#ifdef RO_PINOSC_TA0
/***************************************************************************//**
* @brief RO method capactiance measurement using PinOsc IO, and TimerA0
*
* Schematic Description:
*
* \n element-----+->Px.y
*
* \n The measurement window is accumulation_cycles/ACLK. The ACLK is
* used to generate a capture event via the internal connection CCIOB.
* The counts within the TA0R that have accumulated during the
* measurement window represents the capacitance of the element.
*
* @param group Pointer to the structure describing the Sensor to be measured
* @param counts Pointer to where the measurements are to be written
* @return none
******************************************************************************/
void TI_CTS_RO_PINOSC_TA0_HAL(const struct Sensor *group,uint16_t *counts)
{
uint8_t i;
uint16_t j;
//** Context Save
// TIMERA0: TA0CTL, TA0CCTL0
// Ports: PxSEL, PxSEL2
uint16_t contextSaveTA0CTL,contextSaveTA0CCTL0,contextSaveTA0CCR0;
uint8_t contextSaveSel,contextSaveSel2;

contextSaveTA0CTL = TA0CTL;
contextSaveTA0CCTL0 = TA0CCTL0;
contextSaveTA0CCR0 = TA0CCR0;

//** Setup Measurement timer***************************************************
// Choices are TA0,TA1,TB0,TB1,TD0,TD1 these choices are pushed up into the
// capacitive touch layer.

// Configure and Start Timer
TA0CTL = TASSEL_3+MC_2; // TACLK, cont mode
for (i =0; i< (group->numElements); i++)
{
// Context Save
contextSaveSel = *((group->arrayPtr)->inputPxselRegister);
contextSaveSel2 = *((group->arrayPtr[i])->inputPxsel2Register);
// Configure Ports for relaxation oscillator
j = (group->accumulationCycles);
*((group->arrayPtr[i])->inputPxselRegister) &= ~((group->arrayPtr[i])->inputBits);
*((group->arrayPtr[i])->inputPxsel2Register) |= ((group->arrayPtr[i])->inputBits);
TA0CCTL0 = CM_3+CCIS_1+CAP; // Pos&Neg,ACLK (CCI0B),Cap
while(!(TA0CCTL0 & CCIFG)); // wait for capture event
TA0CTL |= TACLR; // Clear Timer_A TAR
while(j--)
{
TA0CCTL0 = CM_3+CCIS_1+CAP; // Pos&Neg,ACLK (CCI0B),Cap
while(!(TA0CCTL0 & CCIFG)); // wait for capture event
}
counts[i] = TA0CCR0; // Save result
TA0CTL = TASSEL_3+MC_2;
// Context Restore
*((group->arrayPtr[i])->inputPxselRegister) = contextSaveSel;
*((group->arrayPtr[i])->inputPxsel2Register) = contextSaveSel2;
}
// End Sequence
// Context Restore
TA0CTL = contextSaveTA0CTL;
TA0CCTL0 = contextSaveTA0CCTL0;
TA0CCR0 = contextSaveTA0CCR0;
}
#endif