usb.h

CAN总线开发板源代码与原理图

#include <stc10fxx.h>
#include <stdio.h>                   
#include <intrins.h>                   

#define  uchar unsigned char           
#define  uint unsigned int              
#define  ulong unsigned long         
#define  nop _nop_()
#define  Nop5 _nop_();_nop_();_nop_();_nop_();
#include "ch372.h"

uchar xdata	CH375_CMD_PORT _at_ 0xFDFF;	// CH372命令端口的I/O地址
uchar xdata	CH375_DAT_PORT _at_ 0xF9FF;	// CH372数据端口的I/O地址

sfr	CH372_DATA_PORT = 0x80;  //数据端口

sbit CH372_A0 = P2^2;
sbit CH372_Rd = P3^7;
sbit CH372_Wr = P3^6;
sbit CH372_INT = P3^2;

uchar idata USB_Buff[64];

uchar USB_RecLen;
bit USB_RecFlag;
bit USB_SendFlag;