Re: MSP430 in-circuit firmware upgrade question

From: Henry Kiefer (otc_at_gmx.net)
Date: 11/06/04

  • Next message: terry: "Re: Keypad data reception" 
    Date: Sat, 6 Nov 2004 02:00:12 +0100

    Weiyang Zhou schrieb in Nachricht ...
    >I am trying to implement the in-circuit firmware upgrade feature on a
    >MSP430148 based system. The firmware consists of a boot loader and
    >application. boot loader will be able to receive new application firmware
    >over UART and program it into the flash to replace the older application.
    >
    >I have a few questions related to this:
    >1. Can the boot loader program flash while executing in flash? Or does it
    >have to be copied to RAM first?
    >2. Both of my boot loader and application need to communicate over UART,
    how
    >do I change the interrupt handler at run time? I am using IAR's tool. Its
    >"interrupt" keyword sets up interrupt vector at compile time.
    >3. In IAR's Embedded Workbench, I will have two projects for boot loader
    and
    >application. If I use the linker script to place boot loader and
    application
    >into different location, can I use C-Spy to download them into flash?
    >4. When build the application firmware for field upgrade, what link output
    >format should I choose that's good for download and flash programming?
    >5. When the system goes to production, how do I get a complete flash image
    >so we can program it on MSP430 chips before populate it on the board?
    I think you should work on it and not ask school questions. The people are
    very busy here!

    Sorry -
    Henry 

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  • Next message: terry: "Re: Keypad data reception"

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