Many thanks for the suggestion. I connected Pin 26 to the RX of the transceiver (sn65hvd230), so once the SOF rising is incoming it runs the ISR that do the i2s_adc_enable (see code below). In this way I can get a better syncronization (even if i loose some bit at beginning). At least it seems somet...

Hi All, I am using a fast sampling ADC toghether with I2S. The goal is sampling the CAN bus (CAN_L) once a new data frame is incoming in the queue. To get kind of syncronization I just do the i2s_adc_enable if there is a message in CAN message incoming, like reported below: if(xQueueReceive(CAN_cfg....