C28x IQMath.lib how to copy from FLASH to RAM

richard payne

I have copied the FFT.h library from FLASH to RAM (via Command Linker File), where I put .sect "ramfft" for each asm code supplied from DSP library (V101). I found it not difficult to implements.

I would like to do same thing but uncertain how to put .sect statement in IQMath.lib as it is not assembly format.

Please advise how to

(1) Copy the IQMath.lib into RAM from FLASH during bootup.

(2) Where possible, copy specific section of IQMath function and IQMath table into RAM from FLASH during bootup.Why because RAM has limited space.

(3) Is there ASM library of the IQMath?

Thank for your support

PS: I still reading SPRAAU8 and similar document.

over 11 years ago

0 Gautam Iyer over 11 years ago

Guru 192875 points

Hi Richard,

This link should be useful:

http://e2e.ti.com/support/microcontrollers/c2000/f/171/t/127220.aspx

Regards,

Gautam

0 richard payne over 11 years ago in reply to Gautam Iyer

Genius 4640 points

Thank for reply, I experimented the IQMATH FLASH to RAM and working fine in F280x device. The linker actually select object/function and put in the RAM rather than whole library, that is very good!.

How to select object/function within IQMATH.LIB to be in FLASH and to be in RAM?, is there way to do this. I have read the SPRU513G => TMS320C28x Assembly Language Tools v6.2.4 document but could not make sense of section 8.5.4.5 in relation of this task (not sure if this is right method),

Is there demo code for selection of objection/function to FLASH and to RAM?

Thanks

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C28x IQMath.lib how to copy from FLASH to RAM