Apr30 2 Posted September 16, 2016 Share Posted September 16, 2016 I'd like UART to be as reliable as possible. Since baud rate 9600 is semi-standart I'd prefer to stick with that value. Which option has more precise timing? 1) LFXT1CLK (32k crystal) -> ACLK -> UART 2) DCO (1MHz) -> SMCLK -> UART slau144 says #1 has error rate 15.2% / 21.3% (TX/RX) and #2 has 0.7% / 0.8%. But DCO by itself is less precise than the crystal. So which one to choose? Quote Link to post Share on other sites
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