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ROM & flash..

Aamir Ali
Expert 2525 points
Other Parts Discussed in Thread: MSP430G2553

What is diff b/w rom & flash. I read rom based BSl & flash based bsl.

I thought rom is area where code is stored & rom can be type of flash memory.

Is there any example code of BSl for msp430g2553

  • 0
    Guru 58965 points

    Usually, ROM means Read-Only-Memory and is "Programmed" (e.g. "written") at the time the chip is fabricated. Thus the user cannot alter the contends at all.

    Again usually, Flash is one kind of erasable-programmable-read-only-memory. Like ROM, it normally can be read only. But with a special procedure, it can be erased and re-programmed by the user of the chip.

    TI use these words the usual way most of the time. But there are exceptions. For example, MSP430FR5xx has no Flash memory at all. But TI says FR5xx uses "Flash based BSL".

    TI also had examples (called DEMOBSL) for PC to communicate with their "ROM base BSL" (such as what is inside MSP430G2553). But TI "Deprecated" that example years ago. You may be able to find it hiding in slau319b.zip

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