need help about bootload

[joe2008]

Because my program need bootload function, NOW i am try to learn how to realize it.
I have searched something about bootload in this forum, and make a simplest bootload project using ex_bootloader.c, bootloader.c, bootloader.h and 18F452.h in CCS folder (just use example file and don't change, then i try to build, but CCS C complier always shows as below:
Executing: "C:\Program Files\PICC\Ccsc.exe" +FH "loader.c" +EXPORT +DF +LN +T +A +M +Z +Y=9 +EA
*** Error 128 "loader.c" Line 42(1,4): A #DEVICE required before this line
D:\bootload_1\loader.o ===> 1 Errors, 0 Warnings.
Halting build on first failure as requested.
BUILD FAILED: Fri Aug 29 14:56:37 2008

I am using MPlab V8.1 and ccs_pcwh_4.049, I don't know why. Thanks.

[PCM programmer]

You don't need help on a bootloader, you need help on "A #DEVICE required before this line".

See this thread. Look near the end.
http://www.ccsinfo.com/forum/viewtopic.php?t=35724

[joe2008]

very thanks.
Now the simplest bootload project i make using ex_bootloader.c, bootloader.c, bootloader.h and 18F452.h in CCS folder can be build successful.
But i am still has some question about the example file in ccs folder.

1) what's use of below part in bootload.h since we defined _bootloader in ex_bootloader.c?
#ifndef _bootloader

#if defined(__PCM__)
#build(reset=LOADER_END+1, interrupt=LOADER_END+5)
#elif defined(__PCH__)
#build(reset=LOADER_END+1, interrupt=LOADER_END+9)
#endif

#org 0, LOADER_END {}

#endif

2)i add my own header file-PSMI_Definitions.h. It just define some static variables for my application program, no add anything else, but if define more variable, the CCS complier will show:
** Error 71 "ex_bootloader.c" Line 91(0,1): Out of ROM, A segment or the program is too large main
Seg 00040-0007E, 0040 left, need 0366
Seg 00080-000FE, 0080 left, need 0366
Seg 00100-00108, 0006 left, need 0366
Seg 0010A-004FE, 03F4 left, need 0366
Seg 00500-07FFE, 7AFC left, need 0366
Seg 00000-00006, 0004 left, need 0366
Seg 00008-0001C, 0000 left, need 0366
Seg 0001E-0003E, 0022 left, need 0366

1 Errors, 188 Warnings.
Halting build on first failure as requested.
BUILD FAILED: Tue Aug 26 12:11:19 2008


ex_bootloader.C
#if defined(__PCM__)
#include <16F877.h>
#fuses HS,NOWDT,NOPROTECT,NOLVP
#use delay(clock=20000000)
#use rs232(baud=9600, xmit=PIN_C6, rcv=PIN_C7) // Jumpers: 8 to 11, 7 to 12

#elif defined(__PCH__)
#include <18F452.h>
#fuses HS,NOWDT,NOPROTECT,NOLVP
#use delay(clock=20000000)
#use rs232(baud=9600, xmit=PIN_C6, rcv=PIN_C7) // Jumpers: 8 to 11, 7 to 12
#endif
#define APPLICATION_END (getenv("PROGRAM_MEMORY")-1)
#define _bootloader
#include <bootloader.h>
#include <loader.c>
#include <PSMI_Definitions.h>
#if defined(__PCM__)
#org LOADER_END+1,LOADER_END+10
#elif defined(__PCH__)
#org LOADER_END+2,APPLICATION_END
#endif
void application(void) {
while(TRUE);
}

#if defined(__PCH__)
#org 0x40,0x7F
#else
#org 0x20,0x3F
#endif
void main(void) {
if(!input(PIN_B5))
{
load_program();
}

application();
}

#ORG default

#int_global
void isr(void) {
jump_to_isr(LOADER_END+5*(getenv("BITS_PER_INSTRUCTION")/8));
}


psmi_definitions.h:
#ifndef _DEFINITIONS_H
#define _DEFINITIONS_H
#use i2c(Slave,Fast,sda=PIN_C4,scl=PIN_C3,RESTART_WDT,force_hw,address=0x20)
#use fast_io(A)
#use fast_io(B)
#use fast_io(C)
#use fast_io(D)
#use fast_io(E)

#byte PORTA = 0xF80
#byte PORTB = 0xF81
#byte PORTC = 0xF82
#byte PORTD = 0xF83
#byte PORTE = 0xF84
#byte REG_I2C_BUFFER = 0xFC9//SSP1BUF
#byte SSPCON = 0xFC6
#byte TRISA = 0xF92
#byte TRISB = 0xF93
#byte TRISC = 0xF94
#byte TRISD = 0xF95
#byte TRISE = 0xF96
#byte SSPCON2 = 0xFC5
#byte PR2 = 0xFCB
#byte SSPADD = 0xFC8
#byte SSPSTAT = 0xFC7
#byte REG_I2C_STATUS = 0xFC7

#bit TRISC_PWM = TRISC.2
#bit TRISC_SCL = TRISC.3
#bit TRISC_SDA = TRISC.4
//#bit TRISD_SCL_ADM = TRISD.1
//#bit TRISD_SDA_ADM = TRISD.2
#bit TRISD_SCL_ADM = TRISD.0
#bit TRISD_SDA_ADM = TRISD.1
#bit SSPCON_CKP = SSPCON.4
#bit SSPCON_SSPEN = SSPCON.5
#bit SSPCON_SSPOV = SSPCON.6
#bit SSPCON_WCOL = SSPCON.7
#bit SSPADD_A0 = SSPADD.1
#bit SSPADD_A1 = SSPADD.2

#bit SSPSTAT_BF = SSPSTAT.0

#case //case sensitive program coding setup

#define INI_PORTA 0b00000000
//#define INI_PORTB 0b00000100
#define INI_PORTB 0b00000000
#define INI_PORTC 0b00000100
//#define INI_PORTD 0b10000001
#define INI_PORTD 0b00000000
#define INI_PORTE 0b00000000

#define TRIS_PORTA 0b00101111
#define TRIS_PORTB 0b00111111
#define TRIS_PORTC 0b11011011
#define TRIS_PORTD 0b00100111
#define TRIS_PORTE 0b00000111

//==============================================
// DEFINITION OF CONSTANTS
//Threshold Levels for ADC

// integer 1024 where: integer = SW equivalent
// -------- = ------ Vmicro = input voltage to microcontroller analog pin
// Vmicro 2.5V

//Temperature Thresholds--------------------------------------------------------


static int1 i13V3SB_ON;
static int1 i13V3SB_0CPSTART;
static int1 i12Vstartup;
static int1 i12VUVP_PMBUSET;
static int1 i1flag_OCP1;
static int1 i1flag_OCW1;
static int8 i1flag_OCPdelay;

static int1 i1pin_FAN_FAIL_OUT;

#endif
I don't know the CCS complier how to deal with my header file.

if remove one line, such as "static int1 i1pin_FAN_FAIL_OUT;", can be build ok.

It seem the content of header file ocupy some wrong place of ROM,how to aviod it?Thanks.