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  3. Atmega328p and flash memory

Atmega328p and flash memory

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  • alexsh1A Offline
    alexsh1A Offline
    alexsh1
    wrote on last edited by
    #1

    Hello all,

    I'm trying to combine several sketches and unfortunately with signing i am running out of flash memory. The code cannot be optimised further.
    I do like atmega328p and wonder if there is any chance to use a serial SPI flash (the library is here https://github.com/LowPowerLab/SPIFlash) to accommodate a larger sketch size? Or my only option is to switch to atmega1284?

    Thanks
    Alex

    Y 1 Reply Last reply
    0
    • alexsh1A alexsh1

      Hello all,

      I'm trying to combine several sketches and unfortunately with signing i am running out of flash memory. The code cannot be optimised further.
      I do like atmega328p and wonder if there is any chance to use a serial SPI flash (the library is here https://github.com/LowPowerLab/SPIFlash) to accommodate a larger sketch size? Or my only option is to switch to atmega1284?

      Thanks
      Alex

      Y Offline
      Y Offline
      Yveaux
      Mod
      wrote on last edited by
      #2

      @alexsh1 atmega328 does not support running code from external flash, so you are out of luck. You could also consider switching to a different cpu architecture (esp, atsamd, stm32,... ) with more flash.

      http://yveaux.blogspot.nl

      alexsh1A 1 Reply Last reply
      1
      • Y Yveaux

        @alexsh1 atmega328 does not support running code from external flash, so you are out of luck. You could also consider switching to a different cpu architecture (esp, atsamd, stm32,... ) with more flash.

        alexsh1A Offline
        alexsh1A Offline
        alexsh1
        wrote on last edited by
        #3

        @Yveaux Thanks. This is a battery run multisensor so ESP8266 is not an option. ESP32 is an overkill. I'm not that much familiar with other platforms so I suppose my only option is atmega1284 :((

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