Peripherals interconnect matrix RM0351
292/1693 DocID024597 Rev 3
A description of dual ADC mode is provided in: Section 16.3.30: Dual ADC modes.
Triggering signals
Internal to the ADCs.
Active power mode
Run, Sleep, Low-power run, Low-power sleep.
9.3.11 From USB to timer (TIM2)
Purpose
USB (OTG_FS SOF) can generate a trigger to general-purpose timer (TIM2).
Connection of USB to TIM2 is described in Table 153: TIMx internal trigger connection.
Triggering signals
Internal signal generated by USB_FS Start Of Frame.
Active power mode
Run, Sleep.
9.3.12 From internal analog source to ADC (ADC1/ADC2/ADC3) and OPAMP
(OPAMP1/OPAM2)
Purpose
Internal temperature sensor (V
TS
) and V
BAT
monitoring channel are connected to
ADC1/ADC3 input channels.
Internal reference voltage (V
REFINT
) is connected to ADC1 input channels.
OPAMP1 and OPAMP2 outputs can be connected to ADC1 or ADC2 input channels through
the GPIO.
DAC1_OUT1 and DAC1_OUT2 outputs can be connected to ADC2 or ADC3 input
channels.
DAC1_OUT1 can be connected to OPAMP1_VINP.
DAC1_OUT2 can be connected to OPAMP2_VINP.
This is according:
• Section 16.2: ADC main features
• Section 16.3.11: Channel selection (SQRx, JSQRx)
• Figure 60: ADC1 connectivity
• Figure 62: ADC3 connectivity
• Table 116: Operational amplifier possible connections
Active power mode
Run, Sleep, Low-power run, Low-power sleep.
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