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| X-Authentication-Warning: | delorie.com: mail set sender to geda-user-bounces using -f |
| Date: | Fri, 12 Feb 2016 16:47:48 -0500 |
| Message-Id: | <201602122147.u1CLlmqo014914@envy.delorie.com> |
| From: | DJ Delorie <dj AT delorie DOT com> |
| To: | geda-user AT delorie DOT com |
| In-reply-to: | <56BE4EF3.4040209@plastitar.com> (phil@plastitar.com) |
| Subject: | Re: [geda-user] Stepper Driver Question |
| References: | <CALSZ9grFdpWEWyU2LFhoDfSYCmXatFohBFyxNGfXdS-SnZ7pBw AT mail DOT gmail DOT com> <56BE4EF3 DOT 4040209 AT plastitar DOT com> |
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> The drive for that chip is out of the audio range. The trace he posted says 10KHz, that's within *my* hearing range. The question is, is there something that's turning that into mechanical noise? Are there other variances in the PWM signal that might be audible?
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