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The 'divisor + 1' could well be correct, on successive clock ticks the counter register could easily be: 2, 1, 0, divisor, divisor-1 (etc).
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I agree this is what is usually done by all other processor I worked with: 'divisor' is always 1 unit less the real clock division, and this allows not wasting the zero value (or worse, making it an absurd value).
Anyway, as giraffe remarked in the original post, the information in the manual is somehow inconsistent:
The formula asserts you must use divisor=1 in order to get a baudrate=frequency/2. But the example regarding accelerated mode says you must use divisor=2.
If anyone is using the uart module and would like to the test the actual baudrate coming out with divisor=2, please clarify which is the correct formula.
Honored Contributor
