code execution from external Flash

virtualfight · ‎2009-08-04

Posted on August 04, 2009 at 10:15

stm322 · ‎2011-05-17

Posted on May 17, 2011 at 12:45

Sorry for the late reply.

I just made a while(1) setting and resetting the PF6 pin.

One is done in internal flash using Raisonance toolchain.

One is done in external NOR flash using Keil toolchain.

It s quite quicker in internal flash.

I should do another test runing in external RAM. But I ll redo all test using the same toolchain. Shouldn't make a lot of difference but...

I ll put the result in this post.

jj · ‎2011-05-17

Posted on May 17, 2011 at 12:45

Re: Test to contrast internal/external code speed execution:

Like your simple while() - suggest that you xor PF6. (monitor pin)

Please try to include a variety of instructions as a ''too short'' test will magnify any loop overheads.

Still have not received our EVAL-E - will perform these tests with IAR and report...