Please help me select an appropriate processor

From: Rapscallion (andysarnat_at_nospam.msn.com)
Date: 09/30/04 

Date: Wed, 29 Sep 2004 18:18:10 -0400

Twenty years ago I built a gadget based on a Zilog Z8 8-bit processor and a
2716 Eprom. I want to re-do the entire design using a more modern chip --
preferably in the PIC family (a DIP device that so I can wire up the board
on the kitchen table).

The software was written in assembly language, and I was proud that the
code was tight enough to occupy less than 1K. It also requires about 50
bytes of variables (scratchpad registers).

On the hardware side, it requires a real-time clock (with prescaler, it
generates 1 msec interrupts) and only one input line and 8 output lines.
Blazing speed is not necessary (the Z8 was clocked at 8 MHz.)

I know these are fairly modest requirements. The biggest problem was that
the Z8 was a power-hungry NMOS device and is probably obsolete now. I
still want to use assembly language, so I'd like to avoid BASIC-Stamps.

Any suggestions for choosing an OTP DIP (or SIP) device? Thanks in
advance.

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  • Re: Please help me select an appropriate processor
    ... >preferably in the PIC family (a DIP device that so I can wire up the board ... >On the hardware side, it requires a real-time clock (with prescaler, it ... >still want to use assembly language, so I'd like to avoid BASIC-Stamps. ...
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  • Re: Please help me select an appropriate processor
    ... "Rapscallion" wrote in message ... > preferably in the PIC family (a DIP device that so I can wire up the board ... > still want to use assembly language, so I'd like to avoid BASIC-Stamps. ...
    (comp.arch.embedded)