; -*- coding: utf-8 -*- ; Fast Forth For Texas Instrument MSP430FR5739 ; Tested on MSP-EXP430FR2355 launchpad ; ; Copyright (C) <2018> ; ; This program is free software: you can redistribute it and/or modify ; it under the terms of the GNU General Public License as published by ; the Free Software Foundation, either version 3 of the License, or ; (at your option) any later version. ; ; This program is distributed in the hope that it will be useful, ; but WITHOUT ANY WARRANTY; without even the implied warranty of ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ; GNU General Public License for more details. ; ; You should have received a copy of the GNU General Public License ; along with this program. If not, see . ; ====================================================================== ; INIT MSP-EXP430FR2355 board ; ====================================================================== ; J101 (7xjumper) ; "SBWTCK" ---> TEST ; "SBWTDIO" ---> RST ; "TXD" <--- P4.3 == UCA0TXD <-- UCA0TXDBUf ; "RXD" ---> P4.2 == UCA0RXD --> UCA0RXDBUF ; "3V3" <--> 3V3 ; "5V0" <--> 5V0 ; "GND" <--> GND ; SW1 -- P4.1 ; SW2 -- P2.3 ; LED1 - P1.0 (red) ; LED2 - P6.6 (green) ; I/O pins on J1: ; J1.1 - 3V3 ; J1.2 - P1.5 ; J1.3 - P1.6 ; J1.4 - P1.7 ; J1.5 - P3.6 ; J1.6 - P5.2 ; J1.7 - P4.5 ; J1.8 - P3.4 ; J1.9 - P1.3 ; J1.10 - P1.2 ; I/O pins on J3: ; J3.21 - 5V0 ; J3.22 - GND ; J3.23 - P1.4 A4 SEED ; J3.24 - P5.3 A11 ; J3.25 - P5.1 A9 ; J3.26 - P5.0 A8 ; J3.27 - P5.4 ; J3.28 - P1.1 A1 SEED ; J3.29 - P3.5 OA3O ; J3.30 - P3.1 OA2O ; I/O pins on J2: ; J2.11 - P3.0 ; J2.12 - P2.5 ; J2.13 - P4.4 ; J2.14 - P4.7 ; J2.15 - P4.6 ; J2.16 - RST ; J2.17 - P4.0 ; J2.18 - P2.2 ; J2.19 - P2.0 ; J2.20 - GND ; I/O pins on J4: ; J2.31 - P3.2 ; J2.32 - P3.3 ; J2.33 - P2.4 ; J2.34 - P3.7 ; J2.35 - P6.4 ; J2.36 - P6.3 ; J2.37 - P6.2 ; J2.38 - P6.1 ; J2.39 - P6.0 ; J2.40 - 2.1 ; LFXTAL XOUT- P2.6 ; LFXTAL XIN - P2.7 ; ====================================================================== ; MSP-EXP430FR2355 LAUNCHPAD <--> OUTPUT WORLD ; ====================================================================== ; +--4k7-< DeepRST switch <-- GND ; | ; P4.3 - UCA1 TXD J101.6 - <-+-> RX UARTtoUSB bridge ; P4.2 - UCA1 RXD J101.8 - <---- TX UARTtoUSB bridge ; P2.0 - RTS J2.19 - ----> CTS UARTtoUSB bridge (TERMINAL4WIRES) ; P2.1 - CTS J4.40 - <---- RTS UARTtoUSB bridge (TERMINAL5WIRES) ; P1.2 - UCB0 SDA J1.10 - <---> SDA I2C Master_Slave ; P1.3 - UCB0 SCL J1.9 - ----> SCL I2C Master_Slave ; P2.2 - J2.18 - <---- TSSOP32236 (IR RC5) ; P2.5 - J2.13 - <---- SD_CD (Card Detect) ; P4.4 - J2.12 - ----> SD_CS (Card Select) ; P4.5 - UCB1 CLK J1.7 - ----> SD_CLK ; P4.6 - 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 ; ---------------------------------------------------------------------- ; INIT order : WDT, GPIOs, FRAM, Clock, UARTs... ; ---------------------------------------------------------------------- ; ---------------------------------------------------------------------- ; POWER ON RESET AND INITIALIZATION : LOCK PMM_LOCKLPM5 ; ---------------------------------------------------------------------- ; BIS #LOCKLPM5,&PM5CTL0 ; unlocked by WARM ; ---------------------------------------------------------------------- ; POWER ON RESET AND INITIALIZATION : WATCHDOG TIMER A ; ---------------------------------------------------------------------- ; WDT code MOV #WDTPW+WDTHOLD+WDTCNTCL,&WDTCTL ; stop WDT ; ---------------------------------------------------------------------- ; POWER ON RESET AND INITIALIZATION : I/O ; ---------------------------------------------------------------------- ; ---------------------------------------------------------------------- ; POWER ON RESET AND INITIALIZATION : PORT1/2 ; ---------------------------------------------------------------------- ; reset state : Px{DIR,REN,SEL0,SEL1,SELC,IE,IFG,IV} = 0 ; Px{IN,OUT,IES} = ? ; PORTA usage ; 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) 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 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 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 (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_CD .equ 20h ; P2.5 SD_CDIN .equ P2IN ; ---------------------------------------------------------------------- ; POWER ON RESET AND INITIALIZATION : PORT3-4 ; ---------------------------------------------------------------------- ; reset state : Px{DIR,REN,SEL0,SEL1,SELC,IE,IFG,IV} = 0 ; Px{IN,OUT,IES} = ? ; 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 .IFDEF UCB1_SD SD_CS .equ 10h ; P4.4 SD_CSOUT .equ P4OUT SD_CSDIR .equ P4DIR 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 ; ---------------------------------------------------------------------- ; reset state : Px{DIR,REN,SEL0,SEL1,SELC,IE,IFG,IV} = 0 ; Px{IN,OUT,IES} = ? ; PORT6 usage ; P6.6 - LED2 green BIS.B #0BFh,&P6REN ; all pins with pull up resistors else P6.6 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 >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 .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 .ENDIF ; ---------------------------------------------------------------------- ; POWER ON RESET SYS config ; ---------------------------------------------------------------------- MOV #0A500h,&SYSCFG0 ; enable write MAIN + INFO ; ---------------------------------------------------------------------- ; POWER ON RESET AND INITIALIZATION : CLOCK SYSTEM ; ---------------------------------------------------------------------- ; CS code for MSP430FR2355 ; 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 .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 #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 #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 #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 #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 #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 #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 #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 #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 #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 #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 #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 #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 #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 #256,X .ELSEIF FREQUENCY = 20 ; MOV #100h,&CSCTL0 ; preset DCO = 256 ; MOV #00BDh,&CSCTL1 ; Set 20MHZ DCORSEL,enable DCOFTRIM=3h ,disable Modulation 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 #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 ; fCOCLKDIV = 32768 x 610+1) = 20.021 MHz ; measured : 20.xxxMHz ; 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 #100h,&CSCTL0 ; preset DCO = 256 ; MOV #00BFh,&CSCTL1 ; Set 24MHZ DCORSEL,enable DCOFTRIM=3h ,disable Modulation 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 #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 ; fCOCLKDIV = 32768 x 732+1) = 24.019 MHz ; measured : 23.xxxMHz ; 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 ; MOV #0000h,&CSCTL3 ; FLL select XT1, FLLREFDIV=0 (default value) MOV #0000h,&CSCTL4 ; ACLOCK select XT1, MCLK & SMCLK select DCOCLKDIV .ELSE 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 ; 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 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