There is no mention of ADC^PA in the Technical Reference Manual. I think PA just means "pre-amplifier". The only available amplifier is coupled to the Hall Sensor (TRM section 29.4.3).

Thanks palmerr23 ! I didn't think a task could solve my problem. I managed to generate exactly a single wave form in these conditions: On the I2S configuration, I created 4 buffers to match the exact data length: #define NUM_SAMPLES 160 #define DMA_BUF_CNT 4 #define DMA_BUF_LEN (NUM_SAMPLES / DMA_BU...

Hi palmerr23 , I'm a newbie too. I'm having a similar problem, I want to trigger a wave sample every now and then. It's a random pulse generator. I want the I2S to stop whenever the buffer's empty. However, as you said, the I2S IDF driver hijacks the I2S interrupts to keep refilling the buffer. I tr...