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Schmitt Triggers on IO for Mojo v3?

Posted: May 1st, 2017, 4:38 pm
by cerkit
Do the IO pins on the Mojo v3 have built-in Schmitt triggers that I can enable?

Re: Schmitt Triggers on IO for Mojo v3?

Posted: May 8th, 2017, 2:17 pm
by embmicro
As far as I can tell, the Spartan 6 does not have Schmitt triggers built in. However, depending on your needs you might be able to use some internal logic to serve the same purpose.

Re: Schmitt Triggers on IO for Mojo v3?

Posted: May 11th, 2017, 3:46 am
by cerkit
embmicro wrote:As far as I can tell, the Spartan 6 does not have Schmitt triggers built in. However, depending on your needs you might be able to use some internal logic to serve the same purpose.
Thanks, I scoured the documentation, but wasn't entirely sure what I was looking for.

Re: Schmitt Triggers on IO for Mojo v3?

Posted: May 16th, 2017, 11:26 am
by embmicro
Yea their documents on this were a bit unclear but the only mentions I saw of being able to enable them were on CPLDs or a different FPGA family.

Re: Schmitt Triggers on IO for Mojo v3?

Posted: December 19th, 2017, 2:57 pm
by PaulF8080
New guy browsing old posts. That is an old circuit for providing hysteresis on on an input.

See: https://www.xilinx.com/support/answers/23310.html

Re: Schmitt Triggers on IO for Mojo v3?

Posted: March 18th, 2018, 7:11 pm
by cerkit
PaulF8080 wrote:
December 19th, 2017, 2:57 pm
New guy browsing old posts. That is an old circuit for providing hysteresis on on an input.

See: https://www.xilinx.com/support/answers/23310.html
Thanks for the link.