Hi I want to draw graphs of position of 2-phased QEI versus time. so I want to capture QEI position every time period. time gap between to position pulses is at least 7.2 microseconds. I think I have to choose one of these methods:
1-send position to USB during time overflow interrupt(TIM_INT)
2-send content of the timer when the situation changes. (I don't know if it is possible to sense the changes as an interrupt?)
I think there are some restrictions due to interrupt latancy. so what is the highest resolution for my system. and which method is better? How can I define interrupt for 2nd method? can i send data to buffer and send batch buffer to USB? Is it help me Reduce interrupt latancy effects? HOW? Please Help me Best Regards
You helped me a lot Dear Mr Westermark. I'll have more & more questions after the test.
Thanks alot Amir