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Re: 2214 "simple" board design suggestions

2004-02-28 by skykotech

> I expect there will be plenty of eval boards around shortly.  I
> believe I have heard of some 3 or 4 companies that are designing > 
> them.
> I don't know that they are all 2214s.  
> 

Oh, hmm, I was not really interested in an eval board, but rather a 
small somewhat general purpose microcontroller board that is cheap 
enough to leave in whatever prototype I make while I grab another one 
off the shelf.  I had in mind spending hopefully less than $50 or so 
per stuffed board, if I made about 25 or so.


> How did you get the samples?  My local rep has told me to forget it
> until Q4 or so.  Did you get any insight into when the parts would 
> be in production?  I am currently designing in an OKI 67Q5003, but 
> would
> like to consider this part if it is real.  The package is also an
> issue.  The TQFP144 is way too large.  So far Philips has not put 
> any
> of these chips into a QFN or BGA yet even though they are supposed 
> to have a QFN64 out shortly if I have my facts straight.  I was 
> told it is delayed due to "mechanical" issues.  Does that mean the 
> chip is too large for the package?  
> 
> 

I got the parts from Phillips direct.  It seemed pretty dang easy, I 
just sent an email saying I was interested in the 2214 and asked if I 
could have 2 to 5 samples.  They sent three.

As far as the package size....the Oki part you mention is the same 
size isn't it?   I think i remember it being a 144 pin tqfp.  If you 
want a small bga part, perhaps an atmel AT91?


> I can give you info on how the OKI ARM board is done, including info
> on an Ethernet interface.  Contact me by email. 
> 
> I would suggest that you provide space on the board for the three
> types of memory, SRAM, SDRAM and Flash.  Then the Linux people can 
do
> their thing with it.  
> 

I am not really interested in bogging down the chip with an operating 
system...when I go that route I am going to use an arm9, like the 
atmel AT91RM9200....I am just a bit scared of getting so bogged down 
with that part that I will not have time to get one of these projects 
done by spring when it is due.  I don't think you really want to 
interface SDRAM to the phillips 2214...




> I would love to see an EP1K50 mapped to the bus.  That is what our 
DSP
> board will have to provide various IO.  I wouldn't mind using your
> board as a prototype, but my guess is that ours will be ready to 
test
> before yours.  :(

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