參照：

右邊教育訓練，裡面的講義 CAN202 可以給你參考
APP001+18F458 來玩CAN
不過一個沒摸過MCU的一開始就要玩CAN
我只能說自嘆不如

因為對chip完全沒碰過..
也沒有上過課程...
就突然要用can bus的東西...(ap001...18f458)
所以'想請問有哪些文件可以參考阿...

按原理來說pic18f458是18f452的超集,如果在程式裡面沒有使用到18f458的專有功能.程式一般會通用.

但是這樣採用也太魯莽了,最好熟習一下兩個晶片的異同之處方能胸中有竹吧

最好來上一下 workshop 的課，這樣會比較容易上手。

PIC18F458 有多比較器，要觀掉才行。

拿範例來說

假設F18_config.c是
#pragma romdata CONFIG
const rom unsigned char CONFIG1L=0xff ; // Don't care byte
const rom unsigned char CONFIG1H=0b00100010 ; // Disable OSC switch , XXXXX010 = HS Osc
const rom unsigned char CONFIG2L=0b00000001 ; // Disable PWRT , Disable BOR
const rom unsigned char CONFIG2H=0b00000000 ; // Disable WDT timer
const rom unsigned char CONFIG3L=0xff ; // Don't care byte
const rom unsigned char CONFIG3H=0b00000000 ; // XXXXXXX0 = CCP2 --> RB3
const rom unsigned char CONFIG4L=0b00000001 ; // 0XXXXXXX Backgroung Debug Enable ( ICD )
const rom unsigned char CONFIG4H=0xff ; // Don't care byte
const rom unsigned char CONFIG5L=0b00001111 ; // Not PROG code protected
const rom unsigned char CONFIG5H=0b11000000 ; // Not EEPROM code protected
const rom unsigned char CONFIG6L=0b00001111 ;
const rom unsigned char CONFIG6H=0b11100000 ;
const rom unsigned char CONFIG7L=0b00001111 ;
const rom unsigned char CONFIG7H=0b01000000 ;
#pragma romdata

Main.c是
//***********************************************
//* Main.C *
//***********************************************
//* W-AP002 MPLAB C18 Advance Workshop *
//* Written by: Richard Yang *
//* Sr. Corporate Applications Engr.*
//* Microchip Technology Inc. *
//* Date: 16 January 2003 *
//* Revision: 1 *
//***********************************************
//* 練習一
//* 1. 將 “WAP-002 Workshop” 的字串從 ROM 讀出並顯示在 LCD 螢幕的第一行位置
//* 2. 將你的英文名字顯示在第二行的起始位置
//* 3. 將一數目字從 0 到 9 順序顯示在 LCD 第二行最後一個位置，間格時間 0.5 Sec
//*

//* 宣告所使用的含入檔
//***********************************************************
#include <p18f452.h>
#include <delays.h>
#include "P18F_LCD.h"

//* 函數原型宣告
//***********************************************************
void InitializePORT(void);

//* 定義查表字串及變數並放在 Access Bank 中
//***********************************************************
#pragma idata access My_RAM_1
near char LCD_RAM_MSG[ ]="Richard Yang";
near unsigned char LCD_Char='0';
near unsigned int sum = 0 ;
near unsigned int sum1 = 1 , abc = 1, bcd = 0 ;
//* 定義LCD顯示的查表字串並放在 ROM 區
//***********************************************************
#pragma romdata RomData
const rom char LCD_ROM_MSG[ ] ="WAP-002 Workshop";
#pragma code



//***********************************************************
/* */
/* Main Program */
/* */
//***********************************************************
void main(void)
{
InitializePORT( );

TBLPTR = 0 ;

Nop();
if(!sum){
if(sum1){
abc = 0 ;
bcd = 1 ;
}
Nop();
}
_asm

TBLRDPOSTINC

_endasm

sum = TABLAT ;


// 開啟 LCD 模組
OpenLCD( );
// 在 LCD 第一行顯示字串訊息"WAP-002 Workshop"
LCD_Set_Cursor(0,0);
putrsLCD(LCD_ROM_MSG);
// 在 LCD 第二行顯示你的英文名字
LCD_Set_Cursor(1,0);
putsLCD(LCD_RAM_MSG);

while(1)
{
// 設定顯示位置在第二行第15個，顯示一數目字元(0~9)間隔0.5秒
// 延遲函數用 Delay10KTCYx(unsigned char)來完成
// 顯示數字從"0x30" to "0x39"
LCD_Set_Cursor(1,15);
Delay10KTCYx(200) ;
putcLCD(LCD_Char++);
if (LCD_Char==0x3A) LCD_Char='0';

}

}



//************************************************
//* Function: Initialize PORT *
//************************************************
void InitializePORT(void)
{

PORTA=0x00;
TRISA=0b11011011; // RA2 as LCD-E control, RA5 as CS Control for SPI
PORTD=0x00;
TRISD=0x00; // Set PORTD as Output port
}

#pragma code

WAP_LCD.c是
#include <p18f452.h>
#include <delays.h>
#include "P18F_LCD.h"

//
// Defines for I/O ports that provide LCD data & control
// PORTD[0:3]-->DB[4:7]: Higher order 4 lines data bus with bidirectional
// : DB7 can be used as a BUSY flag
// PORTA,2 --> [E] : LCD operation start signal control
// PORTD,5 --> [RW]: LCD Read/Write control
// PORTD,4 --> [RS]: LCD Register Select control
// : "0" for Instrunction register (Write), Busy Flag (Read)
// : "1" for data register (Read/Write)
//
#define CPU_SPEED 16 // CPU speed is 16 Mhz !!
#define LCD_RS PORTDbits.RD4 // The definition of control pins
#define LCD_RW PORTDbits.RD5
#define LCD_E PORTAbits.RA2
#define LCD_DATA LATD // PORTD[0:3] as LCD DB[4:7]
//#define LCD_CTRL LATA
#define DIR_LCD_DATA TRISD


// LCD Module commands
#define DISP_2Line_8Bit 0b00111000
#define DISP_2Line_4Bit 0b00101000
#define DISP_ON 0x00C // Display on
#define DISP_ON_C 0x00E // Display on, Cursor on
#define DISP_ON_B 0x00F // Display on, Cursor on, Blink cursor
#define DISP_OFF 0x008 // Display off
#define CLR_DISP 0x001 // Clear the Display
#define ENTRY_INC 0x006 //
#define ENTRY_INC_S 0x007 //
#define ENTRY_DEC 0x004 //
#define ENTRY_DEC_S 0x005 //
#define DD_RAM_ADDR 0x080 // Least Significant 7-bit are for address
#define DD_RAM_UL 0x080 // Upper Left coner of the Display

#pragma udata

unsigned char Temp_CMD ;
unsigned char Str_Temp ;
unsigned char Out_Mask ;

#pragma code



void OpenLCD(void)

{
ADCON1=(ADCON1 & 0xF0)|0b00001110; // Set AN0 for analog input
LCD_E=0;

LCD_DATA = 0x00; // LCD DB[4:7] & RS & R/W --> Low

DIR_LCD_DATA = 0x00; // LCD DB[4:7} & RS & R/W are output function
TRISAbits.TRISA2=0; // Set E pin as output

LCD_DATA = 0b00000011 ;
LCD_CMD_W_Timing() ;
LCD_L_Delay() ;

LCD_DATA = 0b00000011 ;
LCD_CMD_W_Timing() ;
LCD_L_Delay() ;

LCD_DATA = 0b00000011 ;
LCD_CMD_W_Timing() ;
LCD_L_Delay() ;

LCD_DATA = 0b00000010 ;
LCD_CMD_W_Timing() ;
LCD_L_Delay() ;

WriteCmdLCD(DISP_2Line_4Bit) ;
LCD_S_Delay() ;

WriteCmdLCD(DISP_ON) ;
LCD_S_Delay() ;

WriteCmdLCD(ENTRY_INC) ;
LCD_S_Delay() ;

WriteCmdLCD(CLR_DISP) ;
LCD_L_Delay() ;


}

//*********************************************
// _ ______________________________
// RS _>--<______________________________
// _____
// RW \_____________________________
// __________________
// E ____________/ \___
// _____________ ______
// DB _____________>--------------<______
//***********************************************
// Write Command to LCD module
//
void WriteCmdLCD( unsigned char LCD_CMD)
{
Temp_CMD = (LCD_CMD & 0xF0)>>4 ; // Send high nibble to LCD bus
LCD_DATA= (LCD_DATA & 0xF0)|Temp_CMD ;
LCD_CMD_W_Timing () ;

Temp_CMD = LCD_CMD & 0x0F ; // Send low nibble to LCD bus
LCD_DATA= (LCD_DATA & 0xF0)|Temp_CMD ;
LCD_CMD_W_Timing () ;

LCD_S_Delay() ; // Delay 100uS for execution
}

//***********************************************
// Write Data to LCD module
//
void WriteDataLCD( unsigned char LCD_CMD)
{

Temp_CMD = (LCD_CMD & 0xF0)>>4 ; // Send high nibble to LCD bus
LCD_DATA= (LCD_DATA & 0xF0)|Temp_CMD ;
LCD_DAT_W_Timing () ;

Temp_CMD = LCD_CMD & 0x0F ; // Send low nibble to LCD bus
LCD_DATA= (LCD_DATA & 0xF0)|Temp_CMD ;
LCD_DAT_W_Timing () ;

LCD_S_Delay() ; // Delay 100uS for execution
}

void putcLCD(unsigned char LCD_Char)
{
WriteDataLCD(LCD_Char) ;

}
void LCD_CMD_W_Timing( void )
{
LCD_RS = 0 ; // Set for Command Input
Nop();
// LCD_RW = 0 ;
Nop();
LCD_E = 1 ;
Nop();
Nop();
LCD_E = 0 ;
}

void LCD_DAT_W_Timing( void )
{
LCD_RS = 1 ; // Set for Data Input
Nop();
// LCD_RW = 0 ;
Nop();
LCD_E = 1 ;
Nop();
Nop();
LCD_E = 0 ;
}

//***********************************************
// Set Cursor position on LCD module
// CurY = Line (0 or 1)
// CurX = Position ( 0 to 15)
//
void LCD_Set_Cursor(unsigned char CurY, unsigned char CurX)
{
WriteCmdLCD( 0x80 + CurY * 0x40 + CurX) ;
LCD_S_Delay() ;
}

//***********************************************
// Put a ROM string to LCD Module
//
void putrsLCD( const rom char *Str )
{
while (1)
{
Str_Temp = *Str ;

if (Str_Temp != 0x00 )
{
WriteDataLCD(Str_Temp) ;
Str ++ ;
}
else
return ;
}
}

//***********************************************
// Put a RAM string to LCD Module
//
void putsLCD( char *Str)
{
while (1)
{
Str_Temp = *Str ;

if (Str_Temp != 0x00 )
{
WriteDataLCD(Str_Temp) ;
Str ++ ;
}
else
return ;
}
}


void puthexLCD(unsigned char HEX_Val)
{
unsigned char Temp_HEX ;

Temp_HEX = (HEX_Val >> 4) & 0x0f ;

if ( Temp_HEX > 9 )Temp_HEX += 0x37 ;
else Temp_HEX += 0x30 ;

WriteDataLCD(Temp_HEX) ;

Temp_HEX = HEX_Val & 0x0f ;
if ( Temp_HEX > 9 )Temp_HEX += 0x37 ;
else Temp_HEX += 0x30 ;

WriteDataLCD(Temp_HEX) ;
}

// *********************************************************************************
// Delay for atleast 10 ms
// *********************************************************************************
void LCD_L_Delay(void)
{
Delay10KTCYx(CPU_SPEED / 2) ;
}

// *********************************************************************************
// Delay for 100 us
// *********************************************************************************
void LCD_S_Delay(void)
{

Delay100TCYx(CPU_SPEED) ;
}

請問我要如何讓他在
chip是18F458上運作....
版子是APP001

我將它改成#include <p18f458.h>..
可是燒上去就是一團黑黑的耶..
請問要怎嚜解決阿

請問如果她的.c檔是..#include <p18f452.h>...
如果我現在的chip是...18f458...
我只要將include檔改掉.#include <p18f458.h>.就可以了嗎...
對於程式方面還有什麼要修改的地方....

因為完全是新手.....所以好多地方都不知道...＞＜