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MSP430F5524: Where can I get a copy of the boot ROM for the MSP430F55xx

Part Number: MSP430F5524
Other Parts Discussed in Thread: MSP-FET

My project is complete with a functioning BSL and USB. However, I have some issues with power-up that are recoverable, but I would rather that my customers never see. To determine if these conditions are avoidable, I need to verify the decision making process of the boot-ROM as it pertains to the BSL. Thank you in advance for your help.

  • Hi Rudy,

    Refer to the abstract in SLAA450F - Creating a custom Flash-based BSL

  • Thank you Dennis. Referring to that document, Fig 1 on page 4 shows a process starting with "Device Power up" and ending with a check in r12 from the "BSL protect function. I can get this process to succeed and I can get it to fail without changing the code. This tells me that the hard coded silicon ROM is doing more than this diagram displays.

    Is there more detailed information on the hard coded silicon ROM that executes on every power up cycle?

    I have recommended the product to be released for production, but my boss won't release it until I can explain why the product fails in some circumstances.

  • Hi Rudy,

    Ok, understand.

    There is nothing formally documented.  It's up to the user to read through the source code, but I can help with this.

    Are you at liberty to explain what the issues you are seeing at power up?

  • Dennis,

    Thank you for respectful reply. This issue is a simple and stupid mistake on my part. I needed a fresh mind to walk me thru troubleshooting. The original cause was not removing the MSP-FET from the system prior to cycling power. This led to a cascade of failures that overwhelmed me. Interestingly enough, I've improved the physical circuit due to this. My product is now fully functional and soon to be released. Lastly, my compliments to your silicon design guys. I've been trying to get back to TI since you discontinued the TMS7000 20 yrs ago. I love the TI architecture, and no other processor comes close.