• State Accepted Answer
  • +1 person also asked this people also asked this
  • Locked Locked
  • Replies 9 replies
  • Subscribers 349 subscribers
  • Views 9099 views
  • Users 0 members are here
Options
Related
How was your experience today?
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

ARM9 replacing Cortex M3

Michael von Hauff
Parents
  • 0
    Note: This was originally posted on 7th January 2009 at http://forums.arm.com

    RAM size and Flash size are not factors (even the smallest amounts available are enough)

    I am aware that the DMA does not run as fast, which is why the Cortex M3 is not sufficient. The fastest available cortex m3 is 72Mhz, which gives a DMA transfer speed of 18Mbytes/s. A 100MHz version is going to be available soon but I am not holding my breathe as it would barely fit the requirements (maybe not even).

    I am interfacing to devices capable of 40MByte/s transfer speeds. The peripheral is not the current limitation. The DMA is.

    All I care about!:
    Standby Power
    Wake time
    DMA transfer speed

    Wakeup time is the hardest thing to find out. But I am hoping someone has had some experience with an ARM9 varient and will share that knowledge with me.

    Thanks,

    Mike.
Reply
  • 0
    Note: This was originally posted on 7th January 2009 at http://forums.arm.com

    RAM size and Flash size are not factors (even the smallest amounts available are enough)

    I am aware that the DMA does not run as fast, which is why the Cortex M3 is not sufficient. The fastest available cortex m3 is 72Mhz, which gives a DMA transfer speed of 18Mbytes/s. A 100MHz version is going to be available soon but I am not holding my breathe as it would barely fit the requirements (maybe not even).

    I am interfacing to devices capable of 40MByte/s transfer speeds. The peripheral is not the current limitation. The DMA is.

    All I care about!:
    Standby Power
    Wake time
    DMA transfer speed

    Wakeup time is the hardest thing to find out. But I am hoping someone has had some experience with an ARM9 varient and will share that knowledge with me.

    Thanks,

    Mike.
Children
No data