help, bootloader problems !

jy — Mon, 01 Nov 2010 08:11:48 GMT

Hi sir,

how can i place the Start08.c in to bootloader ?

_Copy *toCopyDownBeg 0xEA9B << why that statment be inside the rom1 ?

=================MAP ============================

Entry point: 0xF87B (_Startup)
_startupData is allocated at 0xF884 and uses 6 Bytes
extern struct _tagStartup {
unsigned nofZeroOut     1
_Range   pZeroOut       0x100     513
_Copy    *toCopyDownBeg 0xEA9B
} _startupData;

==========================prm ========================

/* This is a linker parameter file for the mc9s08jm8 */

NAMES END /* CodeWarrior will pass all the needed files to the linker by command line. But here you may add your own files too. */

SEGMENTS /* Here all RAM/ROM areas of the device are listed. Used in PLACEMENT below. */
    Z_RAM                    = READ_WRITE   0x00B0 TO 0x00FF;
    RAM                      = READ_WRITE   0x0100 TO 0x04AF;
    RAM1                     = READ_WRITE   0x1860 TO 0x195F;
    ROM                      = READ_ONLY    0xE000 TO 0xF7FF;
    Bootloader               = READ_ONLY    0xF800 TO 0xFFAF;
    //Bootloader               = READ_ONLY    0xFA00 TO 0xFFAF;
     //Bootloader               = READ_ONLY    0xF800 TO 0xFFAD;
    ROM1                     = READ_ONLY    0xFFC0 TO 0xFFC3;
/* INTVECTS                 = READ_ONLY    0xFFC4 TO 0xFFFF; Reserved for Interrupt Vectors */
END

PLACEMENT /* Here all predefined and user segments are placed into the SEGMENTS defined above. */
    DEFAULT_RAM                         /* non-zero page variables */
                                        INTO RAM,RAM1;

//    _PRESTART,                          /* startup code */
//    STARTUP,                            /* startup data structures */
    ROM_VAR,                            /* constant variables */
    STRINGS,                            /* string literals */
    VIRTUAL_TABLE_SEGMENT,              /* C++ virtual table segment */
//    DEFAULT_ROM
    DEFAULT_ROM,
    COPY                                /* copy down information: how to initialize variables */
                                        INTO ROM; /* ,ROM1: To use "ROM1" as well, pass the option -OnB=b to the compiler */

    _PRESTART,
    STARTUP,
    Bootloader_ROM                     INTO Bootloader;
    _DATA_ZEROPAGE,                     /* zero page variables */
    MY_ZEROPAGE                         INTO Z_RAM;
END

Re: help, bootloader problems !

jy — Mon, 01 Nov 2010 09:01:43 GMT

why i want put the start08.c into bootlaoder.rom ? because when erase the rom1( E000~F7FF), Device work error, can be active again .

topic help, bootloader problems ! in CodeWarrior for MCU

help, bootloader problems !

Re: help, bootloader problems !