; (no problem with MSP430FR5xxx families without FLL).
; ===================================================================
- .IF FREQUENCY = 0.5
-
- MOV #0D6h,&CSCTL0 ; preset DCO = 0xD6 (measured value @ 0x180 ; to measure, type 0x180 @ U.)
-
- MOV #0001h,&CSCTL1 ; Set 1MHZ DCORSEL,disable DCOFTRIM,Modulation
+; .IF FREQUENCY = 0.5
+;
+; MOV #0D6h,&CSCTL0 ; preset DCO = 0xD6 (measured value @ 0x180 ; to measure, type 0x180 @ U.)
+;
+; MOV #0001h,&CSCTL1 ; Set 1MHZ DCORSEL,disable DCOFTRIM,Modulation
+;; ===================================== ; 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
+;
+; MOV #00B4h,&CSCTL0 ; preset DCO = 0xB4 (measured value @ 0x180 ; to measure, type HEX 0x180 ?)
+;
+; MOV #0001h,&CSCTL1 ; Set 1MHZ DCORSEL,disable DCOFTRIM,Modulation
+;; ===================================== ; 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
+; ; fCOCLKDIV = 32768 x (30+1) = 1.015 MHz ; measured : 1.013MHz
+;; 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 #00B4h,&CSCTL0 ; preset DCO = 0xB4 (measured value @ 0x180 ; to measure, type HEX 0x180 ?)
+;
+; MOV #0003h,&CSCTL1 ; Set 2MHZ DCORSEL,disable DCOFTRIM,Modulation
+;; ===================================== ; fCOCLKDIV = REFO x (FLLN+1)
+;; MOV #003Bh,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=3Bh
+; ; fCOCLKDIV = 32768 x (59+1) = 1.996 MHz ; measured : MHz
+; MOV #003Ch,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=3Ch
+; ; fCOCLKDIV = 32768 x (60+1) = 1.998 MHz ; measured : MHz
+;; 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 #00D2h,&CSCTL0 ; preset DCO = 0xD2 (measured value @ 0x180)
+;
+; MOV #0005h,&CSCTL1 ; Set 4MHZ DCORSEL,disable DCOFTRIM,Modulation
+;; ===================================== ; 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 #00F2h,&CSCTL0 ; preset DCO = 0xF2 (measured value @ 0x180)
+;
+; MOV #0007h,&CSCTL1 ; Set 8MHZ DCORSEL,disable DCOFTRIM,Modulation
+;; ===================================== ; fCOCLKDIV = REFO x (FLLN+1)
+;; MOV #00F2h,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=F2h
+; ; fCOCLKDIV = 32768 x (242+1) = 7.963 MHz ; measured : 7.943MHz
+;; 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
+; ; works with cp2102 and pl2303TA
+;; =====================================
+; MOV #128,X
+;
+; .ELSEIF FREQUENCY = 16
+;
+; MOV #0129h,&CSCTL0 ; preset DCO = 0x129 (measured value @ 0x180)
+;
+; MOV #000Bh,&CSCTL1 ; Set 16MHZ DCORSEL,disable DCOFTRIM,Modulation
+;; ===================================== ; fCOCLKDIV = REFO x (FLLN+1)
+;; MOV #01E6h,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=1E6h
+; ; fCOCLKDIV = 32768 x 486+1) = 15.958 MHz ; measured : 15.92MHz
+;; 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
+; ; fCOCLKDIV = 32768 x 488+1) = 16.023 MHz ; measured : 15.99MHz
+; MOV #01E9h,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=1E9h
+; ; fCOCLKDIV = 32768 x 489+1) = 16.056 MHz ; measured : 16.02MHz
+;; MOV #01EAh,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=1E9h
+; ; fCOCLKDIV = 32768 x 490+1) = 16.089 MHz ; measured : 16.02MHz
+;; =====================================
+; MOV #256,X
+;
+; .ELSEIF
+; .error "bad frequency setting, only 0.5,1,2,4,8,16 MHz"
+; .ENDIF
+;
+; .IFDEF LF_XTAL
+;; LFXIN : P4.1, LFXOUT : P4.2
+; MOV #0600h,&PBSEL0 ; SEL0 for only P4.1,P4.2
+;; MOV #0000h,&CSCTL3 ; FLL select XT1, FLLREFDIV=0 (default value)
+; MOV #0000h,&CSCTL4 ; ACLOCK select XT1, MCLK & SMCLK select DCOCLKDIV
+; .ELSE
+; MOV #0010h,&CSCTL3 ; FLL select REFCLOCK, FLLREFDIV=0
+;; MOV #0100h,&CSCTL4 ; ACLOCK select REFO, MCLK & SMCLK select DCOCLKDIV (default value)
+; .ENDIF
+;
+; BIS &SYSRSTIV,&SAVE_SYSRSTIV; store volatile SYSRSTIV preserving a pending request for DEEP_RST
+;; CMP #2,&SAVE_SYSRSTIV ; POWER ON ?
+;; JZ ClockWaitX ; yes
+;; .word 0759h ; no RRUM #2,X --> wait only 125 ms
+;ClockWaitX MOV #5209,Y ; wait 0.5s before starting after POR
+; ; ...because FLL lock time = 280 ms
+;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 )
+
+ .IF FREQUENCY = 0.5
+
+; MOV #058h,&CSCTL0 ; preset DCO = measured value @ 0x180 (88)
+; MOV #0001h,&CSCTL1 ; Set 1MHZ DCORSEL,disable DCOFTRIM,Modulation
+ 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 #100Fh,&CSCTL2 ; Set FLLD=1 (DCOCLKCDIV=DCO/2),set FLLN=0Fh
; fCOCLKDIV = 32768 x (15+1) = 0.524 MHz ; measured : MHz
; =====================================
- MOV #2,X
+ MOV #8,X
.ELSEIF FREQUENCY = 1
- MOV #00B4h,&CSCTL0 ; preset DCO = 0xB4 (measured value @ 0x180 ; to measure, type HEX 0x180 ?)
-
- MOV #0001h,&CSCTL1 ; Set 1MHZ DCORSEL,disable DCOFTRIM,Modulation
+; MOV #100h,&CSCTL0 ; preset DCO = 256
+; MOV #00B1h,&CSCTL1 ; Set 1MHZ DCORSEL,enable DCOFTRIM=3h ,disable Modulation
+ 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)
; MOV #001Dh,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=1Dh
; fCOCLKDIV = 32768 x (29+1) = 0.983 MHz ; measured : 0.989MHz
; MOV #001Fh,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=1Fh
; fCOCLKDIV = 32768 x (31+1) = 1.049 MHz ; measured : 1.046MHz
; =====================================
- MOV #4,X
+ MOV #16,X
.ELSEIF FREQUENCY = 2
- MOV #00B4h,&CSCTL0 ; preset DCO = 0xB4 (measured value @ 0x180 ; to measure, type HEX 0x180 ?)
-
- MOV #0003h,&CSCTL1 ; Set 2MHZ DCORSEL,disable DCOFTRIM,Modulation
+; MOV #100h,&CSCTL0 ; preset DCO = 256
+; MOV #00B3h,&CSCTL1 ; Set 2MHZ DCORSEL,enable DCOFTRIM=3h ,disable Modulation
+ 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)
; MOV #003Bh,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=3Bh
; fCOCLKDIV = 32768 x (59+1) = 1.996 MHz ; measured : MHz
; MOV #003Dh,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=3Dh
; fCOCLKDIV = 32768 x (61+1) = 2.031 MHz ; measured : MHz
; =====================================
- MOV #8,X
+ MOV #32,X
.ELSEIF FREQUENCY = 4
- MOV #00D2h,&CSCTL0 ; preset DCO = 0xD2 (measured value @ 0x180)
-
- MOV #0005h,&CSCTL1 ; Set 4MHZ DCORSEL,disable DCOFTRIM,Modulation
+; MOV #100h,&CSCTL0 ; preset DCO = 256
+; MOV #00B5h,&CSCTL1 ; Set 4MHZ DCORSEL,enable DCOFTRIM=3h ,disable Modulation
+ 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)
; MOV #0078h,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=78h
; fCOCLKDIV = 32768 x (120+1) = 3.965 MHz ; measured : 3.96MHz
; MOV #007Ah,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=7Ah
; fCOCLKDIV = 32768 x (122+1) = 4.030 MHz ; measured : 4.020MHz
; =====================================
- MOV #16,X
+ MOV #64,X
.ELSEIF FREQUENCY = 8
- MOV #00F2h,&CSCTL0 ; preset DCO = 0xF2 (measured value @ 0x180)
-
- MOV #0007h,&CSCTL1 ; Set 8MHZ DCORSEL,disable DCOFTRIM,Modulation
+; MOV #100h,&CSCTL0 ; preset DCO = 256
+; MOV #00B7h,&CSCTL1 ; Set 8MHZ DCORSEL,enable DCOFTRIM=3h ,disable Modulation
+ 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)
; MOV #00F2h,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=F2h
; fCOCLKDIV = 32768 x (242+1) = 7.963 MHz ; measured : 7.943MHz
; MOV #00F5h,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=F5h
; fCOCLKDIV = 32768 x (245+1) = 8.061 MHz ; measured : 8.042MHz
- ; works with cp2102 and pl2303TA
+
+; MOV #00F8h,&CSCTL2 ; don't work with cp2102 (by low value)
+; MOV #00FAh,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=FAh
+
; =====================================
- MOV #32,X
+ MOV #128,X
- .ELSEIF FREQUENCY = 16
+ .ELSEIF FREQUENCY = 12
- MOV #0129h,&CSCTL0 ; preset DCO = 0x129 (measured value @ 0x180)
+; MOV #100h,&CSCTL0 ; preset DCO = 256
+; MOV #00B9h,&CSCTL1 ; Set 12MHZ DCORSEL,enable DCOFTRIM=3h ,disable Modulation
+ 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)
+; MOV #016Ch,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=1E6h
+ ; fCOCLKDIV = 32768 x 364+1) = 12.960 MHz ; measured : 11.xxxMHz
+; 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
+ ; fCOCLKDIV = 32768 x 366+1) = 12.025 MHz ; measured : 12.xxxMHz
+; 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 #000Bh,&CSCTL1 ; Set 16MHZ DCORSEL,disable DCOFTRIM,Modulation
+; MOV #100h,&CSCTL0 ; preset DCO = 256
+; MOV #00BBh,&CSCTL1 ; Set 16MHZ DCORSEL,enable DCOFTRIM=3h ,disable Modulation
+ 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)
; MOV #01E6h,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=1E6h
; fCOCLKDIV = 32768 x 486+1) = 15.958 MHz ; measured : 15.92MHz
; 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 #01E8h,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=1E8h
; fCOCLKDIV = 32768 x 488+1) = 16.023 MHz ; measured : 15.99MHz
- MOV #01E9h,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=1E9h
+; MOV #01E9h,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=1E9h
; fCOCLKDIV = 32768 x 489+1) = 16.056 MHz ; measured : 16.02MHz
-; MOV #01EAh,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=1E9h
- ; fCOCLKDIV = 32768 x 490+1) = 16.089 MHz ; measured : 16.02MHz
; =====================================
- MOV #64,X
+ MOV #256,X
.ELSEIF
- .error "bad frequency setting, only 0.5,1,2,4,8,16 MHz"
+ .error "bad frequency setting, only 0.5,1,2,4,8,12,16 MHz"
.ENDIF
.IFDEF LF_XTAL
-; LFXIN : P4.1, LFXOUT : P4.2
- MOV #0600h,&PBSEL0 ; SEL0 for only P4.1,P4.2
; MOV #0000h,&CSCTL3 ; FLL select XT1, FLLREFDIV=0 (default value)
MOV #0000h,&CSCTL4 ; ACLOCK select XT1, MCLK & SMCLK select DCOCLKDIV
.ELSE
- MOV #0010h,&CSCTL3 ; FLL select REFCLOCK, FLLREFDIV=0
+ BIS #0010h,&CSCTL3 ; FLL select REFCLOCK
; MOV #0100h,&CSCTL4 ; ACLOCK select REFO, MCLK & SMCLK select DCOCLKDIV (default value)
.ENDIF
+ BIS &SYSRSTIV,&SAVE_SYSRSTIV; store volatile SYSRSTIV preserving a pending request for DEEP_RST
+ CMP #2,&SAVE_SYSRSTIV ; POWER ON ?
+ JZ ClockWaitX ; yes
+ .word 0749h ; no RRUM #1,X --> wait anyway 250 ms because FLL lock time = 200 ms
+ClockWaitX MOV #5209,Y ; wait 0.5s before starting after POR
- BIS &SYSRSTIV,&SAVE_SYSRSTIV; store volatile SYSRSTIV with preserving a pending request for DEEP_RST
- CMP #2,&SAVE_SYSRSTIV ; POWER ON ?
- JZ ClockWaitX ; yes : wait 800ms to stabilize power source
- .word 0359h ; no : RRUM #1,X --> wait still 400 ms...
- ; ...because FLL lock time = 280 ms
-
-ClockWaitX MOV #-1,Y ;
-ClockWaitY SUB #1,Y ; 3 cycles loop
- JNZ ClockWaitY ; 65535 = 196605 cycles delay = 200ms @ 1MHz
- SUB #1,X ;
- JNZ ClockWaitX ;
+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
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