Re: Microcontroller ... which one ??

From: ~~ VerilogMan ~~ (Zoroxeus_at_yahoo.com)
Date: 11/24/04 

Date: Tue, 23 Nov 2004 20:43:25 -0500

"Rolavine" <rolavine@aol.com> wrote in message
news:20041123193550.07662.00001004@mb-m01.aol.com...
> >Subject: Re: Microcontroller ... which one ??
>>From: "~~ VerilogMan ~~" Zoroxeus@yahoo.com
>>Date: 11/23/04 3:32 PM Pacific Standard Time
>>Message-id: <AoCdnQRYwNLEVT7cRVn-sw@rogers.com>
>>
>>"SQLit" <SQLitnospam@cox.net> wrote in message
>>news:4rPod.340287$a85.10747@fed1read04...
>>>
>>> "~~ VerilogMan ~~" <zoroux7@rogers.com> wrote in message
>>> news:R-CdneomhMyRLD7cRVn-3Q@rogers.com...
>>>> Hello,
>>>> I am thinking of buiying this graphic display.
>>>> http://www.crystalfontz.com/products/12864cp/index.html#CFAX12864CP1WGHTS
>>>> It has a 4 analog I/O for the touch screen, and 18 I/O (the
>>>> specidications
>>>> are on the link "Data Sheet")
>>>> I have a VERY hard time trying to figure the best microcontroller to
>>>> interface it with a desktop computer on the serial port.
>>>> If you could take a look at http://dkc1.digikey.com/CA/PDF/C043/P4.html
>>>> (Microcontrollers section) and tell me wich one is the easiest / most
>>>> efficient, i would appreciate big time !
>>>> Thanks guys!
>>>>
>>>
>>> So what are you going to use it for? Pretty hard to help with this kind
>>> of
>>> information.
>>>
>>>
>>
>>Ok , the microcontroller should interpret the touch on the screen and also
>>receive infos from the computer through the RS232 port
>>It's just an Graphic display, and it is touch screen. So pretty much it is
>>to send the places where it has been touched to the computer, and send the
>>infos to be displayed from the computer..
>>
> It's hard to go wrong with the PIC's, the PIC18F series is great, however
> you
> would need a programmer like the ICD2 to work with it efficiently.
> Microchip
> and Atmel provide great free tools for assembly language, however if you
> want a
> c compiler the good ones cost money. If want C and can live with some
> restrictions, I think you could do your project using the TI 420 chips,
> and
> they have a cheap starter that comes with C. Another choice is using the
> Rabbit
> Chips.
>
> I know not much help, but just about any of the chips can do your intended
> function, so asking how you want to create the software is a good
> distinction.
>
> I checked and can see that the PIC and Atmel clocked serial modes will
> work
> with that display, that beats bit banging it out I don't know much about
> the TI
> chips as I have never used them.

Hey thanks for the different options. My first choice is C of course, and
after it's ASM... NO way ICD2 ... I don't even know what it is lol :)
The other important thing is that it has to have an A/D converter (for the
touch screen part). Someone told me to use also AMTEL actually ...
But there are so many choices... I checled the PIC 18F ... that's like 64
I/O ... what for ? I have 4 Analog and 18 I/O for the display ...
We are very limited on our budget too ... So i am trying to make it as low
as i can... the compilers should not be a problem, I am sure we have what we
need at school , or i can dl some clone or something I guess... That's not
the problem :)

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