I have followed the Infineon-TLV493D-A1B6 3D Magnetic Sensor UserManual V. 1.03 to establish Bus configuration with multiple sensors, 3 TLV493D-A1B6 Sensors to be precise.
The 3 Sensors are connected via the Infineon S2Go Adapter to an Arduino UNO R3.
Using the Xensiv 3D Magnetic Sensor TLx493D Library for Arduino, i am able to get Data from the boards individually, but i am not able to get any Data when all 3 Boards are connected simultaneously, not even when i use the sample codes under Examples from Infineon found in the Xensiv 3D Magnetic Sensor TLx493D Library for Arduino.
Another wierd thing is that, when i successfully establish a connection with one sensor and data acquisition is ongoing, the code (my own code as well as the sample codes from infineon) seems to crash without any warning. I found out while Debugging that when the "getMagneticFieldAndTemperature" encounters an error, it exits the code/loop without any warning.
Also note that i have tried with and without the PullUp resistors on sensor 2 & sensor 3 as recommended in the Sample Code for reading multiple sensors.
Any assistance will be deeply appreciated. Thank you!
/** Project CPP includes. */
#include "TLx493D_inc.hpp"
using namespace ifx::tlx493d;
/** Declaration of three sensor objects with the same default address (A0).
*
* ATTENTION
* All Kit2Go/S2Go boards have pull-up resistors attached to the IIC SCL and SDA lines.
* In case of sensors dut2 and dut3 these resistors actually pull-down the SCL/SDA lines while
* the sensors are NOT powered. Therefore the pull-up resistors of dut2 and dut3 have to be removed
* for this example to work. Otherwise not even dut1 can be initialized properly. Alternatively,
* pull-up resistors for all devices are removed and external pull-ups are added to SCL/SDA.
*/
TLx493D_A1B6 dut1(Wire, TLx493D_IIC_ADDR_A0_e);
TLx493D_A1B6 dut2(Wire, TLx493D_IIC_ADDR_A0_e);
TLx493D_A1B6 dut3(Wire, TLx493D_IIC_ADDR_A0_e);
void setup() {
Serial.begin(115200);
delay(3000);
/** In this example we're using the XMC4700-Relax-Kit.
* Here we're using three GPIOs to power up the sensors, one
* after the other. This is done by defining the pins with the
* Board Support Class and its functions. The power up pins are
* enabled during the begin() call to the sensor object as done below.
*/
dut1.setPowerPin(5, OUTPUT, INPUT, HIGH, LOW, 0, 250000); // XMC4700 Relax P1.10
dut2.setPowerPin(6, OUTPUT, INPUT, HIGH, LOW, 0, 250000); // XMC4700 Relax XMC P1.11
dut3.setPowerPin(3, OUTPUT, INPUT, HIGH, LOW, 0, 250000); // XMC4700 Relax XMC P3.10
/** Here we're enabling one sensor after another. This procedure
* is necessary in order to avoid an interrupt to occur on the SCL line before
* interrupts are disabled in the sensor's begin() method. Additionally, the IIC address
* is changed from the default A0 to a distinct one for each sensor.
*/
dut1.begin(true, false, false, true);
dut1.setIICAddress(TLx493D_IIC_ADDR_A2_e); //
dut1.printRegisters();
dut2.begin();
dut2.setIICAddress(TLx493D_IIC_ADDR_A1_e);
dut2.printRegisters();
dut3.begin();
dut3.printRegisters();
/* Also tried Addressing the IIC-Buses as follows as recommended under the documentation of the TLV394D-A1B6 3D Magnetic Sensor
dut1.begin(true, false, false, true);
dut1.setIICAddress(TLx493D_IIC_ADDR_A3_e); //
dut1.printRegisters();
dut2.begin();
dut2.setIICAddress(TLx493D_IIC_ADDR_A2_e);
dut2.printRegisters();
dut3.begin();
dut3.setIICAddress(TLx493D_IIC_ADDR_A1_e);
dut3.printRegisters();
*/
Serial.println("setup done.\n");
}
/** In the loop we're reading out the temperature value as well as the magnetic values in X, Y, Z-direction
* of all three sensors. After that they're all printed to the serial output.
*/
void loop() {
double temp1 = 0.0, temp2 = 0.0, temp3 = 0.0;
double valX1 = 0, valY1 = 0, valZ1 = 0, valX2 = 0, valY2 = 0, valZ2 = 0, valX3 = 0, valY3 = 0, valZ3 = 0;
dut1.getMagneticFieldAndTemperature(&valX1, &valY1, &valZ1, &temp1);
dut1.printRegisters();
dut2.getMagneticFieldAndTemperature(&valX2, &valY2, &valZ2, &temp2);
dut2.printRegisters();
dut3.getMagneticFieldAndTemperature(&valX3, &valY3, &valZ3, &temp3);
dut3.printRegisters();
Serial.println("========================================");
Serial.print("Temperature of Sensor 1:\t");Serial.print(temp1);Serial.println(" °C");
Serial.print("Magnetic X-Value of Sensor 1:\t");Serial.print(valX1);Serial.println(" mT");
Serial.print("Magnetic Y-Value of Sensor 1:\t");Serial.print(valY1);Serial.println(" mT");
Serial.print("Magnetic Z-Value of Sensor 1:\t");Serial.print(valZ1);Serial.println(" mT");
Serial.println("----------------------------------------");
Serial.print("Temperature of Sensor 2:\t");Serial.print(temp2);Serial.println(" °C");
Serial.print("Magnetic X-Value of Sensor 2:\t");Serial.print(valX2);Serial.println(" mT");
Serial.print("Magnetic Y-Value of Sensor 2:\t");Serial.print(valY2);Serial.println(" mT");
Serial.print("Magnetic Z-Value of Sensor 2:\t");Serial.print(valZ2);Serial.println(" mT");
Serial.println("----------------------------------------");
Serial.print("Temperature of Sensor 3:\t");Serial.print(temp3);Serial.println(" °C");
Serial.print("Magnetic X-Value of Sensor 3:\t");Serial.print(valX3);Serial.println(" mT");
Serial.print("Magnetic Y-Value of Sensor 3:\t");Serial.print(valY3);Serial.println(" mT");
Serial.print("Magnetic Z-Value of Sensor 3:\t");Serial.print(valZ3);Serial.println(" mT");
Serial.println("========================================\n\n");
delay(2000);
}
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