Ameba MicroPython: [RTL8722CSM] [RTL8722DM] Timer

class Timer – General Timers
Periodical timer:
• Materials: Ameba x 1
• Steps:
There are 3 sets of general timers available to user, each at 32KHz, they are timer 1/2/3.
Here we use timer 1 as example to demonstrate how a periodical timer works.
Copy and paste the first 3 lines of code into REPL to see its effect.
from machine import Timer
t = Timer(1)  # Use Timer 1/2/3 only
t.start(2000000, t.PERIODICAL)  # Set GTimer fired periodically at duration of 2 seconds, printing text on the terminal

# To stop the periodical timer, type 
A text of “–timer triggered. to stop: type t.stop()–” will be printed on the terminal every 2 seconds.To stop the timer, simply type t.stop().
API Documents
Timer(unit [optional])
Create a timer object with given unit ID.
• unit: can be 1 / 2 / 3 for timer 1 / 2 / 3
Timer.start(microseconds [required], type [required])
This method will start a given type of timer, either one-shot or periodical, at duration of given microseconds.
• microseconds: number of microseconds interval, must be an integer
• type: either Timer. PERIODICAL or Timer.ONESHOT
This method will de-initialize the Timer object created and stop the timer.
This method will stop the timer and its timer interrupt handler. ()
This method will return the current timer tick in microsecond.
Timer.tick ()
This method will return the current timer tick in Gtimer clock(0~32768).
Timer.reload (duration_us [required])
This method will reload the timer with given duration in microsecond.
• duration_us: duration in microsecond
Please confirm that QQ communication software is installed