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A comment on How to flash an LED: writing ARM assembly for an STM32 microcontroller. Parent comment

Re:How to flash an LED: writing ARM assembly for an STM32 mi... by lochsh on Friday April 03, 2020 @07:00PM (#22774760)
Yes, probably! But you can do it yourself without one.

Here is an example in C using libopencm3, that uses timers to trigger an interrupt used to flash LEDs https://github.com/libopencm3/libopencm3-examples/tree/maste...

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Re:How to flash an LED: writing ARM assembly for an STM32 mi... by dmitrygr on Friday April 03, 2020 @08:13PM (#22775114)
that is basically a mini-os :)
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Re:How to flash an LED: writing ARM assembly for an STM32 mi... by foldr on Saturday April 04, 2020 @07:15AM (#22777596)
You can set up a wakeup interrupt using a timer by moving a few values into a few registers. It doesn't require anything like an OS. Even tiny 8-bit microcontrollers can do this.
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