FLASH and estimated RAM Usage

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rei-vilo edited this page Apr 10, 2013 · 8 revisions

Procedure

To know the FLASH and an estimate of the RAM used,

Find the location of the size utility

  /Applications/Energia.app/Contents/Resources/Java/hardware/tools/msp430/bin/msp430-size

Compile a sketch and find the location of the elf file –see attached screen-shots on how to find the location on the console

  /var/folders/kd/70m4ltxn14l086ddy860ff3c0000gn/T/build7439050874009286986.tmp/Blink.cpp.elf`

Open a terminal window and type the command

   $/Applications/Energia.app/Contents/Resources/Java/hardware/tools/msp430/bin/msp430-size /var/folders/kd/70m4ltxn14l086ddy860ff3c0000gn/T/build7439050874009286986.tmp/Blink.cpp.elf
   text	   data	    bss	    dec	    hex	filename
    590	      0	      6	    596	    254/var/folders/kd/70m4ltxn14l086ddy860ff3c0000gn/T/build7439050874009286986.tmp/Blink.cpp.elf

Do the maths

  text + data = FLASH
  bss + data = estimated SRAM

Please note this is only an estimate, but if the estimated SRAM is close to the maximum, you're going to experience some problems.

Maximum FLASH and RAM

Remember

MSP430G2452 = 8 KB of FLASH and 256 bytes of RAM
MSP430G2553 = 16 KB of FLASH and 512 bytes of RAM

Finding the Location of the elf file

To find the location of the elf file

Select Show verbose output during compilation in Preferences

Copy the full path of the elf file from the console