CCSTUDIO: Where can I find 55xdspx.lib?

Thierry Cachat said:

I have found https://software-dl.ti.com/libs/c55_dsplib/latest/index_FDS.html but then it is unclear to me how I can install it.

I am unfamiliar with this package so ran the exe and then extracted the installed zip file. There is a readme that has some information. It is just a package of source, CCS 3.3 examples projects, libraries, etc. This package did not come from the CCS team. I will see if I can find any device experts that can assist you further.

Thanks

ki

Thank you Ming Wei .

In the properties of my project, under "C/C++ Build",

- in "C5500 Compiler - Include Options", I have added "C:\c55_lp\c55_dsplib_3.00\include". (It seems on the previous -now crashed- computer the project also had a similar path to "${PROJECT_ROOT}/../../C55xxCSL/include").

- in "C5500 Linker - File Search Path", I have added "C:\c55_lp\c55_dsplib_3.00\lib". Likewise.

In some sense it solves the first issue, because "55xdspx.lib" is found. So I do not need to recompile it using the bat-file?

But I still have

placement fails for object ".const"

placement fails for object ".stack"

I presume it is related to the memory model?

errors encountered during linking; "<projname>.out" not built        <projname>    line 0    1785936734471    317
placement fails for object ".const", size 0xd86 (page 0).  Available ranges: DARAM        size: 0xdd00       unused: 0x49a        max hole: 0x47c .const    >  DARAM align(32) fill = 00h        <projname>    line 0    1785936734471    316
placement fails for object ".stack", size 0x2000 (page 0).  Available ranges: DARAM        size: 0xdd00       unused: 0x49a        max hole: 0x47c .stack    >  DARAM align(32) fill = 00h        <projname>    line 0    1785936734471    315

Attached is my lnkx.cmd file

lnkx.zip

Hi Thierry,

The linker errors below indicate that the memory region DARAM size is too small:

placement fails for object ".const", size 0xd86 (page 0).  Available ranges: DARAM        size: 0xdd00       unused: 0x49a        max hole: 0x47c .const    >  DARAM align(32) fill = 00h        <projname>    line 0    1785936734471    316
placement fails for object ".stack", size 0x2000 (page 0).  Available ranges: DARAM        size: 0xdd00       unused: 0x49a        max hole: 0x47c .stack    >  DARAM align(32) fill = 00h        <projname>    line 0    1785936734471    315

There only 0x49a left in DRAM, but .const needs 0xd86 and .stack needs 0x2000.

Best regards,

Ming

Hi Ming,

The problem is that neither the lnkx.cmd nor the source files (*.c, *.h) of the project have changed, and this project could compile (many times) on a previous computer. I have modified only the .cdtbuild file, because of the new installation. It is already a long story, after

 CCSTUDIO: Error loading managed make project information 

 CCSTUDIO: The Managed Make project file could not be written 

the .*project files did not change.

Hi Thierry,

There are two things may be affecting this:

1. the 55xdspx.lib version is different.

2. the profile you build is different. In general, the Debug profile is bigger than the Release profile.

Best regards,

Ming

Hi Ming,

According to the .cdtbuild, I use the same profile as on my previous PC. Additionally, I have tried to increase the optimisation level, it did not change the size so much.

I will try to recover the 55xdspx.lib files from my old PC (OS crashed, but some files could be recoverable). It will take some time.

Otherwise, do you think it is possible/meaningful to install a completely new version of the tools?

Thank you

Thierry

Hi Thierry,

If you meant install the whole CCS and C55x CGT, I do not recommend doing so, because it may create new problems, stick with what used to work is important. Another point, the latest 55xdspx.lib (rev3.0) may not work for the C5502, because it was optimized for the C55x DSP core rev 3.3 while the C5502 is using the older DSP core.

Best regards,

Ming