AnsweredAssumed Answered

memcpy function caused underrun and made LCD noise of i.MX25PDK

Question asked by torus1000 on Jul 21, 2015
Latest reply on Jul 21, 2015 by Yuri Muhin

Hi chip experts,


It seems large size of memcpy() argument 'n' cause LCD noise such as 3kB.
In fact without memcpy() didn't observe LCD noise. I assumed both buf1 and buf2 were DDR3.

#include <string.h>

  void *memcpy(void *buf1, const void *buf2, size_t n);

Is there any recommended max copy size for memcpy() for i.MX25PDK?