similar to: Has anybody tried to program MSP430 microcontrollers from TI?

Hello, Several people have expressed interest in using LLVM to target MSP430 microcontrollers. Anton wrote an MSP430 backend as an exercise, and some of the nastiest parts are done (thanks Anton!), but the consensus seems to be that there's still quite a bit of work left to do before LLVM can replace the commercial and open-source compilers (IAR, CCE, CrossWorks, mspgcc, and so on) that

Interested in building a speex codec (basically audio <-> speex <-> data stream) using TI's small MSP430 microcontroller. Is there any way to estimate feasibility based on CPU requirements? Example - speex is happily encoding on an old Pentium-1 processor (166 MHz) using about half the CPU (as reported under Linux); the TI microcontrollers are much slower yet (8-16-25 MHz) and

Hello, when trying to access a certain HTML-frame, I get: "in `request'': Unhandled response (WWW::Mechanize::ResponseCodeError)" and the page returns: "400 Bad Request" * Why? * How to solve this? With browser, it works. In the logs below, I marked 4 lines with "***", where I see possible differences in the URI. But I don''t know, if this is

I''m trying to submit data in JSPWiki (edit page). I can read the data in the form, but nothings get saved when I submit the page. Cancel doesn''t work either. I don''t get any errors. There is no JavaScript used to submit the form. After I''m logged in I do the following: def save(page, content) @agent.get(@base_url + "Edit.jsp?page=#{page}")

Cortex-M0 is a Thumb1 only device. There hasn't been any concerted effort to tune LLVM's Thumb1 output in quite a long time. Even back then (2008 or so), the effort was mainly to get it to work acceptably, with the real performance tuning work being done for Thumb2. I'm not surprised that an embedded market focussed compiler like IAR is better tuned for a chip like that. -Jim On Feb

Hi, I didn't do any serious benchmarking but so far I never found a case where LLVM does better than IAR on CortexM0, but I saw a lot of cases where IAR output is better than LLVM... That said I did not use -Os or -Oz, I just used -O3. A recurrent situation is that LLVM push/pop one or two extra registers compared to IAR, I guess it does so in order to comply with a standard ABI or

I've not run any on non-iOS devices, and haven't looked at GCC since v4.2.1 due to licensing issues, so I don't have a good feel for comparative benchmarking. -Jim On Feb 26, 2013, at 4:20 PM, Reed Kotler <rkotler at mips.com> wrote: > What about benchmarks on other Arm devices? > > On 02/26/2013 02:52 PM, Jim Grosbach wrote: >> Cortex-M0 is a Thumb1 only

What about benchmarks on other Arm devices? On 02/26/2013 02:52 PM, Jim Grosbach wrote: > Cortex-M0 is a Thumb1 only device. There hasn't been any concerted > effort to tune LLVM's Thumb1 output in quite a long time. Even back then > (2008 or so), the effort was mainly to get it to work acceptably, with > the real performance tuning work being done for Thumb2. I'm not >

Hai, This is amar. I have a situation like installing IAR compiler on Fedora 8 so i installed compiler with the help of wine 1.2. It successfully installed :) but i got a problem during build the programs it is asking the Dongle key(USB) Drivers.This Dongle key is Licensed key provided by IAR vendor. These Drivers are not installed during Installation process. so I add USB patch to wine1.2

I haven't tried using -Os/z on any ARM device for the last 3 years, and back then, -Os would break many things. People normally care about code size on Cortex-R/M and ARM9 or older, and in there, not many LLVM users. --renato On 27 February 2013 00:38, Jim Grosbach <grosbach at apple.com> wrote: > I've not run any on non-iOS devices, and haven't looked at GCC since >

Have you tried armv7? -bw On Feb 2, 2013, at 3:50 PM, matic at nimp.co.uk wrote: > I gave the following function to IAR compiler (targeting CortexM0) and to clang/LLVM 3.2 (clang -O3 -target thumbv6-eabi -emit-llvm) > > int calleeSave8(int in[]){ > int out=0; > int i; > for(i=0;i<8;i++){ > out ^= in[i] & in[(i+1)%8]; > }//expand to out =

I gave the following function to IAR compiler (targeting CortexM0) and to clang/LLVM 3.2 (clang -O3 -target thumbv6-eabi -emit-llvm) int calleeSave8(int in[]){ int out=0; int i; for(i=0;i<8;i++){ out ^= in[i] & in[(i+1)%8]; }//expand to out = (in[0]&in[1])^(in[1]&in[2])^(in[2]&in[3])^(in[3]&in[4])^(in[4]&in[5])^(in[5]&in[6])^(in[6]&in[7])^(in[7]&in[0])

Hi, clang -O3 -target thumbv7-eabi -emit-llvm ... llc ... -debug -O3 -code-model=small -march=thumb -mcpu=cortex-m3 ... Does generate slightly better code, but it still computes 7 xor + 7 and. Anyway this should be a target independent optimization isn't it ?? Cheers Sebastien On 2013-02-04 16:46, Bill Wendling wrote: > Have you tried armv7? > > -bw > > On Feb 2,

I''m new to Ruby/Rails I want to create Tabs similar to these... http://demo.raibledesigns.com/struts-menu/tabbedMenu.jsp;jsessionid=aM2yeUTgLeTbY7WLAZ;jsessionid=aBFrrGHWQim4pwSPAZ?People Can someone outline the best method? Specifically, Is creating a tabs.html in \..apps\views\layouts and using class PhotoController < ApplicationController layout "tabs" ....in my

Hello, I'm trying to install CodeWarrior for Microcontrollers, an IDE used for development of embedded systems using microcontrollers from Freescale. (the Special Edition is available freely from their web page) The install begins correctly, however it aborts suddenly. Terminal output is: (7) [renan at amaranth:~] $ wine /media/Renan/CW_MCU_V6_2_SE_11262008.exe

Trying to submit a form is resulting in the following error: >> page = agent.submit(f, f.buttons.first) query: "action=start&quick=Y&clientApp=0&clientID=MCO" Net::HTTP::Post: /dealerApply/controller.jsp using cookie: JSESSIONID=GJ4NCvGJDTlrvrKsLw17hZ3FnlXFdVkvB5hh1jLkHKcH4Tn27371!-538794652 request-header: accept-language => en-us,en;q0.5 request-header: connection

Hi, I am currently working on C5505 USB stick http://focus.ti.com/docs/toolsw/folders/print/tmdx5505ezdsp.html to sample input voice and encode it. For compiling and buring usual programs, I am using CCStudio 4.0. For encoding voice samples, I am using Speex codec binary http://downloads.xiph.org/releases/speex/speex-1.2beta3-win32.zip or