Entering The World Of FPGA's with a DEO-NANO P0082 - Part 4 (moving on)

RE: Entering The World Of FPGA's with a DEO-NANO P0082 - Part 4 (moving on)

rachaelp — Thu, 24 Aug 2017 07:17:37 GMT

Nice work Lucie, you're making really good progress with learning about FPGA's. I can't wait to see you're next blog in this series! [View:/resized-image/__size/16x16/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-8b99c7e3-668e-4318-8032-a70b1e316396/3513.contentimage_5F00_1.png:16:16]

Rachael

RE: Entering The World Of FPGA's with a DEO-NANO P0082 - Part 4 (moving on)

DAB — Wed, 23 Aug 2017 21:26:13 GMT

Very good project Lucie.

You are definitely answer my questions about how easy it is for a newbie to pick up and use this device.

Well done.

DAB

RE: Entering The World Of FPGA's with a DEO-NANO P0082 - Part 4 (moving on)

jc2048 — Wed, 23 Aug 2017 17:16:03 GMT

I'm a bit disappointed. Buttons? In this day and age?

Couldn't it be like the Grand Old Duke of York? When it gets to the top of the hill turning round and marching back down again?

Actually, just ignore me, you're doing great - you obviously have a talent for this kind of thing.

RE: Entering The World Of FPGA's with a DEO-NANO P0082 - Part 4 (moving on)

johnbeetem — Wed, 23 Aug 2017 16:14:36 GMT

Very nice! In the video the the button seems to work reliably, switching direction with each press. Did you see that in practice? Usually when you push or release a mechanical button you get "contact bounce" where the contacts open an close multiple times over a few milliseconds. If you get the wrong odd/even number of bounces, "direction" will toggle back to its previous value. One solution for this is to sample the switch multiple times over a 10 msec interval (or so) and do a majority filter of the result.