Zhu Hi, I tried to play a 3-min continuous 6 kHz tone with HiFi module but failed. The sample is out of range even with the lowest sampling rate: 44.1 kHz. This is what I used: GenerateSineWave(SF, 6000, 180)*0.1
Josh Hello Zhu, Each sound is limited to 1 million samples. For longer tones, you can use the synthesis functions: 'F', 'N' and 'W' commands here. Josh