SK-TDA4VM: Use of C7x library for logarithmic calculation

MadhuBala E

Part Number: SK-TDA4VM
Other Parts Discussed in Thread: MATHLIB

Tool/software:

I am using the SDK version "ti-processor-sdk-rtos-j721e-evm-09_00_01_01\pdk_jacinto_09_00_01_04" where I have created a simple application to run in C7x DSP core which will perform some operations like log2(x) , log10(x) on a big chunk of unsigned 32 bit data in L2 Ram memory

The overall goal of the work is to make the simple application run more effieciently in the C7x core to replicate it for our requirement , so Is there any dsplib , mathlib or any intrinsic that can be used to implement this logarthmic operation

Thanks,

Madhu

over 2 years ago

+1 Asha Bhandarkar over 2 years ago

TI__Genius 10170 points

Hi Madhu,

We release a C7x optimized MATHLIB library in ti-processor-sdk-rtos-j721e-evm-09_02_00_05 referred to as mathlib_09_02_00_04 within the SDK. This is a standalone baremetal library that you could link to in your application.

There is log2 and log10 support (details in the User Guide), however, the expected data type is 32-bit floating point. If needed, the source code for this is available and can be modified.

Best,

Asha

+1 MadhuBala E over 2 years ago in reply to Asha Bhandarkar

Intellectual 325 points

Hi Asha

Thanks for the quick reply, Let me check with that satisfies our requirement.

Regards,

Madhu

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SK-TDA4VM: Use of C7x library for logarithmic calculation