你的錯誤訊息為 :

Skipping link step. The project contains no linker script

表示你的 Project 中沒有包含 .lkr 檔. 請將 C:\MCC18\lkr\p18f4550i.lkr 檔加入 Project 中就應該 OK 了.

Regards,

版主你好:

Toolsuite Contents:
選擇 MPLAB C18 C Compiler(mcc18.exe)
但是build all 會有問題
我不了解哪裡有問題??
感謝版主的慈悲!!


程式:

*********************************************
/*********************************************************************
*
* Microchip USB Bootloader Version 1.2
*
*********************************************************************
* FileName: main.c
* Dependencies: See INCLUDES section below
* Processor: PIC18
* Compiler: C18 3.11+
* Company: Microchip Technology, Inc.
*
* Software License Agreement
*
* The software supplied herewith by Microchip Technology Incorporated
* (the ompany? for its PICmicro?Microcontroller is intended and
* supplied to you, the Company customer, for use solely and
* exclusively on Microchip PICmicro Microcontroller products. The
* software is owned by the Company and/or its supplier, and is
* protected under applicable copyright laws. All rights are reserved.
* Any use in violation of the foregoing restrictions may subject the
* user to criminal sanctions under applicable laws, as well as to
* civil liability for the breach of the terms and conditions of this
* license.
*
* THIS SOFTWARE IS PROVIDED IN AN S IS?CONDITION. NO WARRANTIES,
* WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT NOT LIMITED
* TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. THE COMPANY SHALL NOT,
* IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL OR
* CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
*
* Author Date Comment
*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
* Rawin Rojvanit 11/19/04 Original.
* Rawin Rojvanit 05/14/07 Minor updates.
********************************************************************/

/*********************************************************************
IMPORTANT NOTE: This booloader example code is not intended to work
with the PIC18F87J50 Family of microcontrollers.
*********************************************************************/


/** I N C L U D E S **********************************************************/
#include "C:\MCC18\h\P18F4550.h"
#include "C:\MCHPFSUSB\ttt\Boot\system\typedefs.h" // Required
#include "C:\MCHPFSUSB\ttt\Boot\system\usb\usb.h" // Required
#include "C:\MCHPFSUSB\ttt\Boot\io_cfg.h" // Required

#include "C:\MCHPFSUSB\ttt\Boot\system\usb\usb_compile_time_validation.h" // Optional

/** C O N F I G U R A T I O N ************************************************/

#if defined(__18F4550)||defined(__18F4455)|| \
defined(__18F2550)||defined(__18F2455)|| \
defined(__18F4553)||defined(__18F4458)|| \
defined(__18F2553)||defined(__18F2458)

// Note: Some of the below configuration bits are commented out
// to prevent build errors with some of the above listed devices.
// For example, on the PIC18F4458 CP3, WRT3, and EBTR3 don't exist.

#pragma config PLLDIV = 5 // (20 MHz input)
#pragma config CPUDIV = OSC1_PLL2
#pragma config USBDIV = 2 // Clock source from 96MHz PLL/2
#pragma config FOSC = HSPLL_HS
#pragma config FCMEN = OFF
#pragma config IESO = OFF
#pragma config PWRT = OFF
#pragma config BOR = ON
#pragma config BORV = 3
#pragma config VREGEN = ON
#pragma config WDT = OFF
#pragma config WDTPS = 32768
#pragma config MCLRE = ON
#pragma config LPT1OSC = OFF
#pragma config PBADEN = OFF
#pragma config CCP2MX = ON
#pragma config STVREN = ON
#pragma config LVP = OFF
//#pragma config ICPRT = OFF // Dedicated In-Circuit Debug/Programming
#pragma config XINST = OFF // Extended Instruction Set
#pragma config CP0 = OFF
#pragma config CP1 = OFF
#pragma config CP2 = OFF
//#pragma config CP3 = OFF
#pragma config CPB = OFF
#pragma config CPD = OFF
#pragma config WRT0 = OFF
#pragma config WRT1 = OFF
#pragma config WRT2 = OFF
//#pragma config WRT3 = OFF
#pragma config WRTB = ON // Boot Block Write Protection
#pragma config WRTC = OFF
#pragma config WRTD = OFF
#pragma config EBTR0 = OFF
#pragma config EBTR1 = OFF
#pragma config EBTR2 = OFF
//#pragma config EBTR3 = OFF
#pragma config EBTRB = OFF

#endif

/** V A R I A B L E S ********************************************************/
#pragma udata

/** P R I V A T E P R O T O T Y P E S ***************************************/

/** V E C T O R R E M A P P I N G *******************************************/

#pragma code _HIGH_INTERRUPT_VECTOR = 0x000008
void _high_ISR (void)
{
_asm goto RM_HIGH_INTERRUPT_VECTOR _endasm
}

#pragma code _LOW_INTERRUPT_VECTOR = 0x000018
void _low_ISR (void)
{
_asm goto RM_LOW_INTERRUPT_VECTOR _endasm
}

#pragma code

/** D E C L A R A T I O N S **************************************************/
#pragma code
/******************************************************************************
* Function: void main(void)
*
* PreCondition: None
*
* Input: None
*
* Output: None
*
* Side Effects: None
*
* Overview: Main program entry point.
*
* Note: None
*****************************************************************************/
void main(void)
{
byte temp;
temp = ADCON1;
ADCON1 |= 0x0F;

//TRISBbits.TRISB4 = 1; // Reset value is already '1'

//Check Bootload Mode Entry Condition
if(PORTBbits.RB4 == 1) // If not pressed, User Mode
{
ADCON1 = temp; // Restore reset value
_asm goto RM_RESET_VECTOR _endasm
}//end if

//Bootload Mode
mInitAllLEDs();
mInitializeUSBDriver(); // See usbdrv.h
USBCheckBusStatus(); // Modified to always enable USB module
while(1)
{
USBDriverService(); // See usbdrv.c
BootService(); // See boot.c
}//end while
}//end main

#pragma code user = RM_RESET_VECTOR

/** EOF main.c ***************************************************************/


*********************************************


錯誤訊息如下

----------------------------------------------------------------------
Release build of project `C:\MCHPFSUSB\ttt\Hid\Ctrl_IO_AD_DEMO\MCHPUSB.mcp' started.
Wed Jan 16 15:11:54 2008
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Clean: Deleting intermediary and output files.
Clean: Deleted file "C:\MCHPFSUSB\ttt\Hid\Ctrl_IO_AD_DEMO\main.o".
Clean: Done.
Executing: "c:\mcc18\bin\mcc18.exe" -p=18F4550 "C:\MCHPFSUSB\ttt\Boot\main.c" -fo="main.o" -Ou- -Ot- -Ob- -Op- -Or- -Od- -Opa-
MPLAB C18 v3.15 (demo)
Copyright 1999-2005 Microchip Technology Inc.
Days remaining until demo becomes feature limited: 60
Skipping link step. The project contains no linker script.
----------------------------------------------------------------------
Release build of project `C:\MCHPFSUSB\ttt\Hid\Ctrl_IO_AD_DEMO\MCHPUSB.mcp' failed.
Wed Jan 16 15:11:54 2008
FAILED
----------------------------------------------------------------------