Re: (New York) Trade ARM9 EVBs for ARM7
- From: "MK" <nospam@xxxxxxxxxx>
- Date: Thu, 28 Aug 2008 08:28:36 +0100
"larwe" <zwsdotcom@xxxxxxxxx> wrote in message
news:bbb527a1-314e-4827-abae-5445fd9f31c6@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
So... do you have one or two spare ARM7 EVBs or header boards you're
not using?
I wanted a 32-bit micro for a little weekend project and thought I'd
use the two STR91x dongles I have here. Unfortunately the chip in
question (STR912FW44X6) is at best casually documented and requires a
full day of frustration just to get an LED blinking. So much for
getting this project finished over the Labor Day weekend; these boards
are going back into my huge archive of unwanted EVBs.
The boards have 96MHz ARM966E-S core, 512K flash, 96K RAM, device-side
USB and an Ethernet MAC, among other things - see <http://mcu.st.com/
str9_promoboard.html> for more details. These are 'lite" boards, which
mostly means no CAN transceiver. They do have the Ethernet PHY and
magnetics, and the USB connector.
I'd happily trade both of these for one or two [identical] boards
based on a decent ARM7 like the LPC2148; all I need is 32~64K of
flash, 8K of RAM and a few ADCs. Olimex header boards would be perfect
- I already have dozens of EVBs from Keil, Raisonance etc which are
useless either because they only work with one particular toolchain
(ST's STM32 Circle) or because they have all kinds of unwanted
hardware bolted onto the sides.
Email me if you're a masochist with spare time, you want to play with
Ethernet on an ARM9, and you're interested in a trade!
Hello,
I can understand that you might not like the board (I hardly ever use eval
boards) but I found the chip OK. I designed one in recently and apart from
an odd issue with a chip errata (documented and my own fault for using some
old revision chips) I found it reasonably easy to get up and running. If
you use the ST library to get started and then kick it out progressively as
you go it's not too bad at all. I thought the chip user manual and support
library documentation was quite good.
I do use the full paid for Keil tool set for ARM and had previously used the
Atmel SAM parts.
Having said all that I've given up on the STR9 in favour of the STM32 (ARM
Cortex parts) - similar performance and cheaper. I can't help but feel that
the STR9 family won't be developed much further.
Michael Kellett
.
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