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Setting a timer for 1 minute c4/7/2024 ![]() ![]() Simply check if 'seconds' is 60 or whatever, if it is, then execute your code. Create one or multiple timers and start them in any order. They are perfect for everyday activities such as cooking meals, taking quizzes, giving speeches, playing sports, or practicing music. The interrupt gets called every 1 second and adds 1 to 'seconds'. Create your timers with optional alarms and start/pause/stop them simultaneously or sequentially. I tested its accuracy and it works consistently down to the microsecond. Here is a slightly modified program I made to easily set up timed interrupts. This code sets the prescaler to 1024, as slow as you can get.Ī prescaler of 1024 allows for a maximum time of 8388.608mS or ~8.3 seconds clockSelectBits = _BV(CS12) | _BV(CS10) It stores the time value in the struct timespec object and takes the pointer to it as the second parameter. clockgettime is a more recent and recommended method employed in newer codebases. Alternatively, we can utilize clockgettime to achieve similar measuring goals. Its simple to use and free, just click the ' Start ' button for a countdown timer of 1 minute. Use the clockgettime Function as Timer Benchmark in C. ![]() You can also pause the timer at any time using the 'Pause' button. You can reset the timer at any time using the 'Reset' button. The timer will alert you when it expires. Press the 'Start' button to start the timer. So, cycles is NOT less than RESOLUTION - 1, therefore it was more than maximum It will be wake up you in 1 minute with an alarm. A countdown timer for 1 hour and 23 minutes. If(cycles < RESOLUTION) clockSelectBits = _BV(CS10) // no prescale, full xtalĮlse cycles = RESOLUTION - 1, clockSelectBits = _BV(CS12) | _BV(CS10) // request was out of bounds, set as maximum Alternatively, you can set the date and time to count till (or from) the event. ![]() long cycles = (F_CPU / 2000000) * microseconds // the counter runs backwards after TOP, interrupt is at BOTTOM so divide microseconds by 2 Set the hour, minute, and second for the online countdown timer, and start it. Your code, which would have showed me the library you were usingĪnyway, here is what I found in the library I ASSUME you are using. I had to do alot of googling, which most people WILL NOT DO, simply because you failed to tell us basic things about your problem, such as: First of all, PLEASE read the How To Use This Forum thread before you post. ![]()
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