Looking for signal processing library or examples using the SPE instructions.

[caryo_brien]

I am looking for information about using the SPE (Signal Processing Extensions) instructions in

a P1022 processor.  The compiler (gcc) in Qoriq Yocto 1.6 seems capable of generating the

instructions, and they do work, but beyond the SPEPIM reference manual I haven't been able

to find much other support.  Are there libraries available?  We are mostly interested in audio

processing, i.e. seeing if we can handle some of the tasks currently done by dedicated DSP

chips.

Has anyone had much luck doing this?

Thanks in Advance

Cary O'Brien

[yipingwang · Accepted solution]

Hello Cary O'Brien,

I find some information from our internal data base, hope the following would be helpful.

PowerQUICC III Software Library replacing some libc functions by utilizing the SPE

http://cache.freescale.com/files/netcomm/software/libraries/libcfsl_e500.zip

AN3733 : Improving DSP Performance Using Efficient SPE Coding

http://cache.freescale.com/files/microcontrollers/doc/app_note/AN3733.pdf

MPC55xx SPE DSP Library 1

http://cache.freescale.com/files/microcontrollers/software/app_software/code_examples/MPC55xx_SPE_DS...

MPC55xx SPE DSP Library 2 ()

http://cache.freescale.com/files/microcontrollers/software/app_software/code_examples/MPC55xx_SPE_DS...

Have a great day,
Yiping

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