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TMS320F280049: 关于fpu库 IIR_f32_setDelayLinePtr

Part Number: TMS320F280049

IIR_f32_setDelayLinePtr 此函数设置对应的缓冲区 大小设置的依据?, 填写的初始值 有什么意义? 与matlab计算中的filter(b,a,x,zi)函数的 zi是否有 对应关系?如果有 对应关系是什么样的?