main.c.bak

LPC2146 的USB 开发

#include "lpc2136config.h"
#include "type.h"

extern volatile uint32 usart0_timer_base;  					//	串口0接收间隔计时	新加
extern volatile uint8 usart0_signal_flags;  				//	串口0的通讯标识

#define usart0_receiving		usart0_signal_flags&0x01	//	检查正在接收数据	
#define usart0_timer_over_value	200							//	串口0超时参数10us*200=2ms	

extern volatile uint32 usart0_timer_update;  				//	串口0

extern void config_system(void);
extern void usart0_receive_process(void);
extern void usart0_receive_timer_over_check(void);
extern void usart0_send_process(uint8 *BufferPtr,uint32 Length);
INT32U lastx,curx;
INT32U lasty,cury;


int main (void)
{		
	config_system();						//初始化函数：初始化中断、定时器等
	usart0_timer_update=0;  				//	串口0
	    
	    INT8U	err;
	    err=USB_Initialize();
	    if(err!=0)
	    	while(1);
	    Init_USBInterrupt();
	    IRQEnable();
	    lastx=2;
	    lasty=3;
	    
	while(1)
    {
	
		//usart0_receive_timer_over_check();	//串口超时检查

	    usart0_receive_process();				//串口接受发送数据处理
	    
	    usbserve();
	    if(bEPPflags.bits.configuration)
	    {
	    	if(bEPPflags.bits.hid_enumed==1)
	    	{
	    		DISABLE();
	    		curx=4;
	    		cury=5;
	    		GenEpBuf[0]=0x00;
	    		GenEpBuf[1]=curx-lastx;
	    		GenEpBuf[2]=cury-lasty;
	    		GenEpBuf[3]=0x00;
	    		USB_WriteEndpoint(3,4,GenEpBuf);
	    		ENABLE();
	    		
	    		lastx=curx;
	    		lasty=cury;
	       	}
	    }
    }
}