http://forums.leaflabs.com/topic.php?id=74455 A place to share, learn, and grow... en-US Fri, 22 Jan 2016 00:00:33 +0000 http://bbpress.org/?v=1.0.2 q http://forums.leaflabs.com/search.php http://forums.leaflabs.com/topic.php?id=74455#post-105796 Thu, 29 Oct 2015 11:58:40 +0000 gbulmer 105796@http://forums.leaflabs.com/ <p>@Phono - I think it's been a few years since anyone posted about injecting a new '#define symbol'. I've just done a quick search, and can't see anything, and I can't remember any of the details. Clearly, you could change one of the common include files to have an #define.</p> <p>IIRC, without control of the build system, the only ways I can suggest to have two files with the same name, with the Maple IDE, are to<br /> a. replicate up the directory tree until you get above the directory name it is using, or<br /> b. put an 'Archive' directory into the directories effected, and write a little script to 'swizzle' the changed files between the real and archive directories, or<br /> c. use a source code control system which is 'friendly' to your process, and keep them on separate branches. You could probably use git for this.</p> <p>You might consider looking at <a href="http://www.stm32duino.com/" rel="nofollow">http://www.stm32duino.com/</a><br /> They have added a LeafLabs Maple compatible build system to the Arduino IDE. They may have a more direct way to control builds. </p> http://forums.leaflabs.com/topic.php?id=74455#post-105794 Thu, 29 Oct 2015 03:55:38 +0000 Phono 105794@http://forums.leaflabs.com/ <p>Yes, I am using the (legacy) maple IDE 0.0.12.<br /> So far, I have modified the Ethernet library with a few #ifdef around the changes, and added some #include that refer to the FreeRTOS library. What I miss, is being able to put a #define somewhere in the sketch to tell the Ethernet library whether it should use the original or the modified version.<br /> A side question : I have duplicated the Ethernet subdirectory in the library directory, to keep the original one, that I have renamed EthernetOriginal. But when I put in my sketch the line<br /> #include "Ethernet.h"<br /> How can I tell the compiler which version to take, from the original or the modified directory?<br /> I suspect that this is not possible. Does it mean that no two files in the library should have the same name even if they are in two different directories? </p> http://forums.leaflabs.com/topic.php?id=74455#post-105791 Wed, 28 Oct 2015 22:06:25 +0000 gbulmer 105791@http://forums.leaflabs.com/ <p>How are you building and linking your program and the two libraries now? Are you using the Maple IDE?</p> <p>The linker can link calls from one library to another. </p> <p>To achieve that, either<br /> a. the libraries can not be independent, one must depend on the other, or<br /> b. all operations which need to be atomic must be 'wrap' with some code which protects them.</p> <p>Neither of these approaches <em>prevent</em> the libraries being compiled separately.</p> <p>(Full disclosure: I am not a member of LeafLabs staff.) </p> http://forums.leaflabs.com/topic.php?id=74455#post-105789 Wed, 28 Oct 2015 07:54:55 +0000 Phono 105789@http://forums.leaflabs.com/ <p>Hi,<br /> I have a project where I use and ethernet shield, and that requires multitasking through the use of FreeRTOS.<br /> After encountering problems with the project at debug time, I ended with the conviction that it came from the fact that when two tasks access the shield, there must be a protection scheme around the read and write functions of the W5100.cpp module, to keep the SPI transactions atomic.<br /> I started to implement the changes to the Ethernet library, but as far as I understand, each library is compiled separately before the sketch itself.<br /> As a consequence, I cannot call from the Ethernet library functions that are defined in the FreeRTOS library. So far, the only obvious solution is to merge both libraries, which is a thing I do not want.<br /> Is there a means to call from one library functions of another library, while keeping both libraries separate? </p>