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RAM in Code memory area

Woody Wu
Note: This was originally posted on 20th June 2011 at http://forums.arm.com

Hi,

My board has 32K SRAM in the code memory area (within the first 0.5G), also has the same size of build in SRAM in data area.  My question is, what kind of data are suitable to put in CODE area?  Particularly, should I set the main stack in CODE SRAM or DATA SRAM?

Thanks in advance.
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  • Arm Employee Badge
    Note: This was originally posted on 21st June 2011 at http://forums.arm.com

    I guess you are using a NXP Cortex-M3 microcontroller? (Please be more specific on device type)

    If that is the case, to get the best performance (program execution as well as interrupt latency), the stack should be place in the SRAM in the SRAM region. This allows stack operations and program fetches to take place at the same time.
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  • Arm Employee Badge
    Note: This was originally posted on 21st June 2011 at http://forums.arm.com

    I guess you are using a NXP Cortex-M3 microcontroller? (Please be more specific on device type)

    If that is the case, to get the best performance (program execution as well as interrupt latency), the stack should be place in the SRAM in the SRAM region. This allows stack operations and program fetches to take place at the same time.
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