Re: 8- to 16-bit Embedded System Upgrade

From: Not Really Me (scott_at_exoXYZtech.com)
Date: 07/23/04 

Date: Fri, 23 Jul 2004 08:59:02 -0600

karlbkeller wrote:
> Hi! We're on a new project with the golden opportunity to upgrade a
> system from an 8-bit 8051 to a 16-bit MPU TBD.
>
> The application is pretty straightforward bit fiddling, with a clock
> interrupt and (USB?) link to a Windows PC. It's a basic interruptible
> single-tasking app, so it doesn't need a real time kernel. We want to
> move from assembler to C/C++ source, so compiler/library and debug
> tools will be important. The low-volume instrument product needs
> availability and high reliability, not rock-bottom parts cost.
>
> Any pointers to your favorite MPU and/or tools? (Or boos for the one
> you love to hate?)
>
> It's been a while since I made this architectural decision, and I
> don't want to miss a good choice or be a specsmanship victim!
>
> I'd value your suggestions.

Depends on so many variables like cost, power, tools, etc., but I'd consider
an ARM7 based chip. There are many choices from many chip vendors with all
kinds of peripheral options and plenty of tools. 

-- 
Scott
ExoTech R&D, Inc.

Relevant Pages

  • Re: WTD: WWVB receiver
    ... it could be a corner of a chip. ... But now I don't have to wait for a Digikey order if I quickly need to pipe out some alphanumeric data. ... Looks like buying an atomic clock at Walmart and parting it out is going to cost less. ...
    (sci.electronics.design)
  • Re: Good older P4 mobo to base a video machine on?
    ... The exact same thing is true for P4 Northwoods, which are clock ... and have resurrected the P3 for processors such as the Pentium D 8xx ... serious cost benefits. ... SDRAM since it can be had dirt cheap so I can fill it up (hopefully a gig ...
    (rec.video.desktop)
  • Re: Good older P4 mobo to base a video machine on?
    ... The exact same thing is true for P4 Northwoods, which are clock ... P4's are perfectly SSE2 capable. ... and a watercooling rig that will just by itself cost hundreds of dollars: ... Intel have finally dumped NetBurst and ...
    (rec.video.desktop)
  • Re: Nixie clocks: possibly an AH clock?
    ... >> The surplus market is full of old electronic components necessary to ... >> build the clock. ... > I think the cost of old nixies might surprise you. ...
    (alt.horology)
  • Re: ADC "stacking"
    ... What are your targets for clock time trimming and for jitter? ... Cost has to be reasonable, a buck per location would be ...
    (sci.electronics.design)