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Date: Wed, 19 Jan 2011 18:09:47 +0100
From: wolf_dl4yhf <dl4yhf@freenet.de>
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Subject: Re: LF: Pic or Atmel?
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Hi Stefan,

I used both (PICs and Atmels, ATmegas, and a bunch of others) and would=20
suggest to ..

- avoid 14-bit PICs (they are really dreadful if you need to do=20
arithmetics, and there is only a "pseudo-C"-like high level language.=20
16-, and especially 24- or even 32-bit "PIC" / dsPICs dont have much in=20
common with the old stuff, there are good debuggers, and 'true' C=20
compilers available for them.
- ATmegas, even the tiniest ones, have a much nicer instruction set=20
(compared with 14-bit PIC core) and are thus more suited for compiled=20
languages like "C".
My personal favourite (at the office) are ARM microcontrollers, though.=20
They are surprisingly cheap (NXP LPC2xxx series, compared to "larger"=20
PICs), *extremely* powerful, and you will find development boards for=20
them in any size and price, with all kinds of interfaces already=20
onboard. Try "Embedded Artists" for example, they are a nice starting=20
point for own development. And no, I am not related to them in any way,=20
just a satisfied customer.

Cheers,
   Wolf DL4YHF .

Am 19.01.2011 16:12, schrieb Stefan Sch=E4fer:
> Dear group, especially Andy/G4JNT,
>
> Maybe a little out of topic but very useful for LF/VLF devices:=20
> Programming microcontrollers.
>
> Before some years i worked with some PIC controllers, assembler. But=20
> in the German ham radio newspaper you rather find circuit examples=20
> programmed on an Atmel device. Now i want to buy some software and=20
> programming devices for microcontrollers and asking myselfe what i=20
> should choose, Pic or Atmel. Maybe its a question like Windows or=20
> Linux? ;-)
>
> My question would be what is the difference and the=20
> advantages/disadvantages. Is there a preferred device for practical=20
> purposes?
>
> Examples for what i want to do with a Pic or Atmel:
>
> -Programming a DDS VFO
> -A/D / D/A conversion of LF/VLF signals
> - Programming a beacon TX for 8970 Hz, directly driving a psuh-pull=20
> FET stage
> - Maybe a DCF-77 RX for generating a reference signal?
> -Regulators for battery charging
> -combinations of the above
>
> and and and
>
> I would be thankful for useful comments and hints.
>
> 73, Stefan/DK7FC
>
>
>
>
>