On 08/30/2013 01:53 PM, Michael Hawkins wrote:
> Thanks to all that replied to my shockingly newbie question! I googled
> more and found the answers I needed. I love SDCC! But all of my work
> with SDCC so far has been Z80 because I've worked with Z80 for well over
> 25 years now.
>
> I wanted to switch to more modern chips. I liked the Atmel 89C55WD
> because it has four IO ports plus 24K flash and 256 SRAM. It seemed to
> be darn cheap for all of what it has built in.
>
> But now that I need more SRAM, I have to give up two ports. That's OK
> for my current project. But if anyone wants to suggest an alternative
> part before I begin development of this project then I am all ears.
>
> The project is to provide a simple web server that allows turning 8
> relays on or off. I am intending to use the ENC28J60. I've found code
> written for it using AVR and I am in the process of rewriting it for
> AT89C55WD. I am trying to do it so that it's portable to almost any
> 8051. If anyone has already done ENC28J60 code for the 8051 series, I'd
> love to see it.
An IP stack in an 8051 will be a good trick. If you can pull it off,
I'll be impressed; please publish your code. ;)
I've used the ENC28J60, but not with an 8051 or with SDCC. Nice chip
all around, though.
An 8051 implementation that I've worked with a lot is the Philips/NXP
P89C66x family. They have some on-chip "external" RAM. I've done
several commercial and hobby projects with that chip, and SDCC, with
great results.
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
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