arduino / arduino/ArduinoCore-avr
timer3 interrupt jitter
- Dominant language
- C
- Stars
- 1.5k
- Forks
- 1.1k
- PR merge metrics
- No merged PRs in 30d
Description
Using arduino 1.6.1. Board - mega2560 R3.
I have some empty project. I try to run 10 us timer interrupts and it is very unstable. It is something disables interrupts for too long. I have empty loop and setup. I am using timer3 compare mode. This affects the timer interrupts. How can I fix this?
Im sorry for my rough English.
Contributor guide
No contributing guide indexed for this repository
Research direction
Reproduce the report on an Arduino Mega2560 R3 with Arduino 1.6.1 using an otherwise empty sketch, Timer3 compare mode, and a 10 µs interrupt interval. Start by tracing the Timer3 compare interrupt handling and any interrupt masking in the AVR core; done means the interrupt timing is stable and the cause of the jitter is identified.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- arduino, c
- Domain
- embedded-iot
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100