; LFXTAL XOUT- P2.6
; LFXTAL XIN - P2.7
-
-
-
; ======================================================================
; MSP-EXP430FR2355 LAUNCHPAD <--> OUTPUT WORLD
; ======================================================================
; P2.2 - J2.18 - <---- TSSOP32236 (IR RC5)
-; P2.5 - J2.12 - ----> SD_CS (Card Select)
-; P4.4 - J2.13 - <---- SD_CD (Card Detect)
+; P2.5 - J2.13 - <---- SD_CD (Card Detect)
+; P4.4 - J2.12 - ----> SD_CS (Card Select)
; P4.5 - UCB1 CLK J1.7 - ----> SD_CLK
-; P4.7 - UCB1 SOMI J2.14 - <---- SD_SDO
; P4.6 - UCB1 SIMO J2.15 - ----> SD_SDI
+; P4.7 - UCB1 SOMI J2.14 - <---- SD_SDO
; P6.0 - J4.39 - ----> SCL I2C Soft_Master
; P6.1 - J4.38 - <---> SDA I2C Soft_Master
; POWER ON RESET AND INITIALIZATION : PORT1/2
; ----------------------------------------------------------------------
-; LED1 - P1.0 (red)
-
-; SW2 - P2.3
-
; reset state : Px{DIR,REN,SEL0,SEL1,SELC,IE,IFG,IV} = 0 ; Px{IN,OUT,IES} = ?
; PORTA usage
- MOV #-1,&PAREN ; all inputs with pull resistors
- BIS #00001h,&PADIR ; all pins as input else LED1 as output
- MOV #0FFFEh,&PAOUT ; all pins with pullup resistors ekse LED1 = output low
-
+; P1.0 - LED1 red
+; UART RTS P2.0 - J2.19 ----> CTS UARTtoUSB bridge (TERMINAL4WIRES)
+; UART CTS P2.1 - J4.40 <---- RTS UARTtoUSB bridge (TERMINAL5WIRES)
+; P2.3 - SW2
+; P2.5 - J2.10 <---- SD_CD (Card Detect)
-; P2.0 - RTS J2.19 - ----> CTS UARTtoUSB bridge (TERMINAL4WIRES)
-; P2.1 - CTS J4.40 - <---- RTS UARTtoUSB bridge (TERMINAL5WIRES)
+ MOV #-1,&PAREN ; all inputs with pull resistors
+ MOV #1,&PADIR ; all pins as input else LED1 as output
+ MOV #0FFFEh,&PAOUT ; all pins with pullup resistors else LED1 = output low
+
+ .IFDEF UCA0_TERM
+; UCA0_RXD - P1.6 - J1.3 <---- TX UARTtoUSB bridge
+; UCA0_TXD - P1.7 - J1.4 ----> RX UARTtoUSB bridge
+RXD .equ 40h ; P1.6 = RXD
+TXD .equ 80h ; P1.7 = TXD + FORTH Deep_RST pin
+TERM_BUS .equ 0C0h
+TERM_IN .equ P1IN
+TERM_REN .equ P1REN
+TERM_SEL .equ P1SEL0
+ .ENDIF
.IFDEF TERMINAL4WIRES
-; RTS output must be wired to the CTS input of UART2USB bridge
-; configure RTS as output high to disable RX TERM during start FORTH
-; notice that this pin RTS may be permanently wired on SBWTCK (TEST) without disturbing SBW 2 wires programming
+; RTS output is wired to the CTS input of UART2USB bridge
+; configure RTS as output high (false) to disable RX TERM during start FORTH
HANDSHAKOUT .equ P2OUT
HANDSHAKIN .equ P2IN
-RTS .equ 1 ; P2.0 bit position
-
- BIS.B #1,&P2OUT ; P2.0 RTS as output high
-
+RTS .equ 1 ; P2.0
+ BIS.B #RTS,&P2DIR ; RTS as output high
.IFDEF TERMINAL5WIRES
-
; CTS input must be wired to the RTS output of UART2USB bridge
-; configure CTS as input low
-CTS .equ 2 ; P2.1 bit position
- BIC.B #2,&P2DIR ; CTS input pull down resistor
-
+; configure CTS as input low (true) to avoid lock when CTS is not wired
+CTS .equ 2 ; P2.1
+ BIC.B #CTS,&P2OUT ; CTS input pulled down
.ENDIF ; TERMINAL5WIRES
-
.ENDIF ; TERMINAL4WIRES
-; SD_CS - P2.5 (Card Select)
-SD_CS .equ 20h
-SD_CSOUT .equ P2OUT
-SD_CSDIR .equ P2DIR
+SD_CD .equ 20h ; P2.5
+SD_CDIN .equ P2IN
; ----------------------------------------------------------------------
; POWER ON RESET AND INITIALIZATION : PORT3-4
; ----------------------------------------------------------------------
-
-
-; P4.1 - SW1
-
; reset state : Px{DIR,REN,SEL0,SEL1,SELC,IE,IFG,IV} = 0 ; Px{IN,OUT,IES} = ?
-; PORT3 usage
- MOV.B #-1,&P3OUT ; OUT1 for all pins
- BIS.B #-1,&P3REN ; all pins with pull resistors
-
-; P4.2 - UCA1 RXD J101.8 - <---- TX UARTtoUSB bridge
-; P4.3 - UCA1 TXD J101.6 - <-+-> RX UARTtoUSB bridge
-
-Deep_RST_IN .equ P4IN
-Deep_RST .equ 8 ; = TX
-TERM_TXRX .equ 0Ch
-TERM_SEL .equ P4SEL0
+; PORTB usage
+
+; P4.1 - SW1
+; UCA1 RXD P4.2 - J101.8 <---- TX UARTtoUSB bridge
+; UCA1 TXD P4.3 - J101.6 ----> RX UARTtoUSB bridge
+; P4.4 - J2.9 ----> SD_CS(Card Select)
+; UCB1 CLK P4.5 - J1.7 ----> SD_CLK
+; UCB1 SIMO P4.6 - J2.15 ----> SD_SDI
+; UCB1 SOMI P4.7 - J2.14 <---- SD_SDO
+
+ MOV.B #-1,&PBOUT ; pullup resistors for all pins
+ BIS.B #-1,&PBREN ; all pins with pull resistors
+
+ .IFDEF UCA1_TERM
+; UCA1 RXD P4.2 - J101.8 <---- TX UARTtoUSB bridge
+; UCA1 TXD P4.3 - J101.6 ----> RX UARTtoUSB bridge
+RXD .equ 4 ; P4.2 = RXD
+TXD .equ 8 ; P4.3 = TXD + FORTH Deep_RST pin
+TERM_BUS .equ 0Ch
+TERM_IN .equ P4IN
TERM_REN .equ P4REN
+TERM_SEL .equ P4SEL0
+ .ENDIF
-; P4.4 - J2.13 - <---- SD_CD (Card Detect)
-SD_CD .equ 10h
-SD_CDIN .equ P4IN
+ .IFDEF UCB1_SD
+SD_CS .equ 10h ; P4.4
+SD_CSOUT .equ P4OUT
+SD_CSDIR .equ P4DIR
-; P4.5 - UCB1 CLK J1.7 - ----> SD_CLK
-; P4.6 - UCB1 SIMO J2.15 - ----> SD_SDI
-; P4.7 - UCB1 SOMI J2.14 - <---- SD_SDO
-
SD_SEL .equ PBSEL0 ; to configure UCB1
SD_REN .equ PBREN ; to configure pullup resistors
SD_BUS .equ 0E000h ; pins P4.5 as UCA1CLK, P4.6 as UCA1SIMO & P4.7 as UCA1SOMI
-
-
+ .ENDIF
; ----------------------------------------------------------------------
; POWER ON RESET AND INITIALIZATION : PORT5-6
; ----------------------------------------------------------------------
; PORT6 usage
-; LED2 - P6.6 (green)
+; P6.6 - LED2 green
BIS.B #0BFh,&P6REN ; all pins with pull up resistors else P6.6
- MOV.B #040h,&P6DIR
MOV.B #0BFh,&P6OUT ; OUT high for all pins else P6.6
-
+ MOV.B #040h,&P6DIR ; all pins with pullup resistors else LED2 = output low
; ----------------------------------------------------------------------
; FRAM config
; ----------------------------------------------------------------------
- .IF FREQUENCY = 16
-;NWAITS = 1
+ .IF (FREQUENCY >8 ) && ( FREQUENCY <= 16)
MOV.B #0A5h, &FRCTL0_H ; enable FRCTL0 access
MOV.B #10h, &FRCTL0 ; 1 waitstate @ 16 MHz
MOV.B #01h, &FRCTL0_H ; disable FRCTL0 access
- .ENDIF
-
- .IF FREQUENCY = 24
-;NWAITS = 2
+ .ELSEIF FREQUENCY > 16
MOV.B #0A5h, &FRCTL0_H ; enable FRCTL0 access
MOV.B #20h, &FRCTL0 ; 2 waitstate @ 24 MHz
MOV.B #01h, &FRCTL0_H ; disable FRCTL0 access
; POWER ON RESET SYS config
; ----------------------------------------------------------------------
-; SYS code
-; BIC #1,&SYSCFG0 ; enable write program in FRAM
- MOV #0A500h,&SYSCFG0 ; enable write MAIN and INFO
+ MOV #0A500h,&SYSCFG0 ; enable write MAIN + INFO
; ----------------------------------------------------------------------
; POWER ON RESET AND INITIALIZATION : CLOCK SYSTEM
; CS code for MSP430FR2355
-; to measure REFO frequency, output the ACLK on P1.1:
+; to measure SMCLK frequency, wires SMCLK on P1.0:
+; BIS.B #1,&P1SEL1
+; BIS.B #1,&P1DIR
+
+; to measure REFO frequency, wires ACLK on P1.1:
; BIS.B #2,&P1SEL1
; BIS.B #2,&P1DIR
-; result : REFO = xx.xxx kHz
.IF FREQUENCY = 0.5
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 #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
; MOV #00F5h,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=F5h
; fCOCLKDIV = 32768 x (245+1) = 8.061 MHz ; measured : 8.042MHz
-
-; MOV #00F8h,&CSCTL2 ; don't work with cp2102 (by low value)
-; MOV #00FAh,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=FAh
-
; =====================================
MOV #128,X
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
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 #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)
-; MOV #0260h,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=260h
- ; fCOCLKDIV = 32768 x 608+1) = 19.956 MHz ; measured : 19.xxxMHz
; 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 #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)
-; MOV #02DAh,&CSCTL2 ; Set FLLD=0 (DCOCLKCDIV=DCO),set FLLN=2DAh
- ; fCOCLKDIV = 32768 x 730+1) = 23.953 MHz ; measured : 23.xxxMHz
; 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
.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
+; 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
ClockWaitY SUB #1,Y ;1
OSDN Git Service
