maemo.org - Talk - Hardware Engineers: Can we replace OMAP 3430 w/ 3630 :)

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- - Hardware Engineers: Can we replace OMAP 3430 w/ 3630 :) (https://talk.maemo.org/showthread.php?t=32864)

Re: Hardware Engineers: Can we replace OMAP 3430 w/ 3630 :)

Quote:

Originally Posted by ysss (Post 951907)

aye.

we're moving back in time.

Forgive him for now knowing as he is old and obviously needs help in reading nowerdays :D

Re: Hardware Engineers: Can we replace OMAP 3430 w/ 3630 :)

Quote:

Originally Posted by abill_uk (Post 951906)

What is the spirit of this community then? is it to line your pockets?.

No, it is to share projects, code & expertise related to maemo devices. Something you fail completely at.

Re: Hardware Engineers: Can we replace OMAP 3430 w/ 3630 :)

Quote:

Originally Posted by tswindell (Post 951911)

No, it is to share projects, code & expertise related to maemo devices. Something you fail completely at.

Go to the usb thread and you will see i posted pics and a full explanation on how to cure the detached usb problem !.

Re: Hardware Engineers: Can we replace OMAP 3430 w/ 3630 :)

Quote:

Originally Posted by abill_uk (Post 951893)

Are you an engineer? if so then please go look at both data sheets for these 2 devices as it does not take a genius to work it out.

Yes I am an EE, and I know what it takes to compare those two datasheets *). I just question your notion about "it does not take a genius to work it out", as you obviously didn't get my comment about the elctrical, timing, and functional comparing of each pair of corresponding pins of 3430 and 3630. It's not sufficient when they share the same signal name. And even this very low level simple signal name comparing can't be done in a proper way in that little time it took you to come up with your bold statement. I'm used to doing things like these (it's actually my job), and I could at very best give a first guestimate of "looks like they follow same pinout scheme, on a first glance", after 30 minutes or less.

And no, I'm not going to do this fancy of checking every single pin pair, just to come up, ideally, with something like "pinout, timing, electrical, and function - all drop in compatible. Buy a TI Zoom (USD2500), unsolder the 3630 there, and replace the N900 3530 by that chip. Expected yield (when done by really SMT experienced EE): 10%, so better get 10 Zoom and 10 N900, to end with one working slightly pimped n900"

Sidenote:
If gta04 project of goldelico would've seen ANY chance to get 3630, you bet they would have picked that processor.

*) I even got the several "datasheets" of OMAP3430 on my PC here, each of them >>3000 pages. CBA to find and dl the 3630 datasheet megabytes, just out of curiosity: You found a link to them and got them, abill_uk?
/j

Re: Hardware Engineers: Can we replace OMAP 3430 w/ 3630 :)

Yay, you told a bunch of users to take their N900s apart for a problem they haven't had in order to void their warranty. Good Job!

Re: Hardware Engineers: Can we replace OMAP 3430 w/ 3630 :)

Quote:

Originally Posted by joerg_rw (Post 951918)

Yes I am an EE, and I know what it takes to compare those two datasheets. I just question your notion about "it does not take a genius to work it out", as you obviously didn't get my comment about the elctrical, timing, and functional comparing of each pair of corresponding pins of 3430 and 3630. It's not sufficient when they share the same signal name. And even this very low level simple signal name comparing can't be done in a proper way in that little time it took you to come up with your bold statement. I'm used to doing things like these (it's actually my job), and I could at very best give a first guestimate of "looks like they follow same pinout scheme, on a first glance", after 30 minutes or less.

And no, I'm not going to do this fancy of checking every single pin pair, just to come up, ideally, with something like "pinout, timing, electrical, and function - all drop in compatible. Buy a TI Zoom (USD2500), unsolder the 3630 there, and replace the N900 3530 by that chip. Expected yield (when done by really SMT experienced EE): 10%, so better get 10 Zoom and 10 N900, to end with one working slightly pimped n900"

Sidenote:
If gta04 project of goldelico would've seen ANY chance to get 3630, you bet they would have picked that processor.

/j

Pinouts look to be the same so the "electical" address as you put it will also be the same apart from the timing as they all go to similar circits but as i said i would not reccomend it.

Very difficult to be certain as we have closed components in the device so a lot of homework would be needed to even consider such a swap if at all possible.

Incidently the 3630 came out not long AFTER the 3430 hence why it was not used in the N900.

Re: Hardware Engineers: Can we replace OMAP 3430 w/ 3630 :)

Quote:

Originally Posted by tswindell (Post 951919)

Yay, you told a bunch of users to take their N900s apart for a problem they haven't had in order to void their warranty. Good Job!

Enough i told you and i suggest you go read what i said in my posts as i am sure anyone else can and will see i talked in detail about void warraty but if your stuck and have no further choice but to self repair then the answers are there no matter what you want to call it ok.

Remember your previous post that said ...."Originally Posted by tswindell View Post

No, it is to share projects, code & expertise related to maemo devices. Something you fail completely at.".

Re: Hardware Engineers: Can we replace OMAP 3430 w/ 3630 :)

Quote:

Originally Posted by abill_uk (Post 951927)

What closed components do you think block the possibility of a cpu swap?

Re: Hardware Engineers: Can we replace OMAP 3430 w/ 3630 :)

i would like to replace it with this :

Re: Hardware Engineers: Can we replace OMAP 3430 w/ 3630 :)

Quote:

Originally Posted by atilla (Post 951936)

i would like to replace it with this :

I second that, abill_uk can do it I'm sure!