http://forums.leaflabs.com/topic.php?id=9201 A place to share, learn, and grow... en-US Fri, 22 Jan 2016 00:08:23 +0000 http://bbpress.org/?v=1.0.2 q http://forums.leaflabs.com/search.php http://forums.leaflabs.com/topic.php?id=9201#post-105322 Fri, 11 Apr 2014 10:55:12 +0000 gbulmer 105322@http://forums.leaflabs.com/ <p>nickc - <em>"The one thing I didn't do was creat the exit() function. What's this specifically?"</em></p> <p>The <code>exit()</code> function terminates the program. On a machine with an Operating System, it is the last thing your program does. (Edit: strictly, there are 'hooks' which might run after <code>exit()</code> is called, but you get the idea; once a user program calls <code>exit()</code> it should never return)</p> <p>I'd recommend either:<br /> 1. never ever using <code>exit()</code>, and try to remove all uses until your programs link.<br /> 2. implement it yourself so it calls the libmaple error function <code>throb()</code> (in util.h), i.e.<br /> <code>void exit(int status) { throb(); }</code></p> <p>(Full disclosure: I am not a member of LeafLabs staff.) </p> http://forums.leaflabs.com/topic.php?id=9201#post-105321 Thu, 10 Apr 2014 12:38:13 +0000 feurig 105321@http://forums.leaflabs.com/ <p>any chance of a .deb coming out of this thread? </p> http://forums.leaflabs.com/topic.php?id=9201#post-105305 Sat, 29 Mar 2014 11:32:19 +0000 nickc 105305@http://forums.leaflabs.com/ <p>I have the example building following mconners instructions, get a clean build and can upload with make install, but the code doesn't run.</p> <p>"the --disable-newlib-supplied-syscalls was important because of conflicts in several functions, and one other thing I needed to do was create an exit() function."</p> <p>The one thing I didn't do was creat the exit() function. What's this specifically? </p> http://forums.leaflabs.com/topic.php?id=9201#post-20394 Sun, 21 Oct 2012 19:28:41 +0000 mconners 20394@http://forums.leaflabs.com/ <p>One more comment on this and I'm done :-)</p> <p>I had to install several library-dev packages, you'll get the error when compiling gcc, it's easy to figure out.</p> <p>I had to configure newlib as follows (and I upgraded to the latest versions of everything):</p> <p>../../src/newlib-1.20.0/configure --target=arm-none-eabi --prefix=$MYTOOLS --enable-interwork --disable-newlib-supplied-syscalls</p> <p>the --disable-newlib-supplied-syscalls was important because of conflicts in several functions, and one other thing I needed to do was create an exit() function.</p> <p>I had to install dfu-utils and the python serial package, but after that I coped main.cpp.example to main.cpp and did make install and all went well.</p> <p>There is quite a bit of time waiting for compiles to finish, but its not hard, good luck.</p> <p>Mike </p> http://forums.leaflabs.com/topic.php?id=9201#post-20393 Sun, 21 Oct 2012 19:16:01 +0000 ahunter10@gmail.com 20393@http://forums.leaflabs.com/ <p>Wow, thanks for the tip. I was working through the compilation issues, but had some problems with the linker I wasn't able to solve. I'll check out the link. </p> http://forums.leaflabs.com/topic.php?id=9201#post-20391 Sun, 21 Oct 2012 12:56:54 +0000 mconners 20391@http://forums.leaflabs.com/ <p>OK. I was able to follow the instructions linked above and made the arm-none-eabi gcc package on the pi. From that point on instructions for the the maple command line tools work as described.</p> <p>I may do some maple development on the pi.</p> <p>Mike </p> http://forums.leaflabs.com/topic.php?id=9201#post-20368 Fri, 19 Oct 2012 13:57:03 +0000 mconners 20368@http://forums.leaflabs.com/ <p>I was able to get through the above issues. It turns out that the declaration of enable_irq had the second parameter defined as uint, while in the actual code for the function/method it was defined as something else. Once I made them the same timer.c compiled fine. </p> <p>I then ran into the next problem, the wirish code didn't want to compile, complaining about lack of declaration of caddr_t and size_t. I think that is because the gcc distributed with debian wheezy doesn't contain newlib as part of the distribution.</p> <p>Although it seems odd, I may follow these <a href="http://www.kunen.org/uC/gnu_tool.html">instructions</a> to make an arm-none-gnueabi cross compiler for baremetal compilations on the ras-pi. </p> <p>Unless of course some enterprising person beats me to it and links it here, or figures out how to get wirish to compile on the pi with the standard compiler.</p> <p>Mike </p> http://forums.leaflabs.com/topic.php?id=9201#post-20346 Thu, 18 Oct 2012 21:29:58 +0000 mconners 20346@http://forums.leaflabs.com/ <p>It seems like you are not using the native compiler, given that the error message produced points to /home/pi/libmaple/arm/bin/arm-none-eabi-gcc, so I'm guessing that you downloaded the intel version from somewhere, unless you cross compiled it yourself.</p> <p>I went into libmaple/support/make/build-rules.mk and changed all the instances of arm-none-eabi- to blanks leaving gcc,g++, ld -v, etc...</p> <p>I then changed directory to libmaple and ran make again, it started compile several of the files using the gcc distributed with the debian install for the pi.</p> <p>This was the output:<br /> [CC] ./libmaple/adc.c<br /> [CC] ./libmaple/dac.c<br /> [CC] ./libmaple/dma.c<br /> [CC] ./libmaple/exti.c<br /> [CC] ./libmaple/flash.c<br /> [CC] ./libmaple/gpio.c<br /> [CC] ./libmaple/iwdg.c<br /> [CC] ./libmaple/nvic.c<br /> [CC] ./libmaple/pwr.c<br /> [CC] ./libmaple/rcc.c<br /> [CC] ./libmaple/spi.c<br /> [CC] ./libmaple/systick.c<br /> [CC] ./libmaple/timer.c<br /> libmaple/timer.c:318:20: error: conflicting types for 'enable_irq'<br /> libmaple/timer.c:41:20: note: previous declaration of 'enable_irq' was here<br /> libmaple/timer.c:41:20: error: 'enable_irq' used but never defined [-Werror]<br /> cc1: all warnings being treated as errors<br /> make: *** [build/./libmaple/timer.o] Error 1</p> <p>I haven't resolved those issues yet, but maybe you can start there, it seems closer than you were.</p> <p>Mike </p> http://forums.leaflabs.com/topic.php?id=9201#post-20320 Tue, 16 Oct 2012 21:03:25 +0000 ahunter10@gmail.com 20320@http://forums.leaflabs.com/ <p>thanks for the help!</p> <p>When I run "gcc --target-help", cortex-m3 is listed under the heading "Known ARM CPUs (for use with the -mcpu= and -mtune= options)" </p> <p>I am using the latest version of libmaple, downloaded from the github server yesterday.</p> <p>I am trying to compile the example file included with libmaple. I get the same error no matter what I compile. I get an error on make clean...</p> <p>pi@raspberrypi ~/libmaple $ make clean<br /> /home/pi/libmaple/arm/bin/arm-none-eabi-gcc: 1: /home/pi/libmaple/arm/bin/arm-none-eabi-gcc: Syntax error: "(" unexpected<br /> rm -rf build<br /> pi@raspberrypi ~/libmaple $ </p> http://forums.leaflabs.com/topic.php?id=9201#post-20309 Tue, 16 Oct 2012 00:11:01 +0000 feurig 20309@http://forums.leaflabs.com/ <p>you may want to do gcc --target-help and see if the cortex-m3 is supported. After that you could give us a little more to go on like in what file the syntax error occurs and which version of libmaple you are using. </p> http://forums.leaflabs.com/topic.php?id=9201#post-20301 Mon, 15 Oct 2012 20:57:04 +0000 ahunter10@gmail.com 20301@http://forums.leaflabs.com/ <p>Hello,</p> <p>I am trying to compile code for the maple on the raspberry pi, running their standard OS image. I am using the libmaple command line toolchain. Has anyone been successful with this?</p> <p>I am getting an error:<br /> /home/pi/libmaple/arm/bin/arm-none-eabi-gcc: 1: /home/pi/libmaple/arm/bin/arm-none-eabi-gcc: Syntax error: "(" unexpected</p> <p>I think this may be caused by using an incorrect compiler. Since i'm running on an ARM, I think I should be able to use the native version of gcc. </p> <p>Any suggestions for getting this working? </p>