Using the memory optimized libraries¶

During evaluation of the library it is recommended to use the Full Version of the library ([Library_INSTALL_DIR]/lib/USS_optimized/). The full version of the library allows users to evaluated different algorithms performance. Once users have determined the optimal algorithm option for their application. Users can take advantage of the memory optimized library which are available under [Library_INSTALL_DIR]/lib/USS_optimized/.

$Mem\_opt\_libs$

Fig. 10 Mem_opt_libs

Linking memory optimized library to template example project¶

The library template examples by default links to the full version of the library. the table below indicates the different algorithm options supported for AToF, DToF and VFR calculations by each library.

Library Option	USS_Alg_AbsToF_Calculation_Option_lobe	USS_Alg_AbsToF_Calculation_Option_hilbert	USS_Alg_AbsToF_Calculation_Option_lobeWide	USS_Alg_AbsToF_Calculation_Option_hilbertWide	USS_Alg_dToF_Calculation_Option_estimate	USS_Alg_dToF_Calculation_Option_water (Obsolete)	USS_Alg_volume_flow_Calculation_Option_water (Obsolete)	USS_Alg_volume_flow_Calculation_Option_generic
Full Version	✔	✔	✔	✔	✔	✔	✔	✔
Lobe	✔				✔		✔
Hilbert		✔			✔		✔
Lobe Wide			✔		✔			✔
Hilbert Wide				✔	✔			✔
Lobe wide and Hilbert Wide			✔	✔	✔			✔

Code Composer Studio¶

To use a memory optimized library

After importing the library template example, go to <LIB_INSTALL_DIR>/lib/USS_optimized/*/CCS and select the appropriate optimized library.

$CCS\_optimized\_libs$

Fig. 11 CCS_optimized_libs

Drag and drop the optimized USS_SW_CCS.a into CCS project directory ussSWLib/lib

$CCS\_optimized\_libs\_drag\_drop$

Fig. 12 CCS_optimized_libs_drag_drop

Select Link to files and make link relative to PROJECT_LOC

$CCS\_optimized\_libs\_link$

Fig. 13 CCS_optimized_libs_link

Click on Overwrite

$CCS\_optimized\_libs\_overwrite$

Fig. 14 CCS_optimized_libs_overwrite

Rebuild the project

$CCS\_optimized\_libs\_rebuild$

Fig. 15 CCS_optimized_libs_rebuild

IAR¶

To use a memory optimized library

After importing the library template example, go to <LIB_INSTALL_DIR>/lib/USS_optimized/*/IAR and select the appropriate optimized library.

$IAR\_optimized\_libs$

Fig. 16 IAR_optimized_libs

Remove existing USS_SW_IAR_small_code_large_data.lib

$IAR\_optimized\_libs\_remove$

Fig. 17 IAR_optimized_libs_remove

Drag and drop the appropriate *.lib file base on project configuration to ussSWLib

$IAR\_optimized\_libs\_drag$

Fig. 18 IAR_optimized_libs_drag

To determine the correct code and data model go to the project properties window and click on General Options

$IAR\_optimized\_libs\_code\_model$

Fig. 19 IAR_optimized_libs_code_model

Rebuild project

$IAR\_optimized\_libs\_code\_rebuild$

Fig. 20 IAR_optimized_libs_code_rebuild

Memory footprint comparison between optimized libraries¶

Code Composer Studio¶

Project Name	Lib Configuration	FRAM (Bytes)	LEA RAM (Bytes)	RAM (Bytes)
FR6043_USSSWLib_template_example	Full version	49337	4656	774
	Lobe	39941	4656	760
	Hilbert	38663	4656	756
	LobeWideandHilbWide	43009	4656	764
	LobeWide	41531	4656	736
	HilbWide	40581	4656	764
FR6047_USSSWLib_template_example	Full version	39237	3696	764
	Lobe	29391	3696	772
	Hilbert	28113	3696	768
	LobeWideandHilbWide	32413	3696	776
	LobeWide	30935	3696	748
	HilbWide	29535	3696	776

IAR¶

Project Name	Lib Configuration	FRAM (Bytes)	LEA RAM (Bytes)	RAM (Bytes)
FR6043_USSSWLib_template_example	Full version	43084	4656	784
	Lobe	35038	4656	770
	Hilbert	33826	4656	766
	LobeWideandHilbWide	36288	4656	774
	LobeWide	35044	4656	746
	HilbWide	34328	4656	774
FR6047_USSSWLib_template_example	Full version	32516	3696	432
	Lobe	23960	3696	418
	Hilbert	22768	3696	414
	LobeWideandHilbWide	25662	3696	422
	LobeWide	24418	3696	394
	HilbWide	23270	3696	422