Steve,
Thanks for the feedback. You guys have done an amazing job considering
the resources available to you.
I like the MSP430 instruction set because it is simple and
effective. It's too much to ask for a bone, but I wish TI would throw us
Linux dogs a scrap or two so we're not always behind designing with
their latest chips.
BTW, I can't ever envisioning the use of C++ on an embedded project, not
even if I was writing code on an embedded Linux box. I guess I'm just a
control freak - I want to know what's going on, and when.
Sincerely,
David Smead
www.amplepower.com
www.amplepower.net
On Fri, 22 Jun 2007, Steve Underwood wrote:
David Smead wrote:
Greetings,
We have a rule here that all embedded software be developed using Linux
PCs. Since we're familiar with gcc on Linux, there's nothing much to
learn about a specific target.
I've now used gcc tools for the AVR, the MSP430, and most recently ARM
processors. Because ARM does support OpenSource tools, the ARM
development environment is much more robust and up to date, plus
OpenOCD is a top-notch interface to the target and gdb.
The AVR tools have worked very well on the ATMega128, but we're not
developing anything new for it because there are too many wasted cycles
copy data from flash into RAM where it can be operated on as normal C
structures.
Given that TI doesn't actively support OpenSource development tools
for the MSP430, we're fortunate to have what we have. The tools worked
well for the one product we used them for, but with limited resources,
the OpenSource tools are going to lag when new interfaces come along,
like SpiWire, or when the PC and SP grow to 20 bits.
SpyBiWire is fully supported. The only thing we have not done to date is
support the MSP430X instruction set.
We may again develop a new product using the MSP430, if very low power
is a requirement, and there are tools to use the processor of choice.
TI should get their head out of the sand and put some real support
behind gcc tools and Linux - in the meantime we're going to use LPC
ARM chips from Philips.
Regards,
Steve
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