ArduinoCore-arc32 can't measure the rssi while being connected

*/ #include <CurieBLE.h>

/* This sketch example works with IMUBleNotification.ino

IMUBleNotification.ino will send notification to this central sketch. This sketch will receive the notifications and output the received data in the serial monitor. It also illustrates using a non-typed characteristic. Set the baud rate to 115200 on the serial monitor to accomodate the speed of constant data updates from IMU subsystem. */

#define LED_PIN 13 #define MAX_IMU_RECORD 1

// define a structure that will serve as buffer for holding IMU data

typedef struct { int index; unsigned int slot[3]; } imuFrameType;

imuFrameType imuBuf[MAX_IMU_RECORD];

void setup() { // This is set to higher baud rate because accelerometer data changes very quickly Serial.begin(9600); // initialize serial communication while (!Serial); pinMode(LED_PIN, OUTPUT); // initialize the LED on pin 13 to indicate when a central is connected

/* Now activate the BLE device.  It will start continuously transmitting BLE
 advertising packets and will be visible to remote BLE central devices
 until it receives a new connection */
BLE.begin();
Serial.println(BLE.address());

BLE.scanForName("LED");

}

void loop() { BLEDevice peripheral = BLE.available(); //pr_debug(LOG_MODULE_BLE, "%s-%d",FUNCTION, LINE); if (peripheral) { Serial.println(peripheral.address()); BLE.stopScan();

    delay (1000);
    // central connected to peripheral
    controlImu(peripheral);
    delay (4000);
    BLE.scanForName("LED");
}

}

void controlImu(BLEDevice peripheral) { static bool discovered = false; // connect to the peripheral Serial.print("Connecting ... "); Serial.println(peripheral.address());

if (peripheral.connect())
{
    Serial.print("Connected: ");
    Serial.println(peripheral.address());
}
else
{
    Serial.println("Failed to connect!");
    return;
}



peripheral.discoverAttributes();

BLECharacteristic bleImuChar = peripheral.characteristic("F7580003-153E-D4F6-F26D-43D8D98EEB13");

if (!bleImuChar)
{
    peripheral.disconnect();
    Serial.println("Peripheral does not have IMU characteristic!");
    delay(5000);
    return;
} 
  bleImuChar.subscribe();
  

discovered = false;
while (peripheral.connected())
{
    if (bleImuChar.valueUpdated())
    {
        const unsigned char *cvalue = bleImuChar.value();
        const imuFrameType *value = (const imuFrameType *)cvalue;
        Serial.print("\r\nCharacteristic event, written: ");
        Serial.print(value->index);
        Serial.print("\t");
        Serial.print(value->slot[0]);
        Serial.print("\t");
        Serial.print(value->slot[1]);
        Serial.print("\t");
        Serial.println(value->slot[2]);

// print the RSSI Serial.print("RSSI: "); Serial.println(peripheral.rssi()); } } Serial.print("Disconnected"); Serial.println(peripheral.address()); }

.................................................................. In that code I was just trying to measure the rssi of same peripheral the central is connected to and receives information regarding the Accelometer and gyro sensors.

but it doesn't work. it gives only same value. the peripheral has to be disconnected from the central so that the rssi to be rightly measured. Is there any explanation or solution for that?.