Exemplos de IO_DIR_PORT_PIN em C++ (Cpp)

Exemplo n.º 1

Arquivo: hal_i2c.c Projeto: smileboywtu/ZigbeeLcdStack

/*********************************************************************
 * @fn      hali2cClock
 * @brief   Clocks the SM-Bus. If a negative edge is going out, the
 *          I/O pin is set as an output and driven low. If a positive
 *          edge is going out, the pin is set as an input and the pin
 *          pull-up drives the line high. This way, the slave device
 *          can hold the node low if longer setup time is desired.
 * @param   dir - clock line direction
 * @return  void
 */
STATIC void hali2cClock( bool dir )
{
  if ( dir )
  {
    IO_DIR_PORT_PIN( OCM_CLK_PORT, OCM_CLK_PIN, IO_IN );
  }
  else
  {
    IO_DIR_PORT_PIN( OCM_CLK_PORT, OCM_CLK_PIN, IO_OUT );
    OCM_SCL = 0;
  }
  hali2cWait(1);
}

Exemplo n.º 2

Arquivo: hal_i2c.c Projeto: pcarrigg/FrSky_CC2510

/*********************************************************************
 * @fn      hali2cClock
 * @brief   Clocks the SM-Bus. If a negative edge is going out, the
 *          I/O pin is set as an output and driven low. If a positive
 *          edge is going out, the pin is set as an input and the pin
 *          pull-up drives the line high. This way, the slave device
 *          can hold the node low if longer setup time is desired.
 * @param   dir - clock line direction
 * @return  void
 */
STATIC void hali2cClock( bool dir )
{
  if ( dir )
  {
    IO_DIR_PORT_PIN( OCM_CLK_PORT, OCM_CLK_PIN, IO_IN );
    while(!OCM_SCL) /* Wait until clock is high */
        hali2cWait(1);
  }
  else
  {
    IO_DIR_PORT_PIN( OCM_CLK_PORT, OCM_CLK_PIN, IO_OUT );
    OCM_SCL = 0;
  }
  hali2cWait(1);
}

Exemplo n.º 3

Arquivo: hal_i2c.c Projeto: pcarrigg/FrSky_CC2510

/*********************************************************************
 * @fn      HalI2CInit
 * @brief   Initializes two-wire serial I/O bus
 * @param   void
 * @return  void
 */
void HalI2CInit( void )
{
  if (!s_xmemIsInit)  {
    s_xmemIsInit = 1;

//    // Set port pins as inputs
    IO_DIR_PORT_PIN( OCM_CLK_PORT, OCM_CLK_PIN, IO_IN );
    IO_DIR_PORT_PIN( OCM_DATA_PORT, OCM_DATA_PIN, IO_IN );
//
//    // Set for general I/O operation
    IO_FUNC_PORT_PIN( OCM_CLK_PORT, OCM_CLK_PIN, IO_GIO );
    IO_FUNC_PORT_PIN( OCM_DATA_PORT, OCM_DATA_PIN, IO_GIO );
//
//    // Set I/O mode for pull-up/pull-down
    IO_IMODE_PORT_PIN( OCM_CLK_PORT, OCM_CLK_PIN, IO_PUD );
    IO_IMODE_PORT_PIN( OCM_DATA_PORT, OCM_DATA_PIN, IO_PUD );
//
//    // Set pins to pull-up
    IO_PUD_PORT( OCM_CLK_PORT, IO_PUP );
    IO_PUD_PORT( OCM_DATA_PORT, IO_PUP );
  }
}