nRF24L01+ link  to MSP430G2553 launchpad with RF24 library

Hello all,

I'm trying to set up a wireless connection between my raspberry pi and an TI MSP430G2 launchpad. I'm using RF24 library from TMRh20 at my raspberry pi and Enrf24 from spirilis with energia for my launchpad.

I want to send some analog data from launchpad to rPi using nRF24. Between rPis, nRF link is working. Aldo between launchpads also it's working. But my rPi is not able to receive the data send from launchpad.

Please find below the code I'm using :

In rPi :

#include <cstdlib>
#include <iostream>
#include <sstream>
#include <string>
#include <RF24/RF24.h>

using namespace std;

// Setup for GPIO 15 CE and CE0 CSN with SPI Speed @ 8Mhz
RF24 radio(RPI_BPLUS_GPIO_J8_15,RPI_BPLUS_GPIO_J8_24, BCM2835_SPI_SPEED_8MHZ);


// const uint64_t linkAddress = 0xE7D3F035FF;

int main(int argc, char** argv){

    // Setup and configure rf radio
    radio.begin();
    // set channel
    radio.setChannel( 76 );
    // set datarate
    radio.setDataRate( RF24_1MBPS );
    // optionally, increase the delay between retries & # of retries
    radio.setRetries(15,15);
    
    radio.openWritingPipe( linkAddress );
    radio.openReadingPipe( 1, linkAddress );
    
    // Dump the configuration of the rf unit for debugging
    radio.printDetails();
    
    radio.startListening();
    
    // forever loop
    while (1)
    {
        // if data ready
        if( radio.available() ) {
            unsigned long data = 0;
            // fetch the payload
            while( radio.available() ) {
                radio.read( &data, sizeof(unsigned long) );
            }
            printf( "Recieved data : %lu\n", data );
            delay( 500 );
        }
    }
    
    return 0;
}

Once I start this( after starting my lauchpad ), the output is like this

================ SPI Configuration ================
CSN Pin       = CE0 (PI Hardware Driven)
CE Pin       = Custom GPIO22
Clock Speed     = 8 Mhz
================ NRF Configuration ================
STATUS         = 0x0e RX_DR=0 TX_DS=0 MAX_RT=0 RX_P_NO=7 TX_FULL=0
RX_ADDR_P0-1     = 0xe7d3f035ff 0xe7d3f035ff
RX_ADDR_P2-5     = 0xc3 0xc4 0xc5 0xc6
TX_ADDR         = 0xe7d3f035ff
RX_PW_P0-6     = 0x20 0x20 0x00 0x00 0x00 0x00
EN_AA         = 0x3f
EN_RXADDR     = 0x02
RF_CH         = 0x4c
RF_SETUP     = 0x07
CONFIG         = 0x0e
DYNPD/FEATURE     = 0x00 0x00
Data Rate     = 1MBPS
Model         = nRF24L01+
CRC Length     = 16 bits
PA Power     = PA_MAX

And the program stays there -- meaning nothing is detected as received.

In my launchpad :

#include <Enrf24.h>
#include <nRF24L01.h>
#include <string.h>
#include <SPI.h>

Enrf24 radio(P2_0, P2_1, P2_2);  // P2.0=CE, P2.1=CSN, P2.2=IRQ
const uint8_t txaddr[] = { 0xE7, 0xD3, 0xF0, 0x35, 0xFF };

const int sensorPin = A4;
int sensorValue = 0;
int dataPacket = 0;

void setup() {
    // Serial.begin(9600);

    SPI.begin();
    SPI.setDataMode(SPI_MODE0);
    SPI.setBitOrder(MSBFIRST);

    radio.begin( 1000000, 76 );  // Defaults 1Mbps, channel 0, max TX power
    
    radio.setTXaddress((void*)txaddr);
  
    // set push button
    pinMode( P1_3, INPUT );
    // set leds
    pinMode( P1_0, OUTPUT );
    // do some startup animation
    for( int i = 0; i < 5; i++ ) {
        digitalWrite( P1_0, HIGH );
        delay( 250 );
        digitalWrite( P1_0, LOW );
        delay( 250 );
    }
    digitalWrite(P1_0, LOW);
}

void loop() {
  
    sensorValue = analogRead( sensorPin );
    dataPacket = map( sensorValue, 0, 1023, 0, 255 );
    
    radio.print( dataPacket );
    radio.flush();  // Force transmit (don't wait for any more data)

    delay(50);
    
}

Any clue what I'm doing wrong??

With thanks,

vish