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6455测试标准例子stairstep问题,计算cpu_load



用DSP/BIOS自带的6455标准stairstep例子,一字未改

         1) 未设置PLL的情况下,cpu_load输出不了图像,但是cpu load data和printf logs都有输出,不过速度很慢。

         2)将PLL按实际情况设置为1G后,以上输出都无。

望高人拉一把。。。。。。