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  • 双口ram读数据的速度太慢

    系统结构与功能：

           lpc3131外接8k*8双口ram与8G Flash，从双口ram读取数据（来自FPGA），并存至Flash中。

    问题：

           丢数据，系统速度远低于ram的读速与Flash的写速度。

      双口ram读数据直接采用指针，如下：

            for(i=0;i<tmp;i++)…

  • From “Which Cortex-M processor” to “Which C compiler”

    In my presentation at ARM TechCon 2013 last week "ARM Cortex-M for Beginners", someone asked a question of “Is there any advice for getting the best performance? Which C compiler to use?

    This is a very interesting question. One page of…