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Author Topic: Spi->8 Outputs  (Read 260 times)

Morglum

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« Reply #15 on: June 08, 2004, 08:59:00 AM »

Oh also, how much you planning on selling these for gg? I might take a couple off you, i dont really want to be spending $65 on an LCD when i could buy one for like $15  :)

This post has been edited by No_Remorse_666: Jun 9 2004, 06:38 PM
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ghostavel

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« Reply #16 on: June 08, 2004, 09:15:00 AM »

nice work greengiant cant wait for ur schematics.
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ghostavel

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« Reply #17 on: June 08, 2004, 01:44:00 PM »

some of us want lcd ,some dont .u cant please everyone but green giant is contributing to the ones who want a cheap lcd solution.green can keep everthing for himself but yet he is giving to the scene but some of you say its wrong ,i really dont understand.
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rbn

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« Reply #18 on: June 08, 2004, 02:13:00 PM »

That's Awesome!
Did you have to do any tricky soldering to do it?
eg: straight onto the CPLD chip?

This is great, now I don't need to buy an expensive serial LCD  :D

Keep it up.
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Morglum

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« Reply #19 on: June 08, 2004, 02:22:00 PM »

QUOTE (ghostavel @ Jun 8 2004, 09:44 PM)
some of us want lcd ,some dont .u cant please everyone but green giant is contributing to the ones who want a cheap lcd solution.green can keep everthing for himself but yet he is giving to the scene but some of you say its wrong ,i really dont understand.

Totally agree. What greengiant has done will in effect save those of you that want a cheaper LCD around $40 US or so, parrallel LCDs are far cheaper than SPI LCDs. Even if you dont want an LCD you may do in the future, by which point im sure you'd sooner save abit of cash by spending about $15 US on an LCD insted of $60 US on one.




EDIT:

@RBN: There shouldnt be any tricky soldering to do, i would imagine greengiants circuit connects directly to the Xenium SPI socket, and then you would just solder your LCD unit onto the circuit greengiant designed, which will no doubt have some nice big pads to solder on  smile.gif
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greengiant

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« Reply #20 on: June 08, 2004, 03:26:00 PM »

Wow. Didnt exepect this much bickering.

I didnt ask for the XOS2 source, as someone else pointed out. I will give the nessesary modifications to Ozxodus and it will be upto them to choose to implement it or not. It is in their best interest for their customers to make it possible to use a cheap LCD.
The delay of the OS is not because of this LCD stuff. I guarantee you that.
The LCD stuff would delay the release by 1 minute at most.

There is no tricky soldering required,
1 IC, a few resistors, a few diodes and depending on how you want to connect it to the LCD some 8-12 wires.

The main delay right now, Iam waiting to get the special Xenium connectors. I may have found the part, but not sure.

Cost: The prototype cost me around $11 and that had alot of extra stuff. Iam looking at around $10 for a finished version, and about $5 for doit your selfers.

And the nice thing, the LCD's can be found for about $10.
Edit: I just saw a 40x2 on ebay for $6. How cheaper can you get.

This post has been edited by greengiant: Jun 8 2004, 10:40 PM
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Wall_Fodder

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« Reply #21 on: June 08, 2004, 08:18:00 PM »

@greengiant

I ordered a couple of those Molex connectors you mentioned in the other thread. They should be here tomorrow. I'll let you know if they work or not.

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greengiant

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« Reply #22 on: June 08, 2004, 08:24:00 PM »

Thanks for checking.
I have measured as much as I can, and they seem to be the correct ones.

Look forward to hearing from you.
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flabbergast

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« Reply #23 on: June 09, 2004, 05:16:00 AM »

Connectors are JST SR series

10SR-3S is the 10 pole expansion port one
2SR-3S is the 2 pole d0 one

The females for those are
SM10B-SRSS-TB 10 pole
SM02B-SRSS-TB 2 pole


Hope that helps
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Wall_Fodder

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« Reply #24 on: June 09, 2004, 07:47:00 AM »

hmm...flabbergast has those connectors right. I just can't find anyone who has them. I ordered some samples from JST.
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No_Remorse_666

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« Reply #25 on: June 09, 2004, 10:55:00 AM »

smile.gif


EDIT: There,thread cleaned. As stated above please lets keep the thread on topic
and stop the bickering. smile.gif

Thanks again
NR
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greengiant

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« Reply #26 on: June 09, 2004, 04:06:00 PM »

Wall_Fodder: The molex connectors, did they work ?

I checked over the JST connectors against the ones I have. (I do have the 'official' ones used for the Xenium port, So Iam checking against those)
The JST ones are somewhat different, they are of IDC crimp style, while the 'official' ones have actual little crimps that are inserted into the connector.

The important thing is that the width/height/depth match the Xen connector, as well as the pin size and alignment. Apart from that, whatever works is good.

I sure would like to know your results from the Molec ones, Wall_Fodder, if you received them yet.

Thanks No_Remorse for the cleaning.
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Wall_Fodder

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« Reply #27 on: June 09, 2004, 08:00:00 PM »

Yeah, I got them. I didn't have a chance to tear open my box before I had to go to work today, sorry. About to do that right now.

BTW...I'm pretty sure that JST part is the connector on the Xenium board. As far as the crimp versus IDC for the socket, they also have a crimp style socket that works with the same header. The part# is SHR-10V-S.

Ok, just checked those Molex connectors. They're just a hair too tall, and about a 16th of an inch too long. Close, but no cigar.

This post has been edited by Wall_Fodder: Jun 10 2004, 03:28 AM
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flabbergast

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« Reply #28 on: June 09, 2004, 10:03:00 PM »

I got the molex males and females (as stated above they miss out by a little bit both ways fitting in.)

after removing the standard JST connector my 2 Xeniums now have molex connectors that i can get plugs easily for.

The ozxodus guy i spoke to said the jst ones were the ones they used on the boards and refered me thru to the datasheet.

The JST are just too hard to get in australia unless you are buying 1000 or a complete reel.



This post has been edited by flabbergast: Jun 10 2004, 05:06 AM
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greengiant

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« Reply #29 on: June 10, 2004, 09:36:00 AM »

Wall_Fodder oh to bad. Thanks for trying.

flabbergast thanks for the explanation. The Male one did match, but the female one didn thats my reason for what I said before.
Good idea what you did, on mine ive removed it completely and just soldered the wires directly to the xenium.

The SHR-10V-S does match with the ones I have been given. Great.

Update:
Talked to a JST distributor and the connectors are INCREDIBLY cheap.
Around 7 cents each, and from this distributer there is no minimum to buy. Iam going to get a few samples and go from there.

This post has been edited by greengiant: Jun 10 2004, 09:12 PM
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