; -*- coding: utf-8 -*- ; MSP_EXP430FR5994.inc ; Fast Forth For Texas Instrument MSP430FR5994 ; ; Copyright (C) <2014> ; ; 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 . ; ====================================================================== ; MSP_EXP430FR5994 board ; ====================================================================== ; ; J101 Target <---> eZ-FET ; GND 14-13 GND ; +5V 12-11 ; 3V3 10-9 ; P2.1 UCA0_RX 8-7 <---- TX UARTtoUSB bridge ; +--4k7-< DeepRST <-- GND ; | ; P2.0 UCA0_TX 6-5 <-+-> RX UARTtoUSB bridge ; /RST 4-3 ; TEST 2-1 ; ; ; P5.6 - sw1 <--- LCD contrast + (finger :-) ; P5.5 - sw2 <--- LCD contrast - (finger ;-) ; RST - sw3 ; ; P1.0 - led1 red ; P1.1 - led2 green ; ; J1 - left ext. ; 3v3 ; P1.2/TA1.1/TA0CLK/COUT/A2/C2 <--- OUT IR_Receiver (1 TSOP32236) ; P6.1/UCA3RXD/UCA3SOMI -------------------------> 4 LCD_RS ; P6.0/UCA3TXD/UCA3SIMO -------------------------> 5 LCD_R/W ; P6.2/UCA3CLK -------------------------> 6 LCD_EN0 ; P1.3/TA1.2/UCB0STE/A3/C3 ; P5.2/UCB1CLK/TA4CLK ; P6.3/UCA3STE ; P7.1/UCB2SOMI/UCB2SCL ---> SCL I2C MASTER/SLAVE ; P7.0/UCB2SIMO/UCB2SDA <--> SDA I2C MASTER/SLAVE ; ; J3 - left int. ; 5V ; GND ; P3.0/A12/C12 <------------------------> 11 LCD_DB4 ; P3.1/A13/C13 <------------------------> 12 LCD_DB5 ; P3.2/A14/C14 <------------------------> 13 LCD_DB5 ; P3.3/A15/C15 <------------------------> 14 LCD_DB7 ; P1.4/TB0.1/UCA0STE/A4/C4 ; P1.5/TB0.2/UCA0CLK/A5/C5 >---||--+--^/\/\/v--+----> 3 LCD_Vo (=0V6 without modulation) ; P4.7 ; P8.0 ; ; J4 - right int. ; P3.7/TB0.6 ; P3.6/TB0.5 ; P3.5/TB0.4/COUT ; P3.4/TB0.3/SMCLK ; P7.3/UCB2STE/TA4.1 ; P2.6/TB0.1/UCA1RXD/UCA1SOMI ; P2.5/TB0.0/UCA1TXD/UCA1SIMO ; P4.3/A11 ; P4.2/A10 RTS ----> CTS UARTtoUSB bridge (optional hardware control flow) ; P4.1/A9 CTS <---- RTS UARTtoUSB bridge (optional hardware control flow) ; ; J2 - right ext. ; GND ; P5.7/UCA2STE/TA4.1/MCLK ; P4.4/TB0.5 ; P5.3/UCB1STE ; /RST ; P5.0/UCB1SIMO/UCB1SDA ; P5.1/UCB1SOMI/UCB1SCL ; P8.3 ; P8.2 <--> SDA I2C SOFTWARE MASTER ; P8.1 <--> SCL I2C SOFTWARE MASTER ; ; SD_CARD ; P7.2/UCB2CLK <--- SD_CD ; P1.6/TB0.3/UCB0SIMO/UCB0SDA/TA0.0 ---> SD_MOSI ; P1.7/TB0.4/UCB0SOMI/UCB0SCL/TA1.0 <--- SD_MISO ; P4.0/A8 ---> SD_CS ; P2.2/TB0.2/UCB0CLK ---> SD_CLK ; ; XTAL LF 32768 Hz ; PJ.4/LFXIN ; PJ.5/LFXOUT ; ; XTAL HF ; PJ.6/HFXIN ; PJ.7/HFXOUT ; ----------------------------------------------- ; LCD config ; ----------------------------------------------- ; <-------+---0V0----------> 1 LCD_Vss ; >------ | --3V6-----+----> 2 LCD_Vdd ; | | ; |___ 470n --- ; ^ | --- ; / \ BAT54 | ; --- | ; 100n | 2k2 | ; TB0.2 >---||--+--^/\/\/v--+----> 3 LCD_Vo (=0V6 without modulation) ; -------------------------> 4 LCD_RS ; -------------------------> 5 LCD_R/W ; -------------------------> 6 LCD_EN0 ; <------------------------> 11 LCD_DB4 ; <------------------------> 12 LCD_DB5 ; <------------------------> 13 LCD_DB5 ; <------------------------> 14 LCD_DB7 ; ---------------------------------------------------------------------- ; INIT order : LOCK I/O, 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 ; ---------------------------------------------------------------------- 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 SD_SEL .equ PASEL1 ; word access, to configure UCB0 SD_REN .equ PAREN ; word access, to configure pullup resistors SD_BUS .equ 04C0h ; pins P2.2 as UCB0CLK, P1.6 as UCB0SIMO & P1.7 as UCB0SOMI ; PORT1 FastForth usage ; P1.0 - led1 red ; P1.1 - led2 green ; PORT2 FastForth usage Deep_RST_IN .equ P2IN ; TERMINAL TX pin as FORTH Deep_RST Deep_RST .equ 2 ; P2.0 = TX TERM_TXRX .equ 003h ; P2.1 = RX TERM_SEL .equ P2SEL1 TERM_REN .equ P2REN ; PORTx default wanted state : pins as input with pullup resistor BIS #3,&PADIR ; all pins 0 as input else LEDs MOV #0FFFCh,&PAOUT ; all pins high else LEDs BIC #3,&PAREN ; all pins 1 with pull resistors else LEDs ; ---------------------------------------------------------------------- ; POWER ON RESET AND INITIALIZATION : PORT3/4 ; ---------------------------------------------------------------------- ; reset state : Px{DIR,REN,SEL0,SEL1,SELC,IE,IFG,IV} = 0 ; Px{IN,OUT,IES} = ? ; PORT3 FastForth usage ; PORT4 FastForth usage SD_CS .equ 1 ; P4.0 as SD_CS SD_CSOUT .equ P4OUT SD_CSDIR .equ P4DIR .IFDEF TERMINAL4WIRES ; RTS output is wired to the CTS input of UART2USB bridge ; CTS is not used by FORTH terminal ; configure RTS as output high to disable RX TERM during start FORTH HANDSHAKOUT .equ P4OUT HANDSHAKIN .equ P4IN RTS .equ 4 ; P4.2 BIS #00400h,&PBDIR ; all pins as input else P4.2 (RTS) BIS #-1,&PBREN ; all input pins with resistor .IFDEF TERMINAL5WIRES CTS .equ 8 ; P4.3 MOV #0F7FFh,&PBOUT ; P4.2 (RTS) as output HIGH, P4.3 (CTS) I pull down, others I pull up, .ELSEIF MOV #-1,&PBOUT ; P4.2 (RTS) as output HIGH, others I pull up, .ENDIF ; TERMINAL5WIRES .ELSEIF ; PORTx default wanted state : pins as input with pullup resistor MOV #-1,&PBOUT ; OUT1 BIS #-1,&PBREN ; REN1 all pullup resistors .ENDIF ; TERMINAL4WIRES ; ---------------------------------------------------------------------- ; POWER ON RESET AND INITIALIZATION : PORT5/6 ; ---------------------------------------------------------------------- ; reset state : Px{DIR,REN,SEL0,SEL1,SELC,IE,IFG,IV} = 0 ; Px{IN,OUT,IES} = ? ; PORT5 FastForth usage ; P5.6 Switch S1 ; P5.5 Switch S2 SWITCHIN .set P5IN ; port s1 .set 020h ; P5.5 bit position ; PORT6 FastForth usage ; PORTx default wanted state : pins as input with pullup resistor MOV #-1,&PCOUT ; all pins output high BIS #-1,&PCREN ; all pins with pull resistors ; ---------------------------------------------------------------------- ; POWER ON RESET AND INITIALIZATION : PORT7/8 ; ---------------------------------------------------------------------- ; reset state : Px{DIR,REN,SEL0,SEL1,SELC,IE,IFG,IV} = 0 ; Px{IN,OUT,IES} = ? ; PORT7 FastForth usage SD_CD .equ 4 ; P7.2 as SD_CD SD_CDIN .equ P7IN ; PORT8 FastForth usage ; PORTx default wanted state : pins as input with pullup resistor MOV #-1,&PDOUT ; all pins output high BIS #-1,&PDREN ; all pins with pull resistors ; ---------------------------------------------------------------------- ; POWER ON RESET AND INITIALIZATION : PORTJ ; ---------------------------------------------------------------------- ; reset state : Px{DIR,REN,SEL0,SEL1,SELC,IE,IFG,IV} = 0 ; Px{IN,OUT,IES} = ? ; PORTJ FastForth usage ; PORTx default wanted state : pins as input with pullup resistor MOV.B #-1,&PJREN ; enable pullup/pulldown resistors BIS.B #-1,&PJOUT ; pullup resistors ; ---------------------------------------------------------------------- ; FRAM config ; ---------------------------------------------------------------------- .IF 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 ; ---------------------------------------------------------------------- ; POWER ON RESET AND INITIALIZATION : CLOCK SYSTEM ; ---------------------------------------------------------------------- ; DCOCLK: Internal digitally controlled oscillator (DCO). ; Startup clock system in max. DCO setting ~8MHz ; CS code for MSP430FR5969 MOV.B #CSKEY,&CSCTL0_H ; Unlock CS registers .IF FREQUENCY = 0.25 ; MOV #DCOFSEL1+DCOFSEL0,&CSCTL1 ; Set 8MHZ DCO setting (default value) MOV #DIVA_0 + DIVS_32 + DIVM_32,&CSCTL3 MOV #4,X .ELSEIF FREQUENCY = 0.5 MOV #0,&CSCTL1 ; Set 1MHZ DCO setting MOV #DIVA_2 + DIVS_2 + DIVM_2,&CSCTL3 ; set all dividers as 2 MOV #4,X .ELSEIF FREQUENCY = 1 MOV #0,&CSCTL1 ; Set 1MHZ DCO setting MOV #DIVA_0 + DIVS_0 + DIVM_0,&CSCTL3 ; set all dividers as 0 MOV #8,X .ELSEIF FREQUENCY = 2 MOV #DCOFSEL1+DCOFSEL0,&CSCTL1 ; Set 4MHZ DCO setting MOV #DIVA_0 + DIVS_2 + DIVM_2,&CSCTL3 MOV #16,X .ELSEIF FREQUENCY = 4 MOV #DCOFSEL1+DCOFSEL0,&CSCTL1 ; Set 4MHZ DCO setting MOV #DIVA_0 + DIVS_0 + DIVM_0,&CSCTL3 ; set all dividers as 0 MOV #32,X .ELSEIF FREQUENCY = 8 ; MOV #DCOFSEL2+DCOFSEL1,&CSCTL1 ; Set 8MHZ DCO setting (default value) MOV #DIVA_0 + DIVS_0 + DIVM_0,&CSCTL3 ; set all dividers as 0 MOV #64,X .ELSEIF FREQUENCY = 16 MOV #DCORSEL+DCOFSEL2,&CSCTL1 ; Set 16MHZ DCO setting MOV #DIVA_0 + DIVS_0 + DIVM_0,&CSCTL3 ; set all dividers as 0 MOV #128,X .ELSEIF .error "bad frequency setting, only 0.5,1,2,4,8,16 MHz" .ENDIF .IFDEF LF_XTAL MOV #SELA_LFXCLK+SELS_DCOCLK+SELM_DCOCLK,&CSCTL2 .ELSE MOV #SELA_VLOCLK+SELS_DCOCLK+SELM_DCOCLK,&CSCTL2 .ENDIF MOV.B #01h, &CSCTL0_H ; Lock CS Registers 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 #41666,Y ; wait 0.5s before starting after POWER ON ClockWaitY SUB #1,Y ; JNZ ClockWaitY ; 41666x3 = 125000 cycles delay = 125ms @ 1MHz SUB #1,X ; x 4 @ 1 MHZ JNZ ClockWaitX ; time to stabilize power source ( 1s ) ; ---------------------------------------------------------------------- ; POWER ON RESET AND INITIALIZATION : REF ; ---------------------------------------------------------------------- MOV #8, &REFCTL ; ---------------------------------------------------------------------- ; POWER ON RESET AND INITIALIZATION : RTC_C REGISTERS ; ---------------------------------------------------------------------- .IFDEF LF_XTAL ; LFXIN : PJ.4, LFXOUT : PJ.5 BIS.B #010h,&PJSEL0 ; SEL0 for only LFXIN MOV.B #0A5h,&RTCCTL0_H ; unlock RTC_C BIC.B #RTCHOLD,&RTCCTL1 ; Clear RTCHOLD = start RTC_C .ENDIF ; ---------------------------------------------------------------------- ; POWER ON RESET AND INITIALIZATION : SYS REGISTERS ; ---------------------------------------------------------------------- ; SYS code ; see COLD word