Micropython-main-boot - Revision history

Dodomi at 18:47, 28 April 2026

2026-04-28T18:47:11Z

← Older revision		Revision as of 20:47, 28 April 2026
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			{{PYMATE-HEADER}}

	== Startup Sequence ==		== Startup Sequence ==
	When powered up, the PymateIO initialize the MicrPython virtual machine which executes the following steps.		When powered up, the PymateIO initialize the MicrPython virtual machine which executes the following steps.
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	[[File:main-strategy-watchdog.png]]		[[File:main-strategy-watchdog.png]]
	}}		}}

			{{PYMATE-TRAILER}}

2026-04-28T15:39:53Z

← Older revision		Revision as of 17:39, 28 April 2026
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	* An error occurs in {{fname\|main.py}} (which interrupts the script execution).		* An error occurs in {{fname\|main.py}} (which interrupts the script execution).

	== Create ~~the mainloop~~ ==		== Create main.py ==

	In Python and MicroPython, the {{fname\|main.py}} script is responsible for creating its mainloop.		In Python and MicroPython, the {{fname\|main.py}} script is responsible for creating its mainloop.

2026-04-28T15:37:49Z

Create the mainloop

← Older revision		Revision as of 17:37, 28 April 2026
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	Quite simple! Isn't it?		Quite simple! Isn't it?


	{{dbox-gray\|{{underline\|Remarks:}}		{{dbox-gray\|{{underline\|Remarks:}}
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	This can be solved by setting the MicroPython {{fname\|Watchdog}}. The watchdog will resets the Pymate when activities are unexpectedly halted.		This can be solved by setting the MicroPython {{fname\|Watchdog}}. The watchdog will resets the Pymate when activities are unexpectedly halted.

			This is described in the [[Main_Page#Common_use-cases\|Common use-cases tutorials]]

	[[File:main-strategy-watchdog.png]]		[[File:main-strategy-watchdog.png]]
	}}		}}

2026-04-28T15:35:54Z

Create the mainloop

← Older revision		Revision as of 17:35, 28 April 2026
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	Quite simple! Isn't it?		Quite simple! Isn't it?

	From automation perspective, ~~the mainloop~~ an error in the ~~mainloop~~
			{{dbox-gray\|{{underline\|Remarks:}}

			From automation perspective, a PLC should never stays "inactive" when an error occurs.

			This can be solved by setting the MicroPython {{fname\|Watchdog}}. The watchdog will resets the Pymate when activities are unexpectedly halted.

			[[File:main-strategy-watchdog.png]]
			}}

2026-04-28T15:31:18Z

REPL session

← Older revision		Revision as of 17:31, 28 April 2026
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	* {{fname\|main.py}} terminates its execution.		* {{fname\|main.py}} terminates its execution.
	* An error occurs in {{fname\|main.py}} (which interrupts the script execution).		* An error occurs in {{fname\|main.py}} (which interrupts the script execution).

	~~{{dbox-gray\|{{underline\|Remarks:}}~~

	~~From automation perspective, a PLC should never stays "inactive" when an error occurs.~~

	~~This can be solved by setting the MicroPython {{fname\|Watchdog}}. The watchdog will resets the Pymate when activities are unexpectedly halted. }}~~

	== Create the mainloop ==		== Create the mainloop ==

2026-04-28T15:30:53Z

Create the mainloop

← Older revision		Revision as of 17:30, 28 April 2026
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	Quite simple! Isn't it?		Quite simple! Isn't it?

			From automation perspective, the mainloop an error in the mainloop

2026-04-28T15:09:13Z

Create the mainloop

← Older revision		Revision as of 17:09, 28 April 2026
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	while True:		while True:
	# Mainloop block here</syntaxhighlight>		# Mainloop block here</syntaxhighlight>

			Quite simple! Isn't it?

2026-04-28T15:08:26Z

Create the mainloop

← Older revision		Revision as of 17:08, 28 April 2026
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	[[File:main-strategy-loop.png]]		[[File:main-strategy-loop.png]]

			The {{fname\|main.py}} file should have the following structure:

			<syntaxhighlight lang="python" line start="55"># Initialization block here

			while True:
			# Mainloop block here</syntaxhighlight>

2026-04-28T15:03:51Z

Create the mainloop

← Older revision		Revision as of 17:03, 28 April 2026
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	An '''initialization block''' usually precede the infinite loop. Its role is to create/initialize the objects/items used by the '''mainloop block'''.		An '''initialization block''' usually precede the infinite loop. Its role is to create/initialize the objects/items used by the '''mainloop block'''.

			[[File:main-strategy-loop.png]]

2026-04-28T15:02:10Z

Create the mainloop

← Older revision		Revision as of 17:02, 28 April 2026
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	The best approach is to creates an {{fname\|while True}} infinite loop running the '''mainloop block''' of instructions.		The best approach is to creates an {{fname\|while True}} infinite loop running the '''mainloop block''' of instructions.

	~~The infinite loop follows some~~ '''initialization block''' ~~creating~~/~~initializing~~ the objects/items used by the '''mainloop ~~bloc~~'''.		An '''initialization block''' usually precede the infinite loop. Its role is to create/initialize the objects/items used by the '''mainloop block'''.