VSS input clarification

aidandj · Post by **aidandj** » Sat Aug 08, 2015 7:16 pm

Did a bunch of reading and just want someone to double check this plan for adding 2 inputs for VSS. Inputs will be a 0-5v switched signal.

VSS1 - PT4 with a 1k pullup to VCC.

VSS2 - Use this circuit to connect my second signal to JS10

All other inputs are in use right now.

Solid plan?

Post by **jsmcortina** » Sun Aug 09, 2015 4:39 pm

Looks ok.

James

aidandj · Post by **aidandj** » Sun Aug 09, 2015 5:45 pm

Thanks

Speedy_G · Post by **Speedy_G** » Mon Aug 10, 2015 1:17 am

and what is the maximum frequency on these inputs?

Post by **jsmcortina** » Mon Aug 10, 2015 3:59 am

The input pins are polled at 20kHz, but that's for both edges and there's in inbuild noise filter, so probably around 2500Hz. However, both of those inputs are connected to timer pins and can operate in higher speed interrupt mode.

James

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VSS input clarification

VSS input clarification

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Re: VSS input clarification

Re: VSS input clarification

Re: VSS input clarification