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DSP2808的flash中程序执行速度



你好,在《Running an Application from Internal Flash Memory on the TMS320F28xxx DSP》中提到:

the on-chip flash memory on these devices provides effective code execution performance that is slightly less: roughly 85 – 90 MIPS on 100 MHz devices, 

请问是否有针对F280X系列的同类手册,2808的程序在flash中执行速度与RAM中相差多少?

如果我想对两种介质下的程序运行周期进行测量,有没有什么比较精准的方法?

  • fan Linlin 说:

    你好,在《Running an Application from Internal Flash Memory on the TMS320F28xxx DSP》中提到:

    the on-chip flash memory on these devices provides effective code execution performance that is slightly less: roughly 85 – 90 MIPS on 100 MHz devices, 

    请问是否有针对F280X系列的同类手册,2808的程序在flash中执行速度与RAM中相差多少?

    如果我想对两种介质下的程序运行周期进行测量,有没有什么比较精准的方法?

    flash的读写周期需要初始化,一般有最低限制,flash中速度不够,一般系统初始化时将关键代码搬移到内部ram运行。

    可以在测试代码段前后加gpio的置位复位操作,使用示波器测量运行时间。