LPC1778 can't start from any IROM Address only 0x0

Dear All,

I use LPC1778 and try to divide internal flash memory for my handmade bootloader and firmware.
And when i set another IROM1 start address for my firmware (for example 0x1000) i see SWD Communication Failure message in window "Building Output". After that i can't debug or update my mcu. Can use only ISP.
Why changing IROM1 start address is stopping MCU?
What i have to do to run my code from any address?
P.S. When i use LPC2367 there is no these problems.
P.P.S. My version 4.53

I trying apply RAM_MODE, REMAP commands for my startup file. But doesn't work.
With best regards, Vladimir.

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  • Thank you very much!
    It's really looks better.
    I add .ini file as initialization file in debug/simulator.

    FUNC void Setup (void)
    {
     SP = _RDWORD(0x10000000); // Setup Stack Pointer
     PC = _RDWORD(0x10000004); // Setup Program Counter
     _WDWORD(0xE000ED08, 0x10000000); // Setup Vector Table Offset Register - VTOR
    }
    
    LOAD %L INCREMENTAL // load the application
    
    Setup(); // Setup for Running
    
    g, main
    
    

    And try to run my programm in simulator. But it doesn't work even in simulator...
    It's stoped in 1st instruction :

     0x00000000 0000 MOVS r0,r0
    


    Where is my mistake??? Does anyone knows?

    With best regards, Vladimir

Reply
  • Thank you very much!
    It's really looks better.
    I add .ini file as initialization file in debug/simulator.

    FUNC void Setup (void)
    {
     SP = _RDWORD(0x10000000); // Setup Stack Pointer
     PC = _RDWORD(0x10000004); // Setup Program Counter
     _WDWORD(0xE000ED08, 0x10000000); // Setup Vector Table Offset Register - VTOR
    }
    
    LOAD %L INCREMENTAL // load the application
    
    Setup(); // Setup for Running
    
    g, main
    
    

    And try to run my programm in simulator. But it doesn't work even in simulator...
    It's stoped in 1st instruction :

     0x00000000 0000 MOVS r0,r0
    


    Where is my mistake??? Does anyone knows?

    With best regards, Vladimir

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