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TMS320C6743: FIR Filter calculation time

Part Number: TMS320C6743


I will design FIR filter with TMS320C6743. But I don't know how long it will take DSP to calculate after designing a filter. That is, in how many microseconds (nanoseconds) does it transmit the signal it receives to its output? Is it related to the clock speed of the TMS320C6743 (375MHz)? Or with instruction loop rate? (3000 MIPS and 2250 MFLOPS C674x). What does this speed depend on when designing just one filter?(MAC, ALU, FPU, MIPS, MFLOPS)

  • Hello,

    The execution time of a filter depends on multiple factors:

    1. CPU clock speed. The faster the clock, the shorter the execution.

    2. Number of coefficients of the filter. The more coefficients it has, the more time it takes to execute.

    3. How you implement the filter. There are techniques to implement a filter efficiently so that less clock cycles are needed to do the computation.

    The C674x DSP Library contains various types of FIR filters. Please download it, explore and find what fits your needs.