QDEC missing sample

RE: QDEC missing sample

Kenneth — Mon, 04 Nov 2019 11:09:35 GMT

Could you name the 3 traces in your plot?

RE: QDEC missing sample

andy_a — Fri, 01 Nov 2019 12:19:44 GMT

Hi, Kenneth:

I increased the sampling to 256 us and left the LEDPRE at the same value of 100 us and the expected A pulse was not generated, so I am not sure why. If anybody has seen missing pulses with the original settings that I stated in the original posting, please let me know. Also, if anybody sees an error in the settings or if I need to post more information, please let me know.

Thanks all.

RE: QDEC missing sample

andy_a — Thu, 31 Oct 2019 11:48:56 GMT

Hi, Kenneth. I will try reducing the sample period this afternoon and will let you know. My thinking is that since I am using the encoder simulator and it uses the LED pulses as its "clock", QDEC should be able to see all the transitions or at least "catch-up" after another sample. I will check the fifth sample, just in case the "increment" came in there. Thanks for your suggestion.

RE: QDEC missing sample

Kenneth — Thu, 31 Oct 2019 09:56:40 GMT

Can it be missed due to QDEC_CONFIG_SAMPLEPER=512us > 500us?