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关于DM642上使用TI-fastRTS库计算错误的问题!



硬件平台:DM642,使用XDS560PLUS进行仿真

采用目标板:自行设计,程序算法效果能够实现

软件环境:CCS3.3

出现问题:  cmd文件中在 rts6400.lib前面加入的 -l lib\fastrts64x.lib的,头文件也包括了#include <fastrts62x64x.h>

                       调用函数  _mpyf ,在DEBUG下进行仿真,并且Opt level 为None,但是计算结果总显示0.0,输入参数都为float没错;

                      请问这是什么问题啊!!