Naguissa/uTimerLib

ARDUINO_STM32 - setInterval_s not correctly trigged

mignon-ne opened this issue · 7 comments

mignon-ne commented

I have try with Maple compatible board.
When call with any value, it trig on every 1 second.

As example:
void setup() {
Serial.begin(57600);
TimerLib.setInterval_s(timed_function, 2);
prevMillis = millis();
}

Will result in 1000

However, TimerLib.setInterval_us return correctly.
TimerLib.setInterval_us(timed_function, 2000000);
Will result in 2000

Naguissa commented

I see examples are not very correct, as you shouldn't use time-based functions inside an interrupt.

I will test this later, but, could you check this modified example result?

#include "Arduino.h"
#include "uTimerLib.h"

volatile unsigned long int prevMillis = 0;
volatile unsigned long int actMillis = 0;

void timed_function() {
	Serial.println(actMillis - prevMillis);
	prevMillis = actMillis;
}

void setup() {
	Serial.begin(57600);
	TimerLib.setInterval_s(timed_function, 2);
	prevMillis = millis();
}

void loop() {
  actMillis = millis();
}
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Naguissa commented

OK, fixed.

There was a part missing when managing interrupts on STM32 for "seconds" functions.

Also, I enhanced examples with more correct coding.

  • 👍1
mignon-ne commented
Naguissa commented

It's not possible with this library. But I suggest to do a broker function and call it at Maximum Common Divissor.

Timers is a scarce resource, so you should preserve them. Also, Arduino functions and libraries are using some of them.

I try to use less common ones, so using even more timers will limit your options.

mignon-ne commented

Thank you very much.

Not sure relate to an update or not, but seem the location is moved.
When compiled, it is completd and run successful.
However, I have warning. Possible my own issue,

Resetting USB to switch back to runtime mode
Invalid library found in C:\Users...\Documents\Arduino\libraries\uTimerLib: no headers files (.h) found in C:\Users...\Documents\Arduino\libraries\uTimerLib
Invalid library found in C:\Users...\Documents\Arduino\libraries\uTimerLib: no headers files (.h) found in C:\Users...\Documents\Arduino\libraries\uTimerLib

Naguissa commented

How did you installed/updated the library? You can do it via Library Manager on Arduino IDE.

You should check that location, seems to have any invalid copy there....

mignon-ne commented

Solved, my own issue.

Found that your library name is "arduino_339753".
Probably from update, during open that folder "uTimerLib" and files.
Removed and re-install solved.
Thanks.

  • 👍1