• State TI Thinks Resolved
  • Locked Locked
  • Replies 4 replies
  • Answers 1 answer
  • Subscribers 80 subscribers
  • Views 1717 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

BSL MSP430F5x vs MSP432

DJ-NG
Genius 9355 points

Hi champs,

customer still use MSP430F5x series and use BSL capability to update FW in system by a MPU host (via UART).

Now they will migrate from MSP430Fxx to MSP432P4xx and ask for differences (HW, sequence) in using BSL over UART.

Do we have a document, that explains ?

  • 0
    TI__Guru 64571 points

    Hi DJ-NG,
    I am not aware of a specific application note that compares the two or provides a migration path. Here are some documents specific to the MSP432.  The first two include tables showing the differences between the products.




    I will continue to look for specific guidance.

    Chris

  • 0 in reply to Chris Sterzik
    TI__Genius 9355 points
    Hi,

    Now customer wants to use MSP432, but way of FW update in his multi-processor environment has to be more or less compatible to existing MSP430 solution.

    He expects:
    - 2 pins connected to his host MCU (RST, + dedicated pin) to asynchronously start MSP432 boot strap loader (reset sequence may be ok and then start BSL ) druing running application + UART connection for data transfer

    - this Bootstrap behaviour (which pin, polarity, UART/IIC....) has to be pre-programmed in non volatile memory once (e.g. during production)

    - Initial programming of an empty device can be done via JTAG in production

    I went through actual documents you highlighted in post before, but I am not sure I understood it right.

    - Pls give a statement, if customer can perform a FW update in this manner ?
    - Do we have a running example ?
    - Anything else to mention ?
  • 0 in reply to DJ-NG
    TI__Guru 64571 points
    Yes. The Hardware invocation supports a GPIO signal on Ports 0 to 3 on bits 0 to 7( www.ti.com/.../msp432p401r.pdf ). I do not have a specific example but in the SLAU690 application you can see how to configure the BSL via the Flash Mailbox which can be programmed during production (www.ti.com/.../slau690d.pdf ).

    Please let me know if you have further questions.
    Chris
  • 0 in reply to Chris Sterzik
    Prodigy 20 points

    I am trying to do exactly the same thing. Using the MSP432, I want to have the firmware updated by the UART interface . What I am unclear about is the toggling of the RST signal. The document say the “user must issue a reboot reset”. Can the device jump through reset and invoke the same Bootstrap loader, or does the RST have to be physically toggled for it to enter the bootstrap loader? I am using P1.1 rather than P1.0 as shown below.

**Attention** This is a public forum