I am using ADIS16495 . I want to measure the position of sensor (means at which angle it present) and i want to measure accurate velocity of sensor.
i am using it at it's internal frequency and DEC_RATE set to 2, now sample rate is 1416.66 sps rate. when i am using this sample i am getting wrong calculated values and when i set to 1 sps sample rate then i am getting right calculated values.
Please reply what am i doing wrong.
Thank you for your post.
How are you measuring the update rate?
Can you share the FNCTIO_CTRL register contents?
When you say "set to 1 SPS sample rate," can you share what register settings you are making, to do this?
Thank you very much for reply. i already posted many question about ADIS16495 but no one replying.
i am reading data at interrupt on DIO2 pin which is default set.
i am using internal clock , with DAC_RATE set to zero, i getting 4250 sample per second.
when i set DAC_RATE set to 3, getting 1416 sample per second.
FNCTIO_CTRL register contents = 0x000D
I am really sorry about that. We have made a number of organizational changes, which we hope, will improve our capacity to provide stronger support in this forum, but these transitions are going to take time. When you set DEC_RATE = 2, the decimation rate will be 3. 4250, divided by 3 equals 1416.7 Hz. It sounds like that is what you are seeing. Is that correct?
Yes you are right.
i asking this question because i getting wrong delta angle values at 4250 sample rate but getting right delta angle values at 1 sample rate. Which we both are discussing it on another question i already posted. You can reply on that. Thanks for that.