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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
I still haven't got answered my previous questions! I don't know how to get access to the buffer that included timer(QEITIME) values?
another question: what is the practical difference between set register & enable register(QEISET & QEIIES)? Can you give me an example please?
Amir hejazi1365[at]gmail[dot]com Best regards