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CCS compiler
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  • Forum Post: CCS Compiler Support for sprintf

    Lee Ackerson
    The C compiler manual for CCS states that only a skeleton version of sprintf is available and it is only used for a Time function. I tried converting float to string using sprint and it seemed to compile, except that it tried to load .sysmen, located in M0SARAM, but could allocate enough space. I am...
    on Jan 28, 2010

  • Forum Post: How to remove the unreferenced variables from .bss section ?

    johnson lung
    I am using CCS V3.3 and cgtools 5.2.4 For the unused functions, I can use the compiler option(-mo) --gen_func_subsections to remove the unused function from the final image. For the declared but unreferenced variables, I don't know which option of compiler or linker that can remove the unreferenced...
    on May 3, 2010

  • Forum Post: Call to labs() sometimes generates incorrect assembly for an 8-bit signed integer

    Alp44785
    Hi, I found a problem in the generated code for the following scenario: when calling the labs() function for an 8-bit signed integer and the result is stored in an unsigened 8-bit integer, the sign extension step is missing from the generated assembly code, which in fact calls the abs() function....
    on Jul 21, 2010

  • Forum Post: Re: undefined symbol referencing errors

    Aaron Rangel
    Hi Mariana, I'm programming an application for motion control motor, and when I compile the files I get the next messages: <Linking> undefined first referenced symbol in file --------- ---------------- _F281X_EV2_PWM_Init C:\tidcs\DMC\c28\7-04-2010\PMSM_3_2\PMSM3_2_281x_V322\v32x...
    on Sep 16, 2010

  • Forum Post: Similar Symbol

    Marius Kramer
    At the moment i convert a RTOS which is linkable with the ARM Ltd (RVCT), to an version which is linkable with the tms470 Compiler from CCS. I solved all the convertion problems until one. In the ARM Ltd (RVCT) Compiler there is an symbol which is called Image $$ ZI $$ Limit. The description of...
    on Oct 8, 2010

  • Forum Post: Creating Header Files with CCS

    Giovanni Montoya
    Hello: I have written large amounts of code and would like to combine it in a library. I have never created a library or a header file and I have a few questions about doing so in CCS. How do I debug a header file in CCS? Aside from adding "#include<myheader.h>" to the top of...
    on May 10, 2011

  • Forum Post: CCS 4.2.3, MSP430: C initializer "={0}" only initializes the first field in a structure

    Scott Gilbertson
    When I initialize a structure with "{0}", only the first field in the structure is initialized. I can work around the problem by specifying a zero for every field in the structure (e.g. "{0,0,0}"), but that's not as maintainable. Is the problem with "={0}" a compiler...
    on Jul 21, 2011

  • Forum Post: Compile error

    lu yuenjune
    Dear Sir: We are working on DM365 platform and use CCS to compile our project. The version of CCS is 3.3.38.2 and cgt is 4.1.4. In order to use latest codec, we need to install newer cgt to compile codec source code. So, we install new version of cgt(V4.6.2). We can compile codec source...
    on Aug 18, 2011

  • Forum Post: Re: sensorless control of pmsm motor

    SUNEEL KUMAR KOMMURI73899
    Hi, I already defined IQ math header file "IQmath.h", but it shows the same error. Regards, Suneel
    on Sep 8, 2011

  • Forum Post: How to avoid some PAINFULLY SLOW compile times

    John Senko
    I have been doing high-performance optimization of complex algorithms for decades. I had not used CCS for more than a few years. I ALWAYS create a workstation or Windows emulation of any embedded code that I am working on, because when I start with working code, it is SOO muc faster and easier to modify...
    on Oct 27, 2011

  • Forum Post: If-then instruction for TMS470 assembler

    roberta
    I am changing from using Code Red to COde Composer for our LM3S9B96 project. We use the widgetmutexget function to implement semaphores which uses in-line assembly and worked fine with the GCC toolchain. __asm(" mov r1, #1\n" " ldrexb r2, [r0]\n" " cmp r2, #0\n" "...
    on Nov 18, 2011

  • Forum Post: Compiler not saving registered variables

    Gary Brown
    Sorry, this is probably a really stupid noob question. I'm just spinning up a lm3s1b21 design and working on an I2C driver. This is spaghetti code using the Stellarisware library (no OS). What Ive found is that some local variables are being stored in processor registers. This is an automatic...
    on May 19, 2011

  • Forum Post: Re: C55x Legacy Compilers

    Professor Kidney
    Thanks for the replies. The compiler is needed to support a rather ancient product we have inherited - built with v2.56 according to the build records. I suspected it was no longer supported. Guess its time to take the plunge and upgrade to something a bit newer.
    on Dec 14, 2011

  • Forum Post: CCS v5.1 exponent issue (x ^ 0 = x??)

    William Perdikakis
    Hello, I am using CCS Version: 5.1.0.09000 with compiler TI v 6.0.2 on a 28035 controlCard . If I step through the line: tmp = 2 ^0; tmp is set to 2 instead of 1 . This is 100% repeatable.
    on Feb 14, 2012

  • Forum Post: Whether Intrinsics functions (__byte() and __xor()) are for fast execution and better optimized code or just for convenience.

    Vishnu Beema
    Hi, I am using TMS320F28335 DSP controller. With respect to Intrinsics I am going through Optimizing C_C++ Compiler.pdf (spru514c) and below links. I have few queries on __byte(), __xor(). http://www.ti.com/lit/an/spraa75/spraa75.pdf http://processors.wiki.ti.com/index.php/Byte_Accesses_with_the_C28x_CPU...
    on Feb 23, 2012

  • Forum Post: CCS v5.1 Segmentation Fault during compile

    AVM
    I've recently downloaded and installed CCS v5.1 and it's been giving me some issues. As background, this is a previous problem that I had that appeard to be caused by a bad installation: Can't run GRACE on new CCS 5.1 install I'm running under Windows XP Pro SP3. I got those issues resolved...
    on Mar 3, 2012

  • Forum Post: Bug in c55x compiler where it computes address in Program Space instead of Data Space

    Craig Leeds
    /* ** This program shows a bug in the c55x compiler. ** It shows that setting an address of a structure in a defined section ** to a pointer defined in the same section will use the Program Space ** address instead of the Data Space address. ** In other words, in those cases the stored address is multiplied...
    on Mar 9, 2012

  • Forum Post: Passing pointers to functions in static libraries

    Nino Paldan
    Hello all, We are in the middle of modularization of our code base. We are currently moving code into static libraries and have encountered some issues calling functions when passing pointers to them. We are using Code Composer v4/ C2000 with TMS320F28x DSP family . Below are some examples with the...
    on Mar 21, 2012

  • Forum Post: How to make executable dynamic?

    Mohamed Sohal
    Hi all, I want "--relocatable --dynamic --ram_model -o" on my makefile.. but when i build I get only "--relocatable --ram_model -o". How to get my executable dynamic? CCS v5.0.23 CGT 7.2.1 Regards, Sohal
    on Mar 27, 2012

  • Forum Post: Re: How to profile

    Jens Biltoft
    Hi I have more or less the same problem with profiling option. I have added the --gen_profile option to the compiler, and I am able to compile and run the code, but I do not get any *.pdat file. FYI I do not use a CCS project, instead I invoke the compiler from a command line If I call the...
    on Apr 12, 2012

  • Forum Post: .cinit initialization timing and time to come to main() function

    Vishnu Beema
    Hello, I am using TMS320F28335 controller. I want to analyze the time taken from powerup to the point control coming to main() function. I need to analyze few points. By using GPIO pin can i measure the time for .cinit copying from Flash. Is there any alternative method to measure the time to...
    on Mar 15, 2012

  • Forum Post: How to control order of global variables in RAM?

    Mark Flynn
    I'd like to store some global variables in RAM in a contiguous order. For instance if I define: Uint16 a=0, b=0, c=0; I want to have the memory map reflect that the variables are store in RAM contiguously. My RAM starts at 0xC000 so I want a at 0xC000, b at 0xC001, and c at 0xC002). However...
    on Apr 18, 2012

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