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TMS320C50是美国TI(Texas Instruments)公司TMS320系列的定点型DSP产品,其运算速度达到28.6MIPS,它所具有的单指令周期的乘法/累加指令,使得它在数字信号处理中占有相当重要的地位。无限冲激响应(Infinite Impulse Response,简记为IIR)数字滤波器是现代数字信号处理的一个重要方法,它在很多的领域得到了广泛的应用。本文根据TMS320C50芯片的硬件结构特点,充分利用片内RAM,对IIR滤波器运算的指令代码进行优化,提出了一种有效的IIR滤波器实现方案。
The TMS320C50 is a TMS320 family of fixed point DSP products from Texas Instruments that operates at 28.6 MIPS and has a single instruction cycle multiply / accumulate instruction that makes it a significant player in digital signal processing. Infinite Impulse Response (abbreviated as IIR) Digital filter is an important method of modern digital signal processing. It has been widely used in many fields. According to the hardware structure of TMS320C50 chip, this paper makes full use of on-chip RAM to optimize the instruction code of IIR filter operation and proposes an effective implementation scheme of IIR filter.