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From: Andrew Jackson on 18 Dec 2008 02:35
>> You need to draw a list of pins on each component and then look at each
>> of their datasheets to see what can be shared. Some pins it won't make
>> sense to share (while it might be possible to share them in terms of
>> hardware it might lead to impossibly difficult software). Think about
>> your requirements for each component.
>>
>
> we actually considered Figure 21 (MAX3421E in a Host Application) on page
> 26 of MAX3421E DS for our application..
> are we doing it right?? we hope to finish our project before the end of
> march next year.. thank you for your kind followups.

If you are short of pins you can use just MISO on the MAX3421E. To make
life easy I would initially try and use one pin for one function: it
makes the system less complex that way and hence easier to get working.


I would also try and use a PIC that has the MSSP in it as this lets you
run the SPI interface faster.

Andrew
From: urefowei on 18 Dec 2008 02:49
i will reply later.. there has been bombing here,,
thanks..

but to answer your concern, PIC18F4550 also has Master Synchronous Serial
Port (MSSP) module..

thanks
From: Andrew Jackson on 18 Dec 2008 03:22
> i will reply later.. there has been bombing here,,
> thanks..

Keep safe.

> but to answer your concern, PIC18F4550 also has Master Synchronous Serial
> Port (MSSP) module..


Ah so it does: I was looking at 2006 copy of the datasheet.

Andrew
From: Chris H on 18 Dec 2008 08:40
In message <zrmdnbowSNYIndfUnZ2dnUVZ_o_inZ2d(a)giganews.com>, urefowei
<urefowei(a)yahoo.com> writes
>i will reply later.. there has been bombing here,,
>thanks..

Where is here?

Are you OK?
--
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\/\/\/\/\ Chris Hills Staffs England /\/\/\/\/
\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/



From: urefowei on 20 Dec 2008 01:23
Here in Iligan city, Philippines..

Andrew, I have just logged in..

>If you are short of pins you can use just MISO on the MAX3421E. To make

>life easy I would initially try and use one pin for one function: it
>makes the system less complex that way and hence easier to get working.

Our adviser suggested to use this interrupt-on-change pin from the PIC..
Pins 25-28. Can we actually supplement this either this pins for GPX??
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