; BIS.B #2,&P1SEL1
; BIS.B #2,&P1DIR
- .IF FREQUENCY = 0.5
-
- MOV #1ED1h,&CSCTL0 ; preset MOD=31, DCO = measured value @ 0x180 (209)
- MOV #00B0h,&CSCTL1 ; Set 1MHZ DCORSEL,enable DCOFTRIM=3h ,enable Modulation to reduce EMI
-; ===================================== ; fCOCLKDIV = REFO x (FLLN+1)
-; MOV #100Dh,&CSCTL2 ; Set FLLD=1 (DCOCLKCDIV=DCO/2),set FLLN=0Dh
- ; fCOCLKDIV = 32768 x (13+1) = 0.459 MHz ; measured : MHz
- MOV #100Eh,&CSCTL2 ; Set FLLD=1 (DCOCLKCDIV=DCO/2),set FLLN=0Eh
- ; fCOCLKDIV = 32768 x (14+1) = 0.491 MHz ; measured : MHz
-; MOV #100Fh,&CSCTL2 ; Set FLLD=1 (DCOCLKCDIV=DCO/2),set FLLN=0Fh
- ; fCOCLKDIV = 32768 x (15+1) = 0.524 MHz ; measured : MHz
; =====================================
- MOV #8,X
-
- .ELSEIF FREQUENCY = 1
-
+ .IF FREQUENCY = 1
MOV #1EFFh,&CSCTL0 ; preset MOD=31, DCO=255
MOV #00B0h,&CSCTL1 ; Set 1MHZ DCORSEL,enable DCOFTRIM=3h ,enable Modulation to reduce EMI
-; ===================================== ; fCOCLKDIV = REFO x (FLLN+1)
+; ------------------------------------- ; fCOCLKDIV = REFO x (FLLN+1)
; MOV #001Dh,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=1Dh
; fCOCLKDIV = 32768 x (29+1) = 0.983 MHz ; measured : 0.989MHz
MOV #001Eh,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=1Eh
; MOV #001Fh,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=1Fh
; fCOCLKDIV = 32768 x (31+1) = 1.049 MHz ; measured : 1.046MHz
; =====================================
- MOV #16,X
-
.ELSEIF FREQUENCY = 2
-
MOV #1EFFh,&CSCTL0 ; preset MOD=31, DCO=255
MOV #00B2h,&CSCTL1 ; Set 2MHZ DCORSEL,enable DCOFTRIM=3h ,enable Modulation to reduce EMI
-; ===================================== ; fCOCLKDIV = REFO x (FLLN+1)
+; ------------------------------------- ; fCOCLKDIV = REFO x (FLLN+1)
; MOV #003Bh,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=3Bh
; fCOCLKDIV = 32768 x (59+1) = 1.966 MHz ; measured : MHz
MOV #003Ch,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=3Ch
; MOV #003Dh,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=3Dh
; fCOCLKDIV = 32768 x (61+1) = 2.031 MHz ; measured : MHz
; =====================================
- MOV #32,X
-
.ELSEIF FREQUENCY = 4
-
MOV #1EFFh,&CSCTL0 ; preset MOD=31, DCO=255
MOV #00B4h,&CSCTL1 ; Set 4MHZ DCORSEL,enable DCOFTRIM=3h ,enable Modulation to reduce EMI
-; ===================================== ; fCOCLKDIV = REFO x (FLLN+1)
+; ------------------------------------- ; fCOCLKDIV = REFO x (FLLN+1)
; MOV #0078h,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=78h
; fCOCLKDIV = 32768 x (120+1) = 3.965 MHz ; measured : 3.96MHz
-
MOV #0079h,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=79h
; fCOCLKDIV = 32768 x (121+1) = 3.997 MHz ; measured : 3.99MHz
-
; MOV #007Ah,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=7Ah
; fCOCLKDIV = 32768 x (122+1) = 4.030 MHz ; measured : 4.020MHz
; =====================================
- MOV #64,X
-
.ELSEIF FREQUENCY = 8
-
MOV #1EFFh,&CSCTL0 ; preset MOD=31, DCO=255
MOV #00B6h,&CSCTL1 ; Set 8MHZ DCORSEL,enable DCOFTRIM=3h ,enable Modulation to reduce EMI
-; ===================================== ; fCOCLKDIV = REFO x (FLLN+1)
+; ------------------------------------- ; fCOCLKDIV = REFO x (FLLN+1)
MOV #00F3h,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=F3h
; fCOCLKDIV = 32768 x (243+1) = 7.995 MHz ; measured : 7.976MHz
; MOV #00F4h,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=F4h
; fCOCLKDIV = 32768 x (244+1) = 8.028 MHz ; measured : 8.009MHz
-
; MOV #00F5h,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=F5h
; fCOCLKDIV = 32768 x (245+1) = 8.061 MHz ; measured : 8.042MHz
; =====================================
- MOV #128,X
-
.ELSEIF FREQUENCY = 12
-
MOV #1EFFh,&CSCTL0 ; preset MOD=31, DCO=255
MOV #00B8h,&CSCTL1 ; Set 12MHZ DCORSEL,enable DCOFTRIM=3h ,enable Modulation to reduce EMI
-; ===================================== ; fCOCLKDIV = REFO x (FLLN+1)
+; ------------------------------------- ; fCOCLKDIV = REFO x (FLLN+1)
MOV #016Dh,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=1E7h
; fCOCLKDIV = 32768 x 365+1) = 11.993 MHz ; measured : 11.xxxMHz
; MOV #016Eh,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=1E8h
; MOV #016Fh,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=1E9h
; fCOCLKDIV = 32768 x 367+1) = 12.058 MHz ; measured : 12.xxxMHz
; =====================================
- MOV #192,X
-
.ELSEIF FREQUENCY = 16
-
MOV #1EFFh,&CSCTL0 ; preset MOD=31, DCO=255
MOV #00BAh,&CSCTL1 ; Set 16MHZ DCORSEL,enable DCOFTRIM=3h ,enable Modulation to reduce EMI
-; ===================================== ; fCOCLKDIV = REFO x (FLLN+1)
+; ------------------------------------- ; fCOCLKDIV = REFO x (FLLN+1)
; MOV #01E7h,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=1E7h
; fCOCLKDIV = 32768 x 487+1) = 15.991 MHz ; measured : 15.95MHz
MOV #01E8h,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=1E8h
; MOV #01E9h,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=1E9h
; fCOCLKDIV = 32768 x 489+1) = 16.056 MHz ; measured : 16.02MHz
; =====================================
- MOV #256,X
-
.ELSEIF FREQUENCY = 20
-
MOV #1EFFh,&CSCTL0 ; preset MOD=31, DCO=255
MOV #00BCh,&CSCTL1 ; Set 20MHZ DCORSEL,enable DCOFTRIM=3h ,enable Modulation to reduce EMI
-; ===================================== ; fCOCLKDIV = REFO x (FLLN+1)
+; ------------------------------------- ; fCOCLKDIV = REFO x (FLLN+1)
; MOV #0261h,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=261h
; fCOCLKDIV = 32768 x 609+1) = 19.988 MHz ; measured : 19.xxxMHz
MOV #0262h,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=262h
; MOV #0263h,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=263h
; fCOCLKDIV = 32768 x 611+1) = 20.054 MHz ; measured : 20.xxxMHz
; =====================================
- MOV #320,X
-
.ELSEIF FREQUENCY = 24
-
MOV #1EFFh,&CSCTL0 ; preset MOD=31, DCO=255
MOV #00BEh,&CSCTL1 ; Set 24MHZ DCORSEL,enable DCOFTRIM=3h ,enable Modulation to reduce EMI
-; ===================================== ; fCOCLKDIV = REFO x (FLLN+1)
+; ------------------------------------- ; fCOCLKDIV = REFO x (FLLN+1)
; MOV #02DBh,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=2DBh
; fCOCLKDIV = 32768 x 731+1) = 23.986 MHz ; measured : 23.xxxMHz
MOV #02DCh,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=2DCh
; MOV #02DDh,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=2DDh
; fCOCLKDIV = 32768 x 733+1) = 24.051 MHz ; measured : 24.xxxMHz
; =====================================
- MOV #384,X
-
.ELSEIF
.error "bad frequency setting, only 0.5,1,2,4,8,12,16,20,24 MHz"
.ENDIF
-
.IFDEF LF_XTAL
; because LOCKLPM5 is ON, XT1 is replaced by REFO automaticaly until WARM clears LOCKLPM5
; MOV #0000h,&CSCTL3 ; FLL select XT1, FLLREFDIV=0 (default value)
; MOV #0100h,&CSCTL4 ; ACLOCK select REFOCLK, MCLK & SMCLK select DCOCLKDIV (default value)
.ENDIF
-
- BIS &SYSRSTIV,&SAVE_SYSRSTIV; store volatile SYSRSTIV preserving a pending request for DEEP_RST
-; MOV &SAVE_SYSRSTIV,TOS ;
-; CMP #2,TOS ; POWER ON ?
-; JZ ClockWaitX ; yes
-; RRUM #1,X ; wait only 250 ms
-ClockWaitX MOV #5209,Y ; wait 0.5s before starting after POR
- ; ...because FLL lock time = 280 ms
+ MOV #92,X ; 96* 3 ms = 288 ms delay, because FLL lock time = 200 ms
+ClockWaitX MOV &FREQ_KHZ,Y ;
ClockWaitY SUB #1,Y ;1
- JNZ ClockWaitY ;2 5209x3 = 15625 cycles delay = 15.625ms @ 1MHz
- SUB #1,X ; x 32 @ 1 MHZ = 500ms
- JNZ ClockWaitX ; time to stabilize power source ( 500ms )
-
-;WAITFLL BIT #300h,&CSCTL7 ; wait FLL lock
-; JNZ WAITFLL
-
+ JNZ ClockWaitY ;2 FREQ_KHZ x 3 ==> 3ms
+ SUB #1,X ;
+ JNZ ClockWaitX ;
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