d12.c

运行于c51单片机上的用keil c创建的C源程序,采用PDIUSBD12接口。

void D12_SetAddressEnable(unsigned char B_Addr,unsigned char B_Enable)
{
  if(GETBIT(B_D12_Lb,INT_ISR) == 0) DISABLE;
  
  D12_COMMAND = 0xd0;
  if(B_Enable) B_Addr |= 0x80;
  else B_Addr &= ~0x80;
  D12_DATA = B_Addr;

  if(GETBIT(B_D12_Lb,INT_ISR) == 0) ENABLE;
}

void D12_SetEndpointEnable(unsigned char B_Enable)
{
  if(GETBIT(B_D12_Lb,INT_ISR) == 0) DISABLE;

  D12_COMMAND = 0xd8;
  D12_DATA = B_Enable;

  if(GETBIT(B_D12_Lb,INT_ISR) == 0) ENABLE;
}

void D12_SetMode(unsigned char B_Config,unsigned char B_ClkDiv)
{
  if(GETBIT(B_D12_Lb,INT_ISR) == 0) DISABLE;

  D12_COMMAND = 0xf3;
  D12_DATA = B_Config;
  D12_DATA = B_ClkDiv;

  if(GETBIT(B_D12_Lb,INT_ISR) == 0) ENABLE;
}

void D12_SetDMA(unsigned char B_Mode)
{
  if(GETBIT(B_D12_Lb,INT_ISR) == 0) DISABLE;

  D12_COMMAND = 0xfb;
  D12_DATA = B_Mode;

  if(GETBIT(B_D12_Lb,INT_ISR) == 0) ENABLE;
}

unsigned int D12_ReadInterruptRegister(void)
{
  unsigned int i;
  unsigned char j;
  D12_COMMAND = 0xf4;
  j = D12_DATA;
  i = D12_DATA;
  i = (i << 8) + j;
  return (i);
}

unsigned char D12_SelectEndpoint(unsigned char B_Endp)
{
  unsigned char B_Reg;
  if(GETBIT(B_D12_Lb,INT_ISR) == 0) DISABLE;

  D12_COMMAND = B_Endp;
  B_Reg = D12_DATA;

  if(GETBIT(B_D12_Lb,INT_ISR) == 0) ENABLE;
  return (B_Reg);
}

unsigned char D12_ReadLastTransactionStatus(unsigned char B_Endp)
{
  D12_COMMAND = B_Endp + 0x40;
  return (D12_DATA);
}

unsigned char D12_ReadEndpoint(unsigned char B_Endp, unsigned char B_Len, unsigned char * B_Buf)
{
  unsigned char i,j;
  if(GETBIT(B_D12_Lb,INT_ISR) == 0) DISABLE;

  D12_COMMAND = B_Endp;
  i = D12_DATA;
  if(i & D12_FULLEMPTY)//define D12_FULLEMPTY   0x01  buff full no read??
  {
    j = 0; 
  }
  else
  {
    D12_COMMAND = 0xf0;//read buff
    j = D12_DATA;
    j = D12_DATA;
    if(j > B_Len) j = B_Len;
    for(i=0;i<j;i++) B_Buf[i] = D12_DATA;
    D12_COMMAND = 0xF2;//clear buff for receive new data
  }
  if(GETBIT(B_D12_Lb,INT_ISR) == 0) ENABLE;
  return (j);
}

unsigned char D12_WriteEndpoint(unsigned char B_Endp, unsigned char B_Len, unsigned char * B_Buf)
{
  unsigned char i;
  if(GETBIT(B_D12_Lb,INT_ISR) == 0) DISABLE;

  D12_COMMAND = B_Endp;//select endpoint
  i = D12_DATA;//not use
  D12_COMMAND = 0xF0;//write buff
  D12_DATA = 0;
  D12_DATA = B_Len;
  for(i=0;i<B_Len;i++) D12_DATA = B_Buf[i];
  D12_COMMAND = 0xfa;//validate buff

  if(GETBIT(B_D12_Lb,INT_ISR) == 0) ENABLE;
  return (B_Len);
}

void D12_SetEndpointStatus(unsigned char B_Endp,unsigned char B_Stall)
{
  if(GETBIT(B_D12_Lb,INT_ISR) == 0) DISABLE;

  D12_COMMAND = 0x40 + B_Endp;
  D12_DATA = B_Stall;

  if(GETBIT(B_D12_Lb,INT_ISR) == 0) ENABLE;
}

void D12_AcknowledgeEndpoint(unsigned char B_Endp)
{
  D12_COMMAND = B_Endp;
  D12_COMMAND = 0xf1;
  if(B_Endp == 0) D12_COMMAND = 0xf2;
}