Lernpaket PIC Programm wird in den Bootloaderbersich geladen

// Prevent application code from being written into FLASH memory space needed for

// the Bootloader firmware at addresses 0 through 3FFh.

#pragma romdata BootloaderProgramMemorySpace = 0x6 

const rom char bootloaderProgramMemorySpace[0x400 - 0x6]; 

// The routine _startup() is defined in the C18 startup code (usually c018i.c) and 

// is usually the first code to be called by a GOTO at the normal reset vector of 0.

extern void _startup(void); 

// Since the bootloader isn't going to write the normal reset vector at 0, we have 

// to generate our own remapped reset vector at the address specified in the 

// bootloader firmware.

#pragma code AppVector = 0x400 

void AppVector(void) 

{ 

    _asm GOTO _startup _endasm 

} 

// For PIC18 devices the high priority interrupt vector is normally positioned at 

// address 0008h, but the bootloader resides there. Therefore, the bootloader's 

// interrupt vector code is set up to branch to our code at 0408h.

#pragma code AppHighIntVector = 0x408

void AppHighIntVector(void)

{

    _asm GOTO high_isr _endasm                                   // branch to the high_isr() 

                                                                 // function to handle priority

                                                                 // interrupts.

} 

#pragma code AppLowIntVector = 0x418

void low_vector(void)

{ 

    _asm GOTO low_isr _endasm                                    // branch to the low_isr() 

                                                                 // function to handle low

                                                                 // priority interrupts.

} 

#pragma code                                                     // return to the default 

                                                                 // code section