APM32F103TBU7-R datasheet(26/78 Pages) GEEHY

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P a g e 25

Timer type

System tick timer

General-purpose timer

Advanced timer

Prescaler factor

Any integer between 1 and 65536

Generate DMA

request

Yes

Capture/compar

e register

Complementary

output

None

Yes

characteristics

There are 5 pins in total:

1-way external trigger signal input

pins,

4-way channel

(non-complementary channel)

pins

There are 9 pins in total:

1-way external trigger signal input pins,

1-way braking input signal pins,

3-pair complementary channel pins,

1-way channel (non-complementary

channel) pins

Function

Description

Special

for

real-time

operating system

Automatic

reloading

function supported

When the counter is 0, it

can

generate

maskable

system

interrupt

Can program the clock

source

Synchronization

event

chaining function provided

The counter in debug mode

can be frozen.

Can be used to generate

PWM output

Each

timer

has

independent DMA request

mechanism.

It can process signals of the

incremental

encoder

and

digital output of 1 to 3 Hall

sensors.

It has complementary PWM output

with dead band insertion

When

configured

16-bit

standard timer, it has the same

function as the TMRx timer.

When configured as a 16-bit PWM

generator, it has full modulation

capability (0~100%).

In debug mode, timers can be

frozen,

and

PWM

output

disabled.

Synchronization or event chaining

function is provided.

4.14

WDT

The product has two built-in watchdog timers, providing higher safety, time accuracy and

flexibility in use. Two watchdog devices (independent watchdog and window watchdog) can be

used to detect and solve faults caused by software errors; when the counter reaches the given

timeout value, an interrupt is triggered (only applicable to the window watchdog) or a system

reset is generated.

Table10 Independent Watchdog and Window Watchdog Timers

Name

Counter

resolution

Counter type

Prescaler

factor

Functional Description

Hardware

watchdog

12 bits

Down

Any integer

between 1

and 256

The clock is provided by an internally independent

RC oscillator of 40KHz, so it can run in shutdown

and standby modes; the whole system can be reset

in case of problems;

It can provide timeout management for applications;

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