Dear Wei.Jetim Zhao I referred that sample code which you told, I have some doubts. Don't take it as silly questions..... it might be very basic for you... Let me ask my questions, They are saying the SELECT the DCO range is 16 Mhz, by setting the parameters as shown in below. UCSCTL0 = 0x0000; UCSCTL1 = DCORSEL_5; According to (SLAS655E) Device datasheet to select 16 Mhz DCO clock frequency range, the parameters should be DCORSELx = 4; DCOx = 31; MODx = 0; is it not correct? My second ques is : According to your point the SMCLK and MCLK is Defaultly giving 16 Mhz means then what is the effect of using DCO multiplier. ? UCSCTL2 = FLLD_1 + 244; Please clarify me those things... thanks in advance.
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