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64 KB 128KB processor — Parallax Forums

64 KB 128KB processor

nicolad76nicolad76 Posts: 164
edited 2009-02-14 07:54 in General Discussion
Hello,
I was thinking to use a uP along wiht the Propeller in order to use the uP memory as external memory.
I couldn't find any uP with at least 64KB of DATA memory. Microchip has pic with 256KB but it is for instruction only.
do you know any uP I could consider?
Thanks
Ciao
Nicola

Comments

  • Erik FriesenErik Friesen Posts: 1,071
    edited 2009-02-11 12:31
    The pic24 series has 256k memory.

    Why is the data size an issue if you just want the memory?
  • nicolad76nicolad76 Posts: 164
    edited 2009-02-11 13:12
    PIC 24 has 256KB memory but it is memory I can use for the code, the variables will go to RAM which is quite small. At least this is what Iunderstood chatting on uCHIP forum.

    I want to build a very small video card. The processor just needs to have 64KB or 128KB to support 800x600 b/W resolution and it has to be able to draw lines and flush the content of the memory to the propeller.
  • LeonLeon Posts: 7,620
    edited 2009-02-11 13:47
    That 256k is flash program memory in the PIC24. It won't be much use.

    Leon

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  • TonyDTonyD Posts: 210
    edited 2009-02-12 09:43
    Check out some of the ARM7 or Cortex M3 processors from NXP, ST or Atmel.

    NXP have the LPC2106 which has 128K Flash and 64K RAM all in a 48-pin surface mount package. Check on the web and you'll find many stamp like boards with a LPC2106. Try and find an old copy of March 2005 Elektor magazine for the ARMee project which featured a LPC2106 on a stamp like board. In fact I'm sure Leon also made a design for something similar, check his web site out.

    ST have a Cortex M3 STM32F103VE which hash 512K Flash and 64K RAM, check www.Propox.com and www.bugblat.com who both offer a nice evaluation board for this ST part

    - Tony
  • hinvhinv Posts: 1,255
    edited 2009-02-14 07:54
    ST also has a part STR911FAM42x6 that has 96KB ram. I found this at digikey.com.
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