d12ci.h

采用PDIUSBD12开发的USB总线与429总线数据转换的单片机固件程序

#ifndef __D12CI_H__
#define __D12CI_H__

//#define COMMAND P3^0=1
//#define DATA    P3^0=0


#define DISABLE EA=0
#define ENABLE  EA=1


#define MAX_ENDPOINTS      (unsigned char)0x3
#define EP0_PACKET_SIZE    16
#define EP1_PACKET_SIZE    4//?????????????????????????????????????????????
#define EP2_PACKET_SIZE    4

#define D12_INT_ENDP0OUT		0x01
#define D12_INT_ENDP0IN			0x02
#define D12_INT_ENDP1OUT		0x04
#define D12_INT_ENDP1IN			0x08
#define D12_INT_ENDP2OUT		0x10
#define D12_INT_ENDP2IN			0x20
#define D12_INT_BUSRESET		0x40
#define D12_INT_SUSPENDCHANGE	        0x80
#define D12_INT_EOT			0x0100

#define D12_SETUPPACKET			0x20
#define USB_ENDPOINT_DIRECTION_MASK     0x80

#define D12_FULLEMPTY			0x01
#define D12_STALL		        0x02

#define D12_NOLAZYCLOCK			0x02
//#define D12_CLOCKRUNNING              0x04
//#define D12_INTERRUPTMODE		0x08
#define D12_SOFTCONNECT			0x10
#define D12_CLOCK_12M			0x03
#define D12_CLOCK_6M			0x07
#define D12_SETTOONE                    0x40
//#define D12_SOFONLY		        0x80

void ep0_txdone(void);
void ep0_rxdone(void);
void ep1_txdone(void);
void ep1_rxdone(void);
void ep2_txdone(void);
void ep2_rxdone(void);



//命令接口函数
unsigned char D12_ReadLastTransactionStatus(unsigned char bEndp);
unsigned char D12_ReadEndpoint(unsigned char endp, unsigned char len, unsigned char * buf);
unsigned char D12_WriteEndpoint(unsigned char endp, unsigned char len, unsigned char * buf);
unsigned short D12_ReadInterruptRegister(void);
unsigned char D12_SelectEndpoint(unsigned char bEndp);
//unsigned char D12_ReadEndpointStatus(unsigned char bEndp);

void D12_AcknowledgeEndpoint(unsigned char endp);
void D12_SetEndpointEnable(unsigned char bEnable);
void D12_SetEndpointStatus(unsigned char bEndp, unsigned char bStalled);
void D12_SetAddressEnable(unsigned char bAddress, unsigned char bEnable);
void D12_SetMode(unsigned char bConfig, unsigned char bClkDiv);


//USB状态
#define USB_IDLE           0
#define USB_TRANSMIT       1
#define USB_RECEIVE        2


//移位操作
#define SWAP(x)   ((((x) & 0xFF) << 8) | (((x) >> 8) & 0xFF))
#define MSB(x)    (((x) >> 8) & 0xFF)
#define LSB(x)    ((x) & 0xFF)

//USB事件标志
typedef union _epp_flags
{
   struct _flags
   {
      unsigned char timer         :1;//时间
      unsigned char bus_reset     :1;//总线复位标志
      unsigned char suspend       :1;//挂起改变标志
      unsigned char setup_packet  :1;//收到setup包
      unsigned char remote_wakeup :1;//远程唤醒（未使用）
      unsigned char in_isr        :1;//USB中断服务标志
      unsigned char control_state :2;//控制端点状态
                                     //0：idle 1：transmit 2：receive
      unsigned char configuration :1;//配置标志（0：未配置 1：已经配置）
      unsigned char command       :1;//未使用
      unsigned char ep1_rxdone    :1;//端点1收到数据标志
      unsigned char ep2_rxdone    :1;//端点2收到数据标志
      unsigned char ep1_buffull   :1;//端点1输出双缓冲区满
      unsigned char ep2_buffull   :1;//端点2输出双缓冲区满
   }bits;
   unsigned short value;
}EPPFLAGS;

//USB设备请求寄存器
typedef struct _device_request
{
   unsigned char bmRequestType;//请求类型（传输方向，类型，接收器）
   unsigned char bRequest     ;//USB请求
   unsigned short wValue      ;//USB请求值
   unsigned short wIndex      ;//USB请求索引
   unsigned short wLength     ;//计数长度
}DEVICE_REQUEST;

#define MAX_CONTROLDATA_SIZE	8

//Setup包数据缓冲区
typedef struct _control_xfer
{
   DEVICE_REQUEST DeviceRequest;//设备请求
   unsigned short wLength      ;//传输数据的总字节数
   unsigned short wCount       ;//传输字节数统计
   unsigned char *pData        ;//传输数据的指针
   unsigned char dataBuffer[MAX_CONTROLDATA_SIZE];//请求的数据
}CONTROL_XFER;


#endif