About DSPLIB FFT and FFT coprocessor on EVMK2L

2. I wonder whether the FFT coprocessor supports radix 2, 3 and 5 DFT or not.

The FFT engine is a block based architecture meaning it computes one full radix stage at a time. The FFT engine can compute two radix-4, two radix-3, four radix-2 or one radix-5 butterflies every clock cycle. Please refer FFTC user guide for more information,

Thank you.

3. On the MCSDK wiki page, it says "Starting from MCSDK 3.0.4, the release includes an MCSDK native linux package that can be installed on the target platform."

For MCSDK 3.0.4  release it was:

http://software-dl.ti.com/sdoemb/sdoemb_public_sw/mcsdk/3_00_04_18/exports/mcsdk_3_00_04_18_native_setuplinux.bin

With the later releases: For example the latest (MCSDK 3.1.4. ) the url is as follows.

Note: We changed the main installer to also cover the native target use case. So you should be able to use the following link with the same instruction on the target as well.

http://software-dl.ti.com/sdoemb/sdoemb_public_sw/mcsdk/latest/exports/mcsdk_3_01_04_07_setuplinux.bin

Thank you.

 1. I did some research and it seems that DSPLIB FFT only supports radix-2 FFT. Is this right?

No. It supports Radix-2, Radix-4 and mixed Radix-4/Radix-2.

Thank you.