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Equivalent decoder standards for TCP2 and TCP3D.

Other Parts Discussed in Thread: TMS320C6455, TMS320C6670

I'm converting application code from TCP2 to TCP3D. In the TCP2 application code, to do the LTE turbo decoding, we used TCP2_STANDARD_3GPP which selects the algorithm used to calculate the tail bits for Input Configuration registers 6-11 (see TCP2_tailConfig in file csl_tcp2.c). In the TCP3D application code should I use CSL_TCP3D_CFG_TCP3_MODE_MODE_SEL_3GPP when using the TCP3D Driver functions?

  • Hi Donald,

    If you want to use LTE mode in TCP3d, you can use CSL_TCP3D_CFG_TCP3_MODE_MODE_SEL_LTE (enum value = 1) . CSL_TCP3D_CFG_TCP3_MODE_MODE_SEL_3GPP should be used for WCDMA mode. 

    Regards,

    Arun

  • Arun, 

     Will the turbo coprocessor in the C64X series be upgraded from the TCP2 to the faster TCP3d in the future. If not, how backwards compatible are the C66x to the C64X series. Right now we're using the TMS320C6455 chip for mainly the TCP2 turbo coprocessor. A little bit of other processing is also done on the processor. Will the TMS320C6670 be a suffice upgrade which would allow most of the code that is already written for the TMS320C6455 to be ported with minimal effort?