I have a MSP430F2618 project with many PCBs in the field. I'm using the DCO running at 1mhz as the only clock source. Everything is working well except I'm getting an inordinate number of over run errors on the internal UART (UCA1xxx). Looking at the programming guide I see that running at 1mhz and using 115k baud results in some high error rates. Turns out I have an un-used 16mhz crystal on every board tied to Xin / Xout (Pins 8 & 9). I would like to use this crystal to drive ACLK and then use ACLK as my clock just for the UART. The question is - can I use the external crystal just for ACLK and leave the DCO running MCLK and SMCLK?
↧