# UART baud-rate divider and error
# Scope: Integer-divider UART baud error; oversampling factor supplied.
# Status: illustrative worked example; engineering review pending.
# Inputs are example values. Checks are editable example requirements, not standards.

clock = 16000000 Hz
baud = 115200 Hz
oversampling = 16

divider := round(clock/(oversampling*baud))
actual := clock/(oversampling*divider) [Hz]
relativeError := abs(actual-baud)/baud

check baud error budget: relativeError <= 0.03

scenario alternative: clock = 1.28e+07 Hz