I want to perform ADC high-speed acquisition on IO pins. The solution is SAADC + TIMER + PPI + double buffer. The length of the buffer area is 100. The conversion cycle of SAADC is NRF_SAADC_ACQTIME_3US. The version of the SDK library is 15.2.0. The test found that the timer When the trigger acquisition period is higher than 20us, SAADC acquisition is normal. When the timer trigger acquisition period is lower than 20us, I observed that the first two bytes of the buffer area are abnormal. My guess is that the timer triggers SAADC relatively quickly and the double buffer switching is abnormal. How can I solve this trouble?
