Hello,
I ask for people who has detected some problem in programs running in External Memory (Micron DDR SDRAM). These problems are about "printf" and "malloc" functions, and the results are unexpected.
Best Regards for your answers.
Have you ever experimented some problem with External Memory?
Jul 03, 2008
3 Replies
I know little about software so my suggestions are from hardware perspective. are you sure that your DDR memory controller is functioning properly? can you pass some memory tests ?
If it's a Microblaze, Xilinx documents say the libc or stdio stuff is not re-entrant. You'll have to add your own locks if you have multiple threads writing to stdout, for example.
Thanks so much for your replies.
I have just passed multiple memories tests. every thing works fine. But i have detected something abnormal when I used multiple threads. So it seems to be a problem of re-entrant threads.
Again, my best regards
pablo
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