx devices, the temperature sensor is internally connected to the same
input channel, ADC1_IN18, as VBAT: ADC1_IN18 is used to convert the sensor output
voltage or VBAT into a digital value. Only one conversion, temperature sensor or VBAT,
must be selected at a time. When the temperature sensor and the VBAT conversion
are set simultaneously, only the VBAT conversion is performed.
Figure 91
380/1328

Figure 89. Alternate + regular simultaneous

Figure 90 shows the behavior in this case (2nd trigger is ignored).
shows the block diagram of the temperature sensor.
RM0390 Rev 4
RM0390
) of the
A