main.c

经过改进之后的CAN－USB接口卡固件程序

#include <hidef.h>
#include <string.h>

#include <math.h>
#include <mc9s12dp256.h>


#include "define.h"

#include "Initial.h"
#include "SCI_COM.h"

#include "soft.h"
#include "D12.h"
#include "Interrupt.h"
#include "CAN.h"

#include "my_APP.h"

#pragma CODE_SEG DEFAULT
//注意:TBDML中的设置:
//当在没有外部晶振的情况下,TBDML中的速度设置为6M;
//在D12加上之后,没有初始化的时候,速度是4.465M

void main(void)
{
	unsigned char i = 0;
	unsigned int i_st = 0;
	UINT status = 0;
	UINT j = 0;
	UINT PB_data = 0;
	
	Delay(5000);
	CLKSEL = 0x80;//2倍频
//	COPCTL = 0x07;//	(*   Page 289   *)看门狗
//	Soft_Init();	
//------------------------------------------------------------------------------------				
	Port_Init(); 	
//------------------------------------------------------------------------------------	
	D12_SPD_0;	
	
	Set_LED(0xFF);//可以设置到0x41,芯片频率是24M,并口BDM可以下载,但是TBDML不能下载.
					//设置到0x42,芯片频率正常,0x40,芯片保护.
	D12_SetMode(0x02,0x42);
	Delay(40000);
    D12_SetMode(0x12,0x42);		
	
	if(D12_ReadChipID() != 0x1012)
	{
		Set_LED(0x55);
		while(1);
	}
	
	RTIInit();
	SCI_Initial();	//串口初始化
	CAN0_Initial();	//CAN0初始化
	CAN1_Initial();	//CAN0初始化
	
	Write_To_SCI0("SCI0 -> PDIUSBD12 initial success!\n");
	Write_To_SCI1("SCI1 -> PDIUSBD12 initial success!\n");
	
	Set_LED(0x00);	

//---------   要发送的CAN数据初始化	  ----------------
	SendFrame.RemoteFlag = 0;
	SendFrame.ExternFlag = 1;
	SendFrame.ID = 0x12345;
	SendFrame.Priority = 3;
	SendFrame.DataLen = 8;
	
	for(i=0;i<8;i++)	
		SendFrame.Data[i] = i;

	for(i=0;i<2;i++)
	{		
		USB_Packet[i].USB_Packet_struct.start = 0xAB;
		USB_Packet[i].USB_Packet_struct.CAN_frame_num = 0;
		USB_Packet[i].USB_Packet_struct.end = 0xCD;
	}
//------------------------------------------------------
		
	EnableInterrupts;//中断使能
	
	Delay(10000);	
	
	while(1)
	{
		//实时中断控制的LED
		if(RTI_count < 10)
			RTI_LED_ON;
		else if(RTI_count < 20)
		{
			RTI_LED_OFF;									
		}
		else
		{
			if(USB_D12_OK == 1)
				USB_LED_ON;
			if(CAN0RIER & 0x01)
				CAN0_RX_LED_ON;
			if(CAN1RIER & 0x01)
				CAN1_RX_LED_ON;
			
			if(CAN_BTR0 == BTR0_125kbps)
			{
				LED2_OFF;
				LED3_OFF;
			}
			else if(CAN_BTR0 == BTR0_250kbps)
			{
				LED2_ON;
				LED3_OFF;
			}
			else if(CAN_BTR0 == BTR0_500kbps)
			{
				LED2_OFF;
				LED3_ON;
			}
			else if(CAN_BTR0 == BTR0_1000kbps)
			{
				LED2_ON;
				LED3_ON;
			}
			
			RTI_count = 0;			
		}	
	}   
}