Re: ARM LPC22xx development tools

rickman wrote:

I recommend that you stick with the Atmel or NXP parts.

The AT91RM parts are fairly old. Atmel has a new AT91SAM9260 part
which is listed as "production" and shows stock at Digikey. They also
have the eval board for $560. I can't say why this board is so
expensive. It may have a lot on it, I don't know.

I don't know exactly why the NXP parts seem to be more popular with
smaller designers, but the Atmel parts are very good. We are using
one of the SAM7S parts here and another project is using the SAM7X.
No real issues that made trouble for us. I expect the SAM9 will be
pretty good as well. Check out the Yahoo group, AT91SAM might be a
good place to ask questions.

http://tech.groups.yahoo.com/group/AT91SAM/



Have also been doing a survey of arm 7 devices recently, to replace a Dragonball device which has gone end of life. Initially started looking at Coldfire, but most of them seem to be bga only, which I really don't want to deal with at all. Also wanted an on chip lcd controller, but only a few of the Japanese arm devices include this and again don't want to buy far east because of concerns (real or imagined) over long term commitment to supply. At the mo, it's narrowed down to Philips / NXP, Atmel or ST microelectronics, with an Epson off chip lcd controller. Of the 3, ST have the most on chip flash and ram and seem to have the best support, including complete device driver libraries (even usb) which are free to download. For hardware, Embest http://www.embedinfo.com, have the widest range and look like the best value in terms of evaluation boards and ide based gnu toolkit.

What I would like to find out is how the performance of the arm 7 devices, eg: lpc2210 compare to Dragonball VZ328 in terms of throughput. Are they much more powerfull, about the same or what ?. Can find no figures on the web for arm, in old fashioned mips style ratings...

Chris
.

Relevant Pages

  • Re: Advice neede: Atmel or Philips ARM
    ... Resources page and scroll down to the ARM Chips section. ... it is more difficult to find reasons to go with the Atmel ... Philips LPC214x is faster, in particular executing from Flash, 60 ...
    (comp.arch.embedded)
  • Re: Atmel ARM AT91SAM7S256 USB Question
    ... we are considering an ARM with a USB interface (Atmel ... Keil == ARM Real view ... Both IAR and Keil have inexpensive but GOOD JTAG-USB debuggers. ... On SAM7 Atmel work closely with IAR (the IAR Jtag is supplied with the ...
    (comp.arch.embedded)
  • Re: Advice neede: Atmel or Philips ARM
    ... uses an FTDI chip for USB, I could save that by using Atmel (Philips has ... Ethernet might be interesting later (currently using ... I'm using the Keil (now owned by ARM) tools. ... I think the Keil tools have some Ethernet support but I have not used it. ...
    (comp.arch.embedded)
  • Re: ARM LPC22xx development tools
    ... Dragonball device which has gone end of life. ... only a few of the Japanese arm devices include this and again don't want ... with an Epson off chip lcd controller. ... The LPC22xx parts are all ARM7 as are the SAM7 parts. ...
    (comp.arch.embedded)
  • Re: Which MCU has these features?
    ... > The linux-tiny project has reduced the linux kernel down to ~300kb, ... > from atmel has 2MB SRAM onboard, but I couldnt find any that has both. ... ARM based. ... you should be able to get a "single chipper". ...
    (comp.arch.embedded)