TTL Serial
phillip v
Posts: 48
dose anyone know if TTL Serial can be done with the hydra-net port???
Post Edited (phillip v) : 1/30/2008 1:48:34 AM GMT
Post Edited (phillip v) : 1/30/2008 1:48:34 AM GMT
Comments
Post Edited (phillip v) : 1/30/2008 9:52:17 PM GMT
There's a jumper selectable filter on the Hydra-Net port that you can disable. That leaves you with a 3.3V logic level I/O port. Check the Hydra schematic for specifics. I don't have it handy.
I've never commented on spelling and grammar in the forum before, and I certainly never wish to be given the title "Grammar Nazi". That's not what this forum is about; and heaven knows, I've had my share of gaffes (which I prefer to call "typos"). But I sense that you're fairly young, with most of your life ahead of you. Moreover, since you list your location as "michigan", I can safely assume that English is your first language. So this seems a reasonable time and place to emphasize the importance of good grammar and correct spelling as a prerequiste, not only for career advancement, but just for being accepted as literate and well-rounded by the people you care about.
So, in case it matters (and I truly hope it does), your "yes it shude after all pink is TTL and its be run off the prop !!!!!!!!!!!!!!!!!" might better have been expressed, "Yes, it should. After all, the Pink is TTL, and it's been run from the Prop!" If you wish to know why the latter is better, I'd be more than happy to explain it in detail.
Seriously, dude, for the sake of your future well-being, learn to spell, and pick up a copy of Strunk and White's The Elements of Style or any other grammar and usage reference that speaks to you, and master it. You'll be glad you made the effort!
Thanks for listening,
-Phil
Post Edited (Phil Pilgrim (PhiPi)) : 1/30/2008 3:39:41 AM GMT
...and truly meant well by it. No offense was intended.
-Phil
Post Edited (Phil Pilgrim (PhiPi)) : 1/30/2008 4:41:53 AM GMT
If you pickup the HYDRA Blank Experimenter Card, you will have the I/O you need
for that chip.
Reading some of your posts, it looks like you are interested in hardware
experimentation. This card would be a good addition to your Hydra.
OBC
▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
New to the Propeller?
Getting started with the Protoboard? - Propeller Cookbook
Got an SD card? - PropDOS
A Living Propeller FAQ - The Propeller Wiki
(Got the Knowledge? Got a Moment? Add something today!)
For the actual hardware interface, I would recommend you try to use the hydra expansion interface connector. You'll need at least 4 pins for the SPI interface (cs, clk, si, so). I don't own a hydra so I'm not sure if this would work or not (I assume it would, since there is a SD adapter card, which would also use 4 pins for high speed SPI).
It would be helpful if you posted a bit more information. The ENC28J60 is an ethernet controller, not a PIC. There are PICs with onboard ethernet controllers, but those have high pin counts and are surface mount, which makes them much harder to use.
Harrison
by the way, I was on another forum whare I learned that TTL is possible.
quote:3.3V is fine, you can use a simple level translator or if you want to connect the 3.3v to a TTL circuit at 5V then just put pull ups to +5 on the outputs, and 100ohm inline on the inputs, that will take care of it. That's a trivial interface.
Just look up interfacing 3.3V to 5V systems.
Andre'
so I'm thinking that many of the ethernet products from www.lantronix.com would work on hydra.
Post Edited (phillip v) : 1/30/2008 3:34:13 PM GMT
Andre'