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Cooperative Multitasking. A web-based article on a technique to implement CMT on tiny microcontrollers.

Part 1 describes the building blocks; part 2 has embellishments and methods to keep your code clean.

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Pat Beirne 31429c8bea added syntax parser to pick up my 'uint8' and fixed typos 2 settimane fa
build a842113249 Major release, lots of graphics, the text flows better now 2 settimane fa
CooperativeMultitasking.md 31429c8bea added syntax parser to pick up my 'uint8' and fixed typos 2 settimane fa
README.md e01c1b971a remove .html file and move the main link out of gogs...into nginx 2 settimane fa
beer_vat.dot a842113249 Major release, lots of graphics, the text flows better now 2 settimane fa
beer_vat.png a842113249 Major release, lots of graphics, the text flows better now 2 settimane fa
blb.jpg 524ef93dc0 Add link in the README, add photo of the button/light board. 2 settimane fa
c.xml 31429c8bea added syntax parser to pick up my 'uint8' and fixed typos 2 settimane fa
dispatch1.jpg a842113249 Major release, lots of graphics, the text flows better now 2 settimane fa
dispatch2.jpg a842113249 Major release, lots of graphics, the text flows better now 2 settimane fa
door.dot a842113249 Major release, lots of graphics, the text flows better now 2 settimane fa
door.png a842113249 Major release, lots of graphics, the text flows better now 2 settimane fa
door2.dot a842113249 Major release, lots of graphics, the text flows better now 2 settimane fa
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fridge_state.dot a842113249 Major release, lots of graphics, the text flows better now 2 settimane fa
fridge_state.png a842113249 Major release, lots of graphics, the text flows better now 2 settimane fa
led_state.dot a842113249 Major release, lots of graphics, the text flows better now 2 settimane fa
led_state.png a842113249 Major release, lots of graphics, the text flows better now 2 settimane fa
led_state_simple.dot a842113249 Major release, lots of graphics, the text flows better now 2 settimane fa
led_state_simple.png a842113249 Major release, lots of graphics, the text flows better now 2 settimane fa
makefile 31429c8bea added syntax parser to pick up my 'uint8' and fixed typos 2 settimane fa
pandoc.css e01c1b971a remove .html file and move the main link out of gogs...into nginx 2 settimane fa
postMessage.png a842113249 Major release, lots of graphics, the text flows better now 2 settimane fa
radio_tuner.dot a842113249 Major release, lots of graphics, the text flows better now 2 settimane fa
radio_tuner.png a842113249 Major release, lots of graphics, the text flows better now 2 settimane fa
rtb_state.dot a842113249 Major release, lots of graphics, the text flows better now 2 settimane fa
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rtb_state_2.dot a842113249 Major release, lots of graphics, the text flows better now 2 settimane fa
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rtb_state_5.dot a842113249 Major release, lots of graphics, the text flows better now 2 settimane fa
rtb_state_5.png a842113249 Major release, lots of graphics, the text flows better now 2 settimane fa
sendMessage.png a842113249 Major release, lots of graphics, the text flows better now 2 settimane fa
vending.dot a842113249 Major release, lots of graphics, the text flows better now 2 settimane fa
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window_complex.dot a842113249 Major release, lots of graphics, the text flows better now 2 settimane fa
window_complex.png a842113249 Major release, lots of graphics, the text flows better now 2 settimane fa
window_state.dot a842113249 Major release, lots of graphics, the text flows better now 2 settimane fa
window_state.png a842113249 Major release, lots of graphics, the text flows better now 2 settimane fa

README.md

This is a web-based article describing cooperative multitasking, also known as event driven programming. The method described here is small enough to fit on many sub-$1 microcontrollers, those without memory management units. Examples are the STM32, STM8, PY32, AtMega, AtTiny, 8051 and Pic microcontrollers.

With this code structure in place, these tiny microcontrollers can be made to perform multiple separate tasks, apparantly independent from each other.

The reader is walked through the elements of the build, and is then given a fully-implemented block of code. The 2nd half of the article builds on the basis, with lots of examples of state-machines and modifications to allow for cleaner code.

The audience for this article is anyone interested in writing code for small micro-controllers. A background in any programming language would help (C, Rust, Python).