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TMS320F28069 On-Chip RAM Data Storage Capacity

78Sys
Expert 1540 points

The data sheet states that there is 50k of on-chip 16-bit SARAM for this part.

Can this be taken to mean that I can store up to (about) 50k of unsigned int variables or 25k of  double variables or 12.5k of long double variables either single variables or arrays (not counting array overhead) ?

  • 0
    TI__Guru 60865 points

    Yeah, that looks right.  

    Do be careful because we sometimes quote bytes (8-bit) and sometimes words (16-bit); It looks like the 50k is words.  

    Be aware that you may want to run critical code sections from RAM instead of FLASH, which may compete with variable storage.  Also the 50k words may not all be contiguous (consult the memory map in the datasheet), so you probably will not be able to have something like a single array of 16-bit integers that has size of 50k.