I running the example "ADC_DAC Playback" and use the adc data to rfft but it gets the following error:
A non-recoverable error or exception has occurred.Description: An illegal instruction has been detected.General Type: RunTimeErrorSpecific Type: IllOpCodeDetectedError PC: 0x00126896
rfft (inSignal, r_temp, r_output, twiddle_table, 1, (int32_t)FFTSIZE);
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Could you please share us your example project along with the steps to reproduce your issue. This will help us to assist you further.