; -*- coding: utf-8 -*-
-
-
+;
; ---------------------------------------------------
; TERMINAL driver for I2CFastForth target (I2C Slave)
; ---------------------------------------------------
-
-; hardware Software
-; I2C Slave I2C Master
-;
-; I2CFastForth target SCL SDA connected to: SCL SDA of UART to I2C bridge
-; ------------------ ---- ---- ---- ---- ------------------
-; MSP_EXP430FR5739 P1.7 P1.6 P4.1 P4.0 MSP_EXP430FR5739
-; MSP_EXP430FR5969 P1.7 P1.6 P1.3 P1.2 MSP_EXP430FR5969
-; MSP_EXP430FR5994 P7.1 P7.0 P8.1 P8.2 MSP_EXP430FR5994
-; MSP_EXP430FR6989 P1.7 P1.6 P1.5 P1.3 MSP_EXP430FR6989
-; MSP_EXP430FR4133 P5.3 P5.2 P8.3 P8.2 MSP_EXP430FR4133
-; CHIPSTICK_FR2433 P1.3 P1.2 P2.2 P2.0 CHIPSTICK_FR2433
-; MSP_EXP430FR2433 P1.3 P1.2 P3.1 P3.2 MSP_EXP430FR2433
-; MSP_EXP430FR2355 P1.3 P1.2 P3.3 P3.2 MSP_EXP430FR2355
-; LP_MSP430FR2476 P4.3 P4.4 P3.3 P3.2 LP_MSP430FR2476
+; |
+; | GND------------------------------GND
+; | Vcc-------------o---o------------Vcc
+; | | |
+; | 3 3
+; | k k
+; v 3 3
+; I2C_FastForth | | UARTI2C +---------------------------------------+
+; hardware +--------------|---o-------------+ Software | +-----------------------------+ |
+; I2C Slave | +-------o----------+ | I2C Master | | +------(option)-----+ | |
+; | | | | | | | | | |
+; I2CFastForth target SCL SDA connected to: SDA SCL of UART to I2C bridge TXD RXD RTS connected to : CTS TXD RXD UARTtoUSB <--> COMx <--> TERMINAL
+; ------------------ ---- ---- ---- ---- ------------------ --- --- --- --- --- --- -------------------------------------
+; MSP_EXP430FR5739 P1.7 P1.6 P4.0 P4.1 MSP_EXP430FR5739 P2.0 P2.1 P2.2 PL2303TA TERATERM.EXE
+; MSP_EXP430FR5969 P1.7 P1.6 P1.2 P1.3 MSP_EXP430FR5969 P2.0 P2.1 P4.1 PL2303HXD
+; MSP_EXP430FR5994 P7.1 P7.0 P8.2 P8.1 MSP_EXP430FR5994 P2.0 P2.1 P4.2 CP2102
+; MSP_EXP430FR6989 P1.7 P1.6 P1.3 P1.5 MSP_EXP430FR6989 P3.4 P3.5 P3.0
+; MSP_EXP430FR4133 P5.3 P5.2 P8.2 P8.3 MSP_EXP430FR4133 P1.0 P1.1 P2.3
+; CHIPSTICK_FR2433 P1.3 P1.2 P2.0 P2.2 CHIPSTICK_FR2433 P1.4 P1.5 P3.2
+; MSP_EXP430FR2433 P1.3 P1.2 P3.2 P3.1 MSP_EXP430FR2433 P1.4 P1.5 P1.0
+; MSP_EXP430FR2355 P1.3 P1.2 P3.2 P3.3 MSP_EXP430FR2355 P4.3 P4.2 P2.0
+; LP_MSP430FR2476 P4.3 P4.4 P3.2 P3.3 LP_MSP430FR2476 P1.4 P1.5 P6.1
;
; don't forget to link 3V3 and GND on each side and to add 3k3 pullup resistors on SDA and SCL.
-
+;
;-------------------------------------------------------------------------------
-; I2C TERMINAL: QABORT ABORT_TERM INI_TERM COLD_TERM RXON I2C_CTRL_CH
+; I2C TERMINAL: QABORT ABORT_TERM INIT_TERM COLD_TERM RXON I2C_CTRL_CH
;-------------------------------------------------------------------------------
-; define run-time part of ABORT"
-;Z ?ABORT xi f c-addr u -- abort & print msg.
-; FORTHWORD "?ABORT"
-QABORT CMP #0,2(PSP) ; -- f c-addr u test flag f
- JNZ ABORT_TERM ;
-THREEDROP ADD #4,PSP ; -- u
- MOV @PSP+,TOS ; --
- MOV @IP+,PC ;
-; ----------------------------------;
-ABORT_TERM ; exit from downloading then reinit some variables via INI_FORTH
-; ----------------------------------;
- MOV.B #2,Y ; -- f c-addr u ABORT request Ctrl_Char = $02
- CALL #I2C_CTRL_CH ; send it to I2C_Master which will run QABORT_TERM on its side
-; ----------------------------------;
- PUSH TOS ;
- CALL #INI_FORTH ;
-; ----------------------------------;
-; display line of error if NOECHO ;
-; ----------------------------------;
- .word lit,LINE,FETCH ; -- f c-addr u line fetch line number before set ECHO !
- .word ECHO ;
- .word RFROM ; -- f c-addr u line u
- .word QFBRAN,ABORT_END; display nothing if ABORT" with empty string
- .word XSQUOTE ; -- f c-addr u line
+
+; ?ABORT defines run-time part of ABORT"
+QABORT CMP #0,2(PSP) ; -- f addr cnt if f is true abort current process then display ABORT" msg.
+ JNZ ABORT_TERM ; see forthMSP430FR_TERM_xxxx.asm below
+THREEDROP ADD #4,PSP ; -- cnt
+ JMP DROP ;
+; ----------------------------------;
+I2C_ABORT_TERM ; exit from downloading then reinit FORTH variables via INIT_FORTH
+; ----------------------------------;
+ABORT_TERM MOV #2,Y ; send $02 as Ctrl_Char ?ABORT
+ CALL #I2C_CTRL_CH ;
+ CALL #INIT_FORTH ; common ?ABORT|PUC subroutine to init DEFERed definitions + INIT_FORTH
+ .word DUP ; -- f addr cnt cnt
+ .word QFBRAN,ABORT_END; -- f addr 0 if cnt = 0 display nothing
+ .word ECHO ; force ECHO
+ .word XSQUOTE ;
.byte 5,27,"[7m",'@' ;
.word TYPE ; cmd "reverse video" + displays "@"
.word LIT,I2CSLAVEADR ;
- .word FETCH,DOT ; displays <I2C_Slave_Address>
- .word QDUP,QFBRAN ; don't display line if line = 0 (ECHO was ON)
- .word ABORT_TYPE ;
- .word XSQUOTE ; -- f c-addr u line c-addr1 u1 displays the line where error occured
- .byte 15,"LAST.4TH, line " ;
- .word TYPE ; -- f c-addr u line
- .word UDOT ; -- f c-addr u
-; ----------------------------------;
-; Display ABORT|WARM message ; <== WARM jumps here
-; ----------------------------------;
-ABORT_TYPE .word TYPE ; -- f display abort|warm message
- .word XSQUOTE ; -- f c-addr u
+ .word FETCH,DOT ; displays I2C_Slave_Address<<1
+; ----------------------------------;
+; Display ABORT|WARM message ; -- f addr cnt <== WARM jumps here
+; ----------------------------------;
+ABORT_TYPE .word TYPE ; -- f display QABORT|WARM message
+ .word XSQUOTE ;
.byte 4,27,"[0m" ;
- .word TYPE ; -- f set normal video
-ABORT_END .word ABORT ; -- f no return
+ .word TYPE ; set normal video
+ABORT_END .word ABORT ; -- f|f addr 0 no return
; ----------------------------------;
+RXON ; called by SLEEP before CPU sleeping down.
; ----------------------------------;
-INIT_TERM ; TOS = RSTIV_MEM
-; ----------------------------------;
-I2C_INIT_TERM
- CMP #2,TOS ;
- JNC I2C_INIT_TERM_END ; no INIT_TERM if RSTIV_MEM U< 2 (WARM)
+I2C_ACCEPT MOV.B #0,Y ; ACCEPT request Ctrl_Char = $00
; ----------------------------------;
- BIS #07C0h,&TERM_CTLW0 ; set I2C_Slave in RX mode to receive I2C_address
- MOV &I2CSLAVEADR,Y ; init value found in FRAM INFO
- RRA Y ; I2C Slave address without R/W bit
- BIS #400h,Y ; enable I2COA0 Slave address
- MOV Y,&TERM_I2COA0 ;
- BIS.B #BUS_TERM,&TERM_SEL ; Configure pins TERM_I2C
- BIC #1,&TERM_CTLW0 ; release UC_TERM from reset...
- BIS #WAKE_UP,&TERM_IE ; then enable interrupt for wake up on terminal input
- BIC #LOCKLPM5,&PM5CTL0 ; activate all previous I/O settings.
-I2C_INIT_TERM_END
+I2C_CTRL_CH BIT #TX_TERM,&TERM_IFG ; send it to I2C_Master_RX to restart it in TX mode
+ JZ I2C_CTRL_CH ; wait TX buffer empty
+ MOV.B Y,&TERM_TXBUF ; send Ctrl_Char
+WAITCHAREND BIT #4,&TERM_IFG ; I2C_Master (re)STARTed ?
+ JZ WAITCHAREND ; loop back if no
; ----------------------------------;
-COLD_TERM ; nothing to do
+I2C_COLD_TERM
; ----------------------------------;
- MOV @RSP+,PC ;
+COLD_TERM ; does nothing by default
; ----------------------------------;
-
-
+I2C_INIT_SOFT ;
; ----------------------------------;
-RXON ; send ctrl_char $00 as ACCEPT request
+INIT_SOFT_TERM
+ MOV @RSP+,PC ; does nothing by default
; ----------------------------------;
-I2C_RXON MOV.B #0,Y ; ACCEPT request Ctrl_Char = $00
+;-------------------------------------------------------------------------------
+; INIT TERMinal then enable I/O
+;-------------------------------------------------------------------------------
; ----------------------------------;
-I2C_CTRL_CH ; send it to I2C_Master_RX to restart it in TX mode
+I2C_INIT_TERM ;
; ----------------------------------;
- BIT #TX_TERM,&TERM_IFG ;3
- JZ I2C_CTRL_CH ;2 wait TX buffer empty
- MOV.B Y,&TERM_TXBUF ;3 send Ctrl_Char
-WAITCHAREND
- BIT #4,&TERM_IFG ; I2C_Master (re)STARTed ?
- JZ WAITCHAREND ; no
+INIT_TERM ; TOS = USERSYS, don't change
+ BIS #07C0h,&TERM_CTLW0 ; set I2C_Slave in RX mode to receive I2C_address
+ MOV &I2CSLAVEADR,Y ; init value found in FRAM INFO
+ RRA Y ; I2C Slave address without R/W bit
+ BIS #400h,Y ; enable I2COA0 Slave address
+ MOV Y,&TERM_I2COA0 ;
+ BIS.B #BUS_TERM,&TERM_SEL ; Configure pins TERM_I2C
+ BIC #1,&TERM_CTLW0 ; release UC_TERM from reset...
+ BIS #WAKE_UP,&TERM_IE ; then enable interrupt for wake up on START
+ BIC #LOCKLPM5,&PM5CTL0 ; activate all previous I/O settings.
MOV @RSP+,PC ;
; ----------------------------------;
-; I2C_CTRL_CHAR sends a CTRL_Char that asks I2C_Master RX to (re)START in TX mode.
-; As TI tells nothing about I2C_Slave UCSTTIFG ON --> OFF,
-; it is assumed that the Slave clears itself UCSTTIFG after the first character has been exchanged.
;-------------------------------------------------------------------------------
-; I2C TERMINAL : WIPE COLD WARM ACCEPT KEY EMIT ECHO NOECHO
+; I2C TERMINAL : WARM SYS COLD
;-------------------------------------------------------------------------------
;-----------------------------------;
- FORTHWORD "WIPE" ; software DEEP_RESET
-;-----------------------------------;
-WIPE MOV #-1,&RSTIV_MEM ; negative value forces DEEP_RESET
- JMP COLD
-
-; ----------------------------------;
- FORTHWORD "COLD" ; performs a software reset
-; ----------------------------------;
-; as pin RST is replaced by pin NMI, RESET by pin activation is redirected here via USER NMI vector
-; that allows specific actions before executing software BOR.
-COLD CALL @PC+ ; COLD first calls STOP_APP, in this instance: CALL #COLD_TERM by default
-PFACOLD .word COLD_TERM ; PFACOLD default value set by WIPE.
-BODYCOLD BIT.B #IO_WIPE,&WIPE_IN ; hardware Deep_RESET request (low) ?
- JNZ COLDEXE ; no
- MOV #-1,&RSTIV_MEM ; yes, set negative value to force DEEP_RESET
-COLDEXE MOV #0A504h,&PMMCTL0 ; performs software_BOR --> RST_vector --> RESET in forthMSP430FR.asm
-; ----------------------------------;
-
-;-----------------------------------;
- FORTHWORD "WARM" ;
+; FORTHWORD "WARM" ; (n) --
;-----------------------------------;
-;Z WARM xi -- ; the end of RESET
-;-----------------------------------;
-WARM ;
-;-------------------------------------------------------------------------------
-; RESET 7: if RSTIV_MEM <> WARM, init TERM and enable I/O
-;-------------------------------------------------------------------------------
- CALL @PC+ ; init TERM, only if TOS U>= 2 (RSTIV_MEM <> WARM)
- .IFNDEF SD_CARD_LOADER ;
-PFAWARM .word INIT_TERM ; INI_HARD_APP default value, init TERM UC, unlock I/O's, TOS = RSTIV_MEM
- .ELSE
-PFAWARM .word INI_HARD_SD ; init SD Card + init TERM, see forthMSP430FR_SD_INIT.asm
- .ENDIF ; TOS = RSTIV_MEM
+I2C_WARM ;
;-----------------------------------;
-WARM_DISPLAY ; TOS = RSTIV_MEM value
- MOV.B #3,Y ; WARM request Ctrl_Char = $03
- CALL #I2C_CTRL_CH ; send it to I2C_Master to reSTART in RX mode
- ASMtoFORTH
+WARM CALL &HARD_APP ; init HARD_APP, i.e. UART_TERMinal then unlock IO's
+ mASM2FORTH ; display a message then goto QUIT (without return):
+ .word ECHO ;
.word XSQUOTE
.byte 7,13,10,27,"[7m@" ; CR+LF + cmd "reverse video" + @
.word TYPE
- .word LIT,I2CSLAVEADR,FETCH,DOT
+ .word LIT,I2CSLAVEADR,FETCH
+ .word DOT ; display decimal I2C_address<<1
.word LIT,'#',EMIT
- .word DOT ; display signed RSTIV_MEM
+ .word DOT ; display signed USERSYS
.word XSQUOTE
- .byte 25,"FastForth ©J.M.Thoorens "
+ .byte 25,"FastForth ",169,"J.M.Thoorens, "
.word TYPE
- .word LIT,FRAM_FULL,HERE,MINUS,UDOT
+ .word LIT,FRAM_FULL
+ .word HEREXEC,MINUS,UDOT ; number of...
.word XSQUOTE
- .byte 10,"bytes free"
- .word BRAN,ABORT_TYPE ; without return!
+ .byte 10,"bytes free" ; bytes free
+ .word BRAN,ABORT_TYPE ; no return
+;-----------------------------------;
-; ----------------------------------;
- FORTHWORD "ACCEPT"
+;-----------------------------------;
+ FORTHWORD "SYS" ; n -- software RST, DEEP_RST, COLD, WARM
+;-----------------------------------;
+ CMP #0,TOS ;
+ JL SYSEND ; if -n SYS ==> COLD + DEEP_RESET
+ JZ NOPUC ; if [0] SYS
+ BIT #1,TOS ;
+ JNC SYSEND ; if +n SYS (+n even)
+NOPUC PUSH #WARM ; push WARM address
+ PUSH RSP ; Push address of WARM address
+ JMP INIT_FORTH ; if +n SYS (+n odd) ==> INIT_FORTH --> WARM --> WARM display
+SYSEND MOV TOS,&USERSYS ; ==> COLD --> PUC --> INIT_FORTH --> WARM --> WARM display
+;===============================================================================
+COLD ; <--- USER_NMI vector <--- <RESET> and <RESET> + <SW1> (DEEP_RESET)
+;===============================================================================
+; as pin RST is replaced by pin NMI by RESET below, hardware RESET is redirected here via USER NMI vector
+; that allows specific actions before executing software BOR:
+ CALL &COLD_APP ; to stop APPlication before reset
+ BIT.B #SW1,&SW1_IN ; <SW1> pressed ?
+ JNZ COLDEXE ; no
+ MOV #-1,&USERSYS ; yes, force USERSYS negative value to do DEEP_RESET
+COLDEXE MOV #0A504h,&PMMCTL0 ; performs software_BOR ------------------------+
+;=============================================================================== |
+RESET ; <-- RST vect. <-- SYS_failures PUC POR BOR <--+
+;===============================================================================
+; PUC 1: replace pin RESET by pin NMI, stops WDT_RESET
+;-------------------------------------------------------------------------------
+ BIS #3,&SFRRPCR ; pin RST becomes pin NMI with falling edge, so SYSRSTIV = 4
+ BIS #10h,&SFRIE1 ; enable NMI interrupt ==> hardware RESET is redirected to COLD.
+ MOV #5A80h,&WDTCTL ; disable WDT RESET
+;-------------------------------------------------------------------------------
+; PUC 2: INIT STACK
+;-------------------------------------------------------------------------------
+ MOV #RSTACK,RSP ; init return stack
+ MOV #PSTACK,PSP ; init parameter stack
+;-------------------------------------------------------------------------------
+; PUC 3: I/O, RAM, RTC, CS, SYS initialisation limited to FastForth usage.
+; All unused I/O are set as input with pullup resistor.
+;-------------------------------------------------------------------------------
+ .include "TargetInit.asm" ; include target specific init code
+;-------------------------------------------------------------------------------
+; PUC 4: init RAM to 0
+;-------------------------------------------------------------------------------
+ MOV #RAM_LEN,X ; 2 RAM_LEN must be even and > 1, obviously.
+INITRAMLOOP SUB #2,X ; 1
+ MOV #0,RAM_ORG(X) ; 3
+ JNZ INITRAMLOOP ; 2 6 cycles loop !
+;-------------------------------------------------------------------------------
+; PUC 5: GET SYSRSTIV and SYS_USER
+;-------------------------------------------------------------------------------
+ MOV &USERSYS,TOS ; TOS = USERSYS
+ MOV #0,&USERSYS ; clear USERSYS
+ AND #-1,TOS ;
+ JNZ PUC6 ; if TOS <> 0, keep USERSYS value
+ MOV &SYSRSTIV,TOS ; TOS <-- SYSRSTIV <-- 0
+;-------------------------------------------------------------------------------
+; PUC 6: START FORTH engine
+;-------------------------------------------------------------------------------
+PUC6 CALL #INIT_FORTH ; common part of QABORT|PUC
+PUCNEXT .WORD WARM ; no return. May be replaced by XBOOT.
+;-----------------------------------;
+
+;-------------------------------------------------------------------------------
+; INTERPRETER INPUT: ACCEPT KEY EMIT ECHO NOECHO
+;-------------------------------------------------------------------------------
+ FORTHWORD "ACCEPT" ;
; ----------------------------------;
;https://forth-standard.org/standard/core/ACCEPT
;C ACCEPT addr addr len -- addr len' get line at addr to interpret len' chars
MOV @PSP,TOS ;2 -- org ptr )
ADD TOS,W ;1 -- org ptr W=buf_end )
MOV #0Ah,T ;2 T = 'LF' to speed up char loop in part II > prepare stack and registers for TERMINAL_INT use
- MOV #20h,S ;2 S = 'BL' to speed up char loop in part II )
- PUSHM #4,IP ;6 PUSH IP,S,T,W r-- IP, 'BL', 'LF', buf_end )
-;vvvvvvvvvvvvv OPTION vvvvvvvvvvvvvv;
-; BIC.B #LED1,&LED1_DIR ; Red led OFF,
-; BIC.B #LED1,&LED1_OUT ; end of Slave TX
-;^^^^^^^^^^^^^ OPTION ^^^^^^^^^^^^^^;
- JMP SLEEP ; which calls RXON before goto sleep
+ MOV #20h,S ;2 S = 'BL' to speed up char loop in part II )
+ PUSHM #4,IP ;6 PUSH IP,S,T,W R-- IP, 'BL', 'LF', buf_end )
+ JMP SLEEP ;2
; ----------------------------------;
+; As TI says nothing about the reset of the UCSTTIFG flag by the I2C_Slave,
+; it is assumed that it clears it as soon as the first byte has been exchanged.
; **********************************;
-TERMINAL_INT ; <--- START interrupt vector, bus is stalled, waiting ACK first char by I2C_Slave RX
+TERMINAL_INT ; down to LPM4 <--- START interrupt vector, bus is stalled, waiting ACK first char by I2C_Slave RX
; **********************************;
; (ACCEPT) part II under interrupt ; Org Ptr --
; ----------------------------------;
ADD #4,RSP ;1 remove SR and PC from stack, SR flags are lost (unused by FORTH interpreter)
- BIC #WAKE_UP,&TERM_IFG ; clear UCSTTIFG before return to SLEEP (because not cleared by RX_TERM reading)
+ BIC #WAKE_UP,&TERM_IFG ; clear UCSTTIFG before return to SLEEP (instead of RXBUF access to clear it)
BIT #10h,&TERM_CTLW0 ;4 test UCTR
JNZ SLEEP ; if I2C_Master RX, loop back to SLEEP
POPM #4,IP ;6 POPM IP=ret_IP,W=src_end,T=0Ah,S=20h
-;vvvvvvvvvvvvv OPTION vvvvvvvvvvvvvv;
-; BIS.B #LED2,&LED2_OUT ; green led ON,
-; BIS.B #LED2,&LED2_DIR ; start of Slave RX
-;^^^^^^^^^^^^^ OPTION ^^^^^^^^^^^^^^;
QNEWCHAR BIT #RX_TERM,&TERM_IFG ;3 test RX BUF IFG
JZ QNEWCHAR ;2 wait RX BUF full
; ----------------------------------;
JC ASTORETEST ;2 jump if char U>= BL
; ----------------------------------;
CMP.B #8,Y ; char = BS ?
- JNZ QNEWCHAR ; case of all other control chars
+ JNZ QNEWCHAR ; case of all other control chars: skip it
; ----------------------------------;
-; start of backspace ; made only by an human
+; case of backspace ; made only by an human
; ----------------------------------;
CMP @PSP,TOS ; Ptr = Org ?
JZ QNEWCHAR ; yes: do nothing else
SUB #1,TOS ; no : dec Ptr
- JMP QNEWCHAR
+ JMP QNEWCHAR ;
; ----------------------------------;
ASTORETEST CMP W,TOS ; 1 end of buffer is reached ?
- JZ QNEWCHAR ; 2 yes: loopback
+ JC QNEWCHAR ; 2 yes: don't store char @ dst_Ptr, don't increment TOS
MOV.B Y,0(TOS) ; 3 no: store char @ dst_Ptr
ADD #1,TOS ; 1 increment dst_Ptr
- JMP QNEWCHAR
-; ----------------------------------;
-LF_NEXT ; -- Org Ptr
-; ----------------------------------;
- SUB @PSP+,TOS ; -- len'
-; ----------------------------------;
-; MOV #LPMx+GIE,&LPM_MODE ; no need to redefine LPM_MODE because I2C START works down to LPM4 mode
-; ----------------------------------; after the sent of 'LF', I2C_Master automaticaly reSTARTs in RX mode:
- CALL #WAITCHAREND ; wait I2C_Master (re)START RX
-;vvvvvvvvvvvvv OPTION vvvvvvvvvvvvvv;
-; BIC.B #LED2,&LED2_DIR ; green led OFF,
-; BIC.B #LED2,&LED2_OUT ; end of Slave RX
-; BIS.B #LED1,&LED1_DIR ; Red led ON,
-; BIS.B #LED1,&LED1_OUT ; start of Slave TX
-;^^^^^^^^^^^^^ OPTION ^^^^^^^^^^^^^^;
-ACCEPT_EOL CMP #0,&LINE ;
- JZ ACCEPT_END ;
- ADD #1,&LINE ; if LINE <> 0 increment LINE
-ACCEPT_END ;
-; ----------------------------------;
- MOV S,Y ; output a BL on TERMINAL (for the case of error occuring)
+ JMP QNEWCHAR ;
+; ----------------------------------;
+LF_NEXT SUB @PSP+,TOS ; -- len'
+ACCEPT_EOL MOV S,Y ; output a BL on TERMINAL (for the case of error occuring)
JMP YEMIT ; before line interpreting
; **********************************;
; ----------------------------------;
- FORTHWORD "KEY"
+ FORTHWORD "KEY" ;
; ----------------------------------;
; https://forth-standard.org/standard/core/KEY
; KEY -- c wait character from input device ; primary DEFERred word
KEY MOV @PC+,PC ; Code Field Address (CFA) of KEY
PFAKEY .word BODYKEY ; Param Field Address (PFA) of KEY, with its default value
-BODYKEY SUB #2,PSP ; push old TOS..
+BODYKEY MOV.B #1,Y ; KEY request Ctrl_Char = $01
+ CALL #I2C_CTRL_CH ; send it to I2C_Master to restart its UART in RX mode
+ SUB #2,PSP ; push old TOS..
MOV TOS,0(PSP) ; ..onto stack
- MOV.B #1,Y ; KEY request Ctrl_Char = $01
- CALL #I2C_CTRL_CH ; send it to I2C_Master to restart UART in RX mode
BKEYLOOP BIT #RX_TERM,&TERM_IFG ; received char ?
JZ BKEYLOOP ; wait char received
MOV &TERM_RXBUF,TOS ; -- char
+ CALL #RXON ; send Ctrl_Char $00 to I2C_Master to restart its UART in TX mode
BKEYEND MOV @IP+,PC ; -- char
+; ----------------------------------;
; ----------------------------------;
- FORTHWORD "EMIT"
+ FORTHWORD "EMIT" ;
; ----------------------------------;
; https://forth-standard.org/standard/core/EMIT
; EMIT c -- output character to an output device ; primary DEFERred word
EMIT MOV @PC+,PC ;3 Code Field Address (CFA) of EMIT
PFAEMIT .word BODYEMIT ; Parameter Field Address (PFA) of EMIT, with its default value
-BODYEMIT MOV TOS,Y ;1 sends character to the default output TERMINAL
+BODYEMIT
+ MOV TOS,Y ;1 sends character to the default output TERMINAL
MOV @PSP+,TOS ;2
YEMIT BIT #TX_TERM,&TERM_IFG ;3
JZ YEMIT ;2 wait TX buffer empty
-QYEMIT .word 48C2h ;3 48C2h = MOV.B Y,&<next_adr>
- .word TERM_TXBUF ;
+QYEMIT MOV.B Y,&TERM_TXBUF ;3 may be replaced by MOV @IP+,PC with NOECHO
YEMITEND MOV @IP+,PC ;4 11 words
+; ----------------------------------;
; ----------------------------------;
- FORTHWORD "ECHO"
+ FORTHWORD "ECHO" ; connect EMIT to TERMINAL (default)
; ----------------------------------;
-;Z ECHO -- connect EMIT to TERMINAL (default)
ECHO MOV #48C2h,&QYEMIT ; 48C2h = MOV.B Y,&<next_adr>
- MOV #0,&LINE ;
MOV #5,Y ; ECHO request Ctrl_Char = $05
-ECHOEND CALL #I2C_CTRL_CH ; send it to I2C_Master to do it echo char to TERMINAL
- MOV @IP+,PC
+ECHOEND CALL #I2C_CTRL_CH ;
+ MOV @IP+,PC ;
+; ----------------------------------;
; ----------------------------------;
- FORTHWORD "NOECHO"
+ FORTHWORD "NOECHO" ; disconnect EMIT to TERMINAL
; ----------------------------------;
-;Z NOECHO -- disconnect EMIT to TERMINAL
-NOECHO MOV #4D30h,&QYEMIT ; NEXT = 4D30h = MOV @IP+,PC
- MOV #1,&LINE ;
+NOECHO MOV #4D30h,&QYEMIT ; NEXT = 4D30h = MOV @IP+,PC
MOV #4,Y ; NOECHO request Ctrl_Char = $04
- JMP ECHOEND ; send it to I2C_Master, to not do it echo to TERMINAL
+ JMP ECHOEND ;
+; ----------------------------------;
OSDN Git Service
