Jump to content



Photo
- - - - -

Classpad Dma


  • Please log in to reply
1 reply to this topic

#1 BiTwhise

BiTwhise

    Casio Overgod

  • [Legends]
  • PipPipPipPipPipPipPip
  • 627 posts
  • Gender:Male
  • Location:Guildford, Surry, UK
  • Interests:Programming, games, consoles, martial arts

  • Calculators:
    FX9700WE, CFX9970G, AFX2.0, Classpad 300

Posted 25 February 2008 - 03:22 AM

I just started playing with the CP again this weekend, reading the hardware reference manuals, setting up hardware timers, doing some rendering, the usual fun stuff :)

Now I'm wondering if anyone have made any use of the Classpad DMA unit.
Specifically, what kind of transfer sizes you need to see benefits, any potential pitfalls regards to cache coherency and such, and if it even works for memory to memory transfers (from what I gather in the docs, this should be possible).


Cheers,
Christian

#2 ECE

ECE

    Casio Freak

  • Members
  • PipPipPipPip
  • 152 posts
  • Gender:Not Telling
  • Location:USA

  • Calculators:
    ClassPad300 Plus o.s3.06.1000
    fx-CG20 o.s1.04
    fx9860GII SD o.s2.00
    fx9860G Slim o.s1.10
    fx9860GSD o.s2.01 (GII hacked)
    Algebra FX2.0 Plus
    CFX9850GBplus
    fx5800p
    fx3650p
    fx570ES Plus
    EA-200 Casio Data Analyzer

Posted 23 March 2008 - 07:29 PM

Hello BiTwhise,

Are you sure that ClassPad uses a DMA controller to transfer data ?

Please inform me where can I find the documents you mentioned, that describe the hardware of the ClassPad.

Regards




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users