/*******************************************************************************
* Function Name: I2C_1_Start
********************************************************************************
*
* Summary:
* Invokes SCB_Init() and SCB_Enable().
* After this function call, the component is enabled and ready for operation.
* When configuration is set to "Unconfigured SCB", the component must first be
* initialized to operate in one of the following configurations: I2C, SPI, UART
* or EZ I2C. Otherwise this function does not enable the component.
*
* Parameters:
* None
*
* Return:
* None
*
* Global variables:
* I2C_1_initVar - used to check initial configuration, modified
* on first function call.
*
*******************************************************************************/
void I2C_1_Start(void)
{
if(0u == I2C_1_initVar)
{
I2C_1_Init();
I2C_1_initVar = 1u; /* Component was initialized */
}
I2C_1_Enable();
}
/*******************************************************************************
* Function Name: I2C_1_Start
********************************************************************************
*
* Summary:
* Starts the I2C hardware. Enables Active mode power template bits or clock
* gating as appropriate. It is required to be executed before I2C bus
* operation.
* The I2C interrupt remains disabled after this function call.
*
* Parameters:
* None
*
* Return:
* None
*
* Side Effects:
* This component automatically enables it's interrupt. If I2C is enabled
* without the interrupt enabled, it could lock up the I2C bus.
*
* Global variables:
* I2C_1_initVar - used to check initial configuration, modified
* on first function call.
*
* Reentrant:
* No
*
*******************************************************************************/
void I2C_1_Start(void)
{
/* Initialize I2C registers, reset I2C buffer index and clears status */
if(0u == I2C_1_initVar)
{
I2C_1_Init();
I2C_1_initVar = 1u; /* Component initialized */
}
I2C_1_Enable();
I2C_1_EnableInt();
}
/*******************************************************************************
* Function Name: I2C_1_I2CMasterDisableEcAm
********************************************************************************
*
* Summary:
* Disables externally clocked address match to enable master operation
* in active mode.
*
* Parameters:
* None
*
* Return:
* None
*
*******************************************************************************/
static void I2C_1_I2CMasterDisableEcAm(void)
{
/* Disables externally clocked address match to enable master operation in active mode.
* This applicable only for Multi-Master-Slave with wakeup enabled. Ticket ID#192742 */
if (0u != (I2C_1_CTRL_REG & I2C_1_CTRL_EC_AM_MODE))
{
/* Enable external address match logic */
I2C_1_Stop();
I2C_1_CTRL_REG &= (uint32) ~I2C_1_CTRL_EC_AM_MODE;
I2C_1_Enable();
}
}
