I need to generate an accurate CPU clock using the internal MSP430F169
DCO. The 800K default SMCLK is very temperature sensitive, and does a
bad job generating the BAUD UART CLK. I want 115,200 baud, and the DCO
and internal resistors generate bad UART rates.
I can install a 0.1% external resistor if I need it. It seems like
there would be a table in the MSP PDF files that says that with 3.3V you
need external resistor value X to generate Y MHz. I can not find that
table.
I know that "controlling the DCO frequency of the MSP430x11x" SLAA047
exists. There must be an easier way the get an accurate 115,200 baud
rate with the DCO.
Is there an easy way to get SMCLK to run at 4 MHz or 8 MHz?
greg
