CCS: MSP432P401R SPI Examples

What have you tried?
How are the arduino and the MSP432 hooked up? Have you tried a scope to see if communication is happening? Have you tried the various arduino SPI modes?

To Keith's point, some more information would be helpful. Are you familiar with these examples?

dev.ti.com/.../

dev.ti.com/.../

Regards,
Chris

The code I use in Arduino is:

#include <nRF24L01.h>
#include <RF24.h>
#include <RF24_config.h>
#include <SPI.h>

const int pinCE = 9;
const int pinCSN = 10;

RF24 radio(pinCE, pinCSN);

// Single radio pipe address for the 2 nodes to communicate.
const uint64_t pipe = 0x01;

char data[16]="Hello World" ;

void setup(void)
{
radio.begin();
radio.openWritingPipe(pipe);
}

void loop(void)
{
radio.write(data, sizeof data);
delay(1000);
}



And in MSP432:

#include "msp.h"
#include "driverlib.h"

volatile unsigned int RXData, w;

void loop_1();

int main(void)
{
WDT_A->CTL = WDT_A_CTL_PW | WDT_A_CTL_HOLD; // stop watchdog timer
P2->DIR |= BIT0; //P1.0 set as output
P1->SEL0 |= BIT5|BIT6|BIT7; //Set P1.5, P1.6, and P1.7 as SPI pins functionally

EUSCI_B0->CTLW0|=EUSCI_B_CTLW0_SWRST; //Put state machine in reset
EUSCI_B0->CTLW0=EUSCI_B_CTLW0_SWRST; //Keep the state machine in reset
EUSCI_B_CTLW0_SYNC | EUSCI_A_CTLW0_CKPL | EUSCI_B_CTLW0_MSB;
//Set as synchronous mode, set clock polarity high and MSB first and Slave

EUSCI_B0->CTLW0|= EUSCI_B_CTLW0_SSEL__ACLK; //ACLK
EUSCI_B0->BRW = 0x01;
EUSCI_B0->CTLW0&=~EUSCI_B_CTLW0_SWRST; //Initialize USCI state machine
EUSCI_B0->IE |= EUSCI_B_IE_RXIE; //Enable USCI_B0 RX interrupt

//Remain in LPM on exit from IS
//SCB->SCR|=SCB_SCR_SLEEPONEXIT_Msk;

//Ensures SLEEPONEXIT takes effect immediately
//_DSB();

//Enable eUSCI_B0 interrupt in NVIC module
NVIC->ISER[0]=1<<((EUSCIB0_IRQn)&31);

//Enter LPM0
//__sleep();
//__no_operation();

}

//SPI interrupt service routine
void EUSCIB0_IRQHandler(void)
{
//Wait till a character is receives
while(!(EUSCI_B0->IFG & EUSCI_B_IFG_RXIFG));
RXData = EUSCI_B0->RXBUF;
if(RXData==0x01)
{
P2->OUT ^= BIT0; //XOR P2.0;
NVIC->ISER[0]=~(1<<((EUSCIB0_IRQn)&31));

//for (w=200000; w>0; w--); //Delay
loop_1();
}
}
void loop_1()
{
EUSCI_B0->IFG &= ~EUSCI_B_IFG_RXIFG;
}

> EUSCI_B0->CTLW0=EUSCI_B_CTLW0_SWRST; //Keep the state machine in reset
> EUSCI_B_CTLW0_SYNC | EUSCI_A_CTLW0_CKPL | EUSCI_B_CTLW0_MSB;
This looks like a typo (I'm surprised you didn't get a warning "has no effect"). I suspect you meant:
> EUSCI_B0->CTLW0=EUSCI_B_CTLW0_SWRST|EUSCI_B_CTLW0_SYNC | EUSCI_A_CTLW0_CKPL | EUSCI_B_CTLW0_MSB;

Also: The nRF24L01 is a slave, so the MSP has to be the master. This means:
1) you need to set EUSCI_B_CTLW0_MST in CTLW0
2) it won't send anything spontaneously, you have to send something -- at minimum, a register number byte (with a R/W bit) -- in order to get anything from it.

It neither doesn't work.

I cannot comment on the Arduino code, but please let us know if you have questions about the device of the SDK examples.

Regards,
Chris