https://devzone.nordicsemi.com/f/nordic-q-a/40475/purpose-of-result-maxcntHi What is the role of RESULT.MAXCNT ? As the scan mode is based on the number of channels with PSELP != 0 isn&#39;t MAXCNT redundant ? Also, If declaring the buffer as buffers[2][100*4] (for 4 channels scan set): - Should the size parameter inen-USTelligent Community 13Thu, 15 Nov 2018 15:13:16 GMThttps://devzone.nordicsemi.com/thread/157569?ContentTypeID=1Thu, 15 Nov 2018 15:13:16 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9910a7fd-72c5-495d-9a27-446886a8e8b9run_ar<p>Hi,</p> <p>For detail on maxcnt and scan mode check the <a href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf52832.ps.v1.1/saadc.html?cp=2_1_0_36_4_3#saadc_operationmodes_scan">scan mode</a> and <a href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf52832.ps.v1.1/saadc.html?cp=2_1_0_36_5#saadc_easydma">EasyDMA </a>chapters in the documentation. See <span>Figure 2. Example of RAM placement (even RESULT.MAXCNT), channels 1, 2 and 5 enabled</span>.</p> <p>Looking at the SAADC example in SDK 15.2 the size parameter should be set to the number of samples in the buffer. 400 in your case.</p> <p>The size of the Result buffer is specified in the RESULT.MAXCNT register and the ADC will generate an END event when it has filled up the Result buffer, see <a href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf52832.ps.v1.1/saadc.html#saadc_easydma__fig">Figure 4</a>.</p><div style="clear:both;"></div>