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 Go figure that by teaching you end up learning a lot through the process. ;) - Josh Fox [more] |
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| Go figure that by teaching you end up learning a lot through the process. ;) - Josh Fox [more] |
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#2
30-01-2008, 22:19
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Re: Limiting acceleration in easyC
How?
Create 2 variables, "Out" and "Old_Out", default them to 127. Store the real final PWM output to Out, and subtract Old_Out, and if the difference is greater than some rate of change (say 50), reset the value to the rate of change (Out - 50). Then set Old_Out == Out, and repeat each loop. You'll have to manage the math a little bit, to prevent exceeding 255 or zero, and maybe elsewhere, but that basic idea is a simple PID loop with only D being used. Good idea? Maybe not. Driver training is probably a better approach. Don |
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