Hi Steve,

... why not, if no other using of T2 was done.
Its already on chip and no way to remove it.
So its not a shame to use it.


On using T1 the error was only 1.3%:

20e6 / 12 / 16 / 9600 = 10.6
-> use -11 as reload value
11 / 10.6 = 1.013

This is good enough, since errors until about 2.5% can be tolerated.


On using T2 the error was only 0.2%:

20e6 / 2 / 16 / 9600 = 65.1
-> use -65 as reload value
65.1 / 65 = 1.0016

And this give definitive no other working, than a baud rate crystal.


Peter