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CAN2 and USBD1 could be used at the same time

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USBD1 and USBD2 could not be used at the same time

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CAN1 and CAN2 could be used at the same time

Note: Although there are actually 2 identical USBDs (with the same pins), they can't be used together, so it's equivalent to

only 1.Users can achieve "simultaneous use" by remapping (reuse of pins).

4.11.

Analog peripherals

4.11.1.

ADC

3 built-in ADCs with 12-bit accuracy, up to 21 external channels and 2 internal channels for

each ADC. The internal channels measure the temperature sensor voltage and reference

voltage respectively. ADC1 and ADC2 have 16 external channels, ADC3 generally has 8

external channels; A/D conversion mode of each channel has single, continuous, scan or

intermittent modes, ADC conversion results can be left aligned or right aligned and stored in 16

bit data register; they support analog watchdog, and DMA.

4.11.1.1.

Temperature sensor

A temperature sensor (TSensor) is built in, which is internally connected with ADC_IN16

channel. The voltage generated by the sensor changes linearly with temperature, and the

converted voltage value can be obtained by ADC and converted into temperature.

4.11.1.2.

Internal reference voltage

Built-in reference voltage VREFINT, internally connected to ADC_IN17 channel, which can be

obtained through ADC; VREFINT provides stable voltage output for ADC.

4.11.2.

DAC

Two built-in 12-bit DACs, and each corresponding to an output channel, which can be

configured in 8-bit and 12-bit modes, and the DMA function is supported. The waveform

generation supports noise wave and triangle wave. The conversion mode supports independent

or simultaneous conversion and the trigger mode supports external signal trigger and internal

timer update trigger.

4.12.

Timer

2 built-in 16-bit advanced timers (TMR1/8), 4 general-purpose timers (TMR2/3/4/5), 2 basic

timers (TMR6/7), 1 independent watchdog timer, one window watchdog timer and 1 system tick

timer.

Watchdog timer can be used to detect whether the program is running normally.

The system tick timer is the peripheral of the core with automatic reloading function. When the

counter is 0, it can generate a maskable system interrupt, which can be used for real-time

operating system and general delay.

Table 10 Function Comparison between Advanced/General-purpose/Basic and System Tick Timers

Timer type

System tick

timer

Basic timer

General-purpose timer

Advanced timer

Timer name

Sys Tick Timer

TMR6

TMR7

TMR2

TMR3

TMR4

TMR5

TMR1

TMR8

Counter resolution

24-bit

16 bits

Counter type

Down

Up, down, up/down

Up, down,

up/down

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