However, if the code generator only sees an extern declaration and no definition (which might indicate that the variable is defined in assembly code, for example), then the code generator will not have allocated the object to any space or bank, and when it comes time to access the object, it has no idea how to access it. For C variables, the code generator allocates the variables into memory spaces and banks, although not specific addresses. Is it possible that you have included the header somewhere, but not added the corresponding source file into your project? That would explain why the compiler is seeing a declaration but not a definition. This variable is defined in your CO_TOOLS.c and declared in CO_TOOLS.H. If you are interested, a further description of the message is given below, but I suspect that there is a missing file in your project. Pedro.duarte It stopped complaining about lack of space but now I get the most mysterious error: Non line specific message:: warning: (2028) external declaration for identifier "_uCOB_ID_out" doesn't indicate storage locationĪlways ensure you check the user's guide to find out when errors mean. I can't attach files here (the forum doesn't allow.) but here is the link to my public dropbox with the code in case you need: I have know ideia what it is complaining about. :0: error: (500) undefined symbols: I dont even have a uCOB_ID_out variable in my code. It stopped complaining about lack of space but now I get the most mysterious error: Non line specific message:: warning: (2028) external declaration for identifier "_uCOB_ID_out" doesn't indicate storage location So i just droped the "far" qualifier in a few arrays, assuming they would be loaded in the RAM. but the compiler said that it couldn't find space for some of the vars).
I am converting all rom qualifiers according to the "migrating to XC8" tutorial: - constant rom var => replace "rom" with "const" - normal rom var => replace "rom" with "far" However I soon runt out of space on my chip - 25k80 - (I don't think the code is that big. It doesn't seem that hard but I am struggling at what seems to be the end.
Hello, I'm trying to migrate AN945 canopen stack to XC8.
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