Hi ,
It seems that you are using SPORT 3 Interrupt
>> interrupt(SIG_SP3, ISR_handleMeasurementDMA);//Set signal SP3 to trigger ISR function
Instead you have to use SPORT 4 interrupt as SPORT 4 is used as the RX
interrupt(SIG_SP4, ISR_handleMeasurementDMA);//Set signal SP3 to trigger ISR function
Let me know if this works.
Regards,
Mahesh