MSP430F5438A: MSP430F5438A: MSP430ware SPI example project usci_a_spi_ex1_master sets the Slave in Master Out and SPI CLock as Input

Hi Clemens,

Thanks for your reply. I have modified the example code as follows, I am facing another problem:

(Below is snippet for just the main function; UCMODE_2 is used; I don't see the UCA0STE going active and hence no SPI communication):

void main(void)
{
//Stop watchdog timer
WDT_A_hold(WDT_A_BASE);

//P3.5 UCA0SOMI as input
GPIO_setAsPeripheralModuleFunctionInputPin(
GPIO_PORT_P3,
GPIO_PIN5
);
//P3.0 UCA0CLK, P3.3 UCA0STE and P3.4 UCA0SIMO as inputs
GPIO_setAsPeripheralModuleFunctionOutputPin(
GPIO_PORT_P3,
GPIO_PIN0 + GPIO_PIN3 + GPIO_PIN4
);

//Initialize Master
USCI_A_SPI_initMasterParam param = {0};
param.selectClockSource = USCI_A_SPI_CLOCKSOURCE_SMCLK;
param.clockSourceFrequency = UCS_getSMCLK();
param.desiredSpiClock = SPICLK;
param.msbFirst = USCI_A_SPI_MSB_FIRST;
param.clockPhase = USCI_A_SPI_PHASE_DATA_CHANGED_ONFIRST_CAPTURED_ON_NEXT;
param.clockPolarity = USCI_A_SPI_CLOCKPOLARITY_INACTIVITY_HIGH;
returnValue = USCI_A_SPI_initMaster(USCI_A0_BASE, &param);

if(STATUS_FAIL == returnValue)
{
return;
}

//Enable SPI module
USCI_A_SPI_enable(USCI_A0_BASE);

//Enable Receive interrupt
USCI_A_SPI_clearInterrupt(USCI_A0_BASE,
USCI_A_SPI_RECEIVE_INTERRUPT);
USCI_A_SPI_enableInterrupt(USCI_A0_BASE,
USCI_A_SPI_RECEIVE_INTERRUPT);

//Wait for slave to initialize
__delay_cycles(100);

//Initialize data values
transmitData = 0x00;

//CS is in UCMODE_2, so Active High for Master
GPIO_setOutputHighOnPin(
GPIO_PORT_P3,
GPIO_PIN3
);

//USCI_A0 TX buffer ready?
while(!USCI_A_SPI_getInterruptStatus(USCI_A0_BASE,
USCI_A_SPI_TRANSMIT_INTERRUPT))
{
;
}

//Transmit Data to slave
USCI_A_SPI_transmitData(USCI_A0_BASE, transmitData);

//CPU off, enable interrupts
__bis_SR_register(LPM0_bits + GIE);
}