/**
*
* Resets the IIC device. Reset must only be called after the driver has been
* initialized. The configuration of the device after reset is the same as its
* configuration after initialization. Any data transfer that is in progress is
* aborted.
*
* The upper layer software is responsible for re-configuring (if necessary)
* and reenabling interrupts for the IIC device after the reset.
*
* @param InstancePtr is a pointer to the XIicPs instance.
*
* @return None.
*
* @note None.
*
******************************************************************************/
void XIicPs_Reset(XIicPs *InstancePtr)
{
Xil_AssertVoid(InstancePtr != NULL);
Xil_AssertVoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
/*
* Abort any transfer that is in progress.
*/
XIicPs_Abort(InstancePtr);
/*
* Reset any values so the software state matches the hardware device.
*/
XIicPs_WriteReg(InstancePtr->Config.BaseAddress, XIICPS_CR_OFFSET,
XIICPS_CR_RESET_VALUE);
XIicPs_WriteReg(InstancePtr->Config.BaseAddress,
XIICPS_TIME_OUT_OFFSET, XIICPS_TO_RESET_VALUE);
XIicPs_WriteReg(InstancePtr->Config.BaseAddress, XIICPS_IDR_OFFSET,
XIICPS_IXR_ALL_INTR_MASK);
}
/*
* IIC Abort Transaction
*/
int iic_reset_init_abort(XIicPs *IicPs, u16 DeviceId, u32 ClkRate) {
//Variables
// int i = 0;
// //Check if IIC is busy
// while (XIicPs_BusIsBusy(IicPs)) {
// i++;
// if (i >= 1000) {
//#ifdef DEBUG
// myprintf("Cannot abort IIC Transaction because IIC is busy.\r\n");
//#endif
// return XST_FAILURE;
// }
// }
//Reset and Init
// XIicPs_ResetHw(IIC_BASE_ADDR);
iic_init(IicPs, IIC_DEVICE_ID, IIC_SCLK_RATE);
// XIicPs_Reset(IicPs);
//Abort and return
XIicPs_Abort(IicPs);
return XST_SUCCESS;
}
