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How to build this Viterbi example?

Robert W
Mastermind 7100 points

Hi,

There are two threads discussing Viterbi example SPRA776A. 

http://e2e.ti.com/support/dsp/tms320c5000_power-efficient_dsps/f/109/t/142759.aspx

http://e2e.ti.com/support/dsp/tms320c5000_power-efficient_dsps/f/109/t/104625.aspx

It seems that it CAN build and run. Unfortunately, my build generates some severe warnings. I am using CCS v5. Could you tell me what is wrong with the project?


**** Build of configuration Debug for project viterbi_C55 ****

C:\ti\ccsv5\utils\bin\gmake -k all
'Building file: J:/C55_Viterbi/Viterbi_t.c'
'Invoking: C5500 Compiler'
"C:/ti/ccsv5/tools/compiler/c5500/bin/cl55" --memory_model=small -g --include_path="C:/ti/ccsv5/tools/compiler/c5500/include" --include_path="C:/ti/xdais_7_21_01_07/packages/ti/xdais" --include_path="C:/CCSTUD~1.1/C5500/csl/include" --define="_DEBUG" --quiet --display_error_number --ptrdiff_size=16 --obj_directory="C:/temp_XP/C55_Viterbi/viterbi_C55/Debug" --preproc_with_compile --preproc_dependency="Viterbi_t.pp" "J:/C55_Viterbi/Viterbi_t.c"
'Finished building: J:/C55_Viterbi/Viterbi_t.c'
' '
'Building file: J:/C55_Viterbi/viterbi_dec.asm'
'Invoking: C5500 Compiler'
"C:/ti/ccsv5/tools/compiler/c5500/bin/cl55" --memory_model=small -g --include_path="C:/ti/ccsv5/tools/compiler/c5500/include" --include_path="C:/ti/xdais_7_21_01_07/packages/ti/xdais" --include_path="C:/CCSTUD~1.1/C5500/csl/include" --define="_DEBUG" --quiet --display_error_number --ptrdiff_size=16 --obj_directory="C:/temp_XP/C55_Viterbi/viterbi_C55/Debug" --preproc_with_compile --preproc_dependency="viterbi_dec.pp" "J:/C55_Viterbi/viterbi_dec.asm"
"J:\C55_Viterbi\viterbi_dec.asm", REMARK at line 118: [R5601] MMR writes to
ST0 and ST2 are
not pipeline
protected
against
interrupts (see
the C55x
silicon
exceptions
errata;
Advisory
CPU_75)
MOV #0, mmap(ST0_55) ;All fields cleared (OVx, C, TCx).

.........

  • 0
    Mastermind 7100 points

    0647.55x.zip

    Hi,

    There is a definition in the attached .cmd file:

    -stack 0x200

    On the other hand, there is a stack size option in the project property:

    The first stack option (in .cmd file) seems for system stack, but there is no DSP/BIOS content in the project.

    The second stack option is useful or not?

    Thanks.

  • 0 in reply to Robert W
    Mastermind 7100 points

    Hi,

    I notice that there are two exceptions in the .asm file. The two lines (118, 155) have the same type as shown in the picture. Why are there such exceptions? 

    I do not see any selection requirement. SPRA776 only says TMS320C55x. 

    The project property setting is:

    I am especially new to C55. Do you see anything wrong in the above settings, such as endianness, lib etc.? 

    Thanks.