2020-04-09 08:40:57 +00:00
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| Supported Targets | ESP32 |
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2016-12-22 01:18:15 +00:00
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# Example: timer_group
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This example uses the timer group driver to generate timer interrupts at two specified alarm intervals.
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2017-09-25 04:20:12 +00:00
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## Functionality Overview
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* Two timers are configured
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* Each timer is set with some sample alarm interval
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* On reaching the interval value each timer will generate an alarm
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* One of the timers is configured to automatically reload it's counter value on the alarm
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* The other timer is configured to keep incrementing and is reloaded by the application each time the alarm happens
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* Alarms trigger subsequent interrupts, that is tracked with messages printed on the terminal:
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```
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Example timer with auto reload
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Group[0], timer[1] alarm event
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------- EVENT TIME --------
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Counter: 0x000000000000000a
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Time : 0.00000200 s
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-------- TASK TIME --------
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Counter: 0x00000000000107ff
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Time : 0.01351660 s
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Example timer without reload
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Group[0], timer[0] alarm event
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------- EVENT TIME --------
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Counter: 0x00000000092ae316
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Time : 30.76111800 s
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-------- TASK TIME --------
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Counter: 0x00000000092bd535
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Time : 30.77351460 s
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```
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